/usr/bin/java -Xmx16000000000 -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-sre-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 01:07:51,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 01:07:51,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 01:07:51,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 01:07:51,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 01:07:51,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 01:07:51,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 01:07:51,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 01:07:51,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 01:07:51,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 01:07:51,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 01:07:51,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 01:07:51,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 01:07:51,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 01:07:51,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 01:07:51,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 01:07:51,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 01:07:51,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 01:07:51,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 01:07:51,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 01:07:51,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 01:07:51,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 01:07:51,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 01:07:51,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 01:07:51,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 01:07:51,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 01:07:51,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 01:07:51,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 01:07:51,460 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 [2022-01-18 01:07:51,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 01:07:51,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 01:07:51,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 01:07:51,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 01:07:51,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 01:07:51,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 01:07:51,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 01:07:51,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 01:07:51,492 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 01:07:51,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 01:07:51,492 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 01:07:51,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 01:07:51,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 01:07:51,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 01:07:51,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 01:07:51,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 01:07:51,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 01:07:51,493 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 01:07:51,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 01:07:51,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 01:07:51,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 01:07:51,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 01:07:51,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 01:07:51,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 01:07:51,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 01:07:51,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:07:51,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 01:07:51,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 01:07:51,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 01:07:51,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 01:07:51,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 01:07:51,497 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 01:07:51,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 01:07:51,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 01:07:51,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 01:07:51,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 01:07:51,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 01:07:51,722 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 01:07:51,728 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 01:07:51,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2022-01-18 01:07:51,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2db69ef9/a5babb11d93e43218d28c5311bbe6491/FLAG4cd0373a0 [2022-01-18 01:07:52,173 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 01:07:52,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2022-01-18 01:07:52,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2db69ef9/a5babb11d93e43218d28c5311bbe6491/FLAG4cd0373a0 [2022-01-18 01:07:52,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2db69ef9/a5babb11d93e43218d28c5311bbe6491 [2022-01-18 01:07:52,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 01:07:52,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 01:07:52,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 01:07:52,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 01:07:52,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 01:07:52,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b6f65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52, skipping insertion in model container [2022-01-18 01:07:52,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 01:07:52,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 01:07:52,768 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-sre-symm.wvr.c[2133,2146] [2022-01-18 01:07:52,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:07:52,776 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 01:07:52,790 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-sre-symm.wvr.c[2133,2146] [2022-01-18 01:07:52,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:07:52,802 INFO L208 MainTranslator]: Completed translation [2022-01-18 01:07:52,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52 WrapperNode [2022-01-18 01:07:52,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 01:07:52,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 01:07:52,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 01:07:52,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 01:07:52,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,833 INFO L137 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-01-18 01:07:52,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 01:07:52,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 01:07:52,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 01:07:52,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 01:07:52,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 01:07:52,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 01:07:52,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 01:07:52,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 01:07:52,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (1/1) ... [2022-01-18 01:07:52,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:07:52,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:07:52,892 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) [2022-01-18 01:07:52,897 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 [2022-01-18 01:07:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 01:07:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 01:07:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 01:07:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 01:07:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 01:07:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 01:07:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 01:07:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 01:07:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 01:07:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 01:07:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 01:07:52,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 01:07:52,927 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 01:07:52,979 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 01:07:52,980 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 01:07:53,170 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 01:07:53,177 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 01:07:53,177 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 01:07:53,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:07:53 BoogieIcfgContainer [2022-01-18 01:07:53,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 01:07:53,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 01:07:53,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 01:07:53,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 01:07:53,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:07:52" (1/3) ... [2022-01-18 01:07:53,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ce46b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:07:53, skipping insertion in model container [2022-01-18 01:07:53,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:07:52" (2/3) ... [2022-01-18 01:07:53,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ce46b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:07:53, skipping insertion in model container [2022-01-18 01:07:53,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:07:53" (3/3) ... [2022-01-18 01:07:53,192 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2022-01-18 01:07:53,196 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 01:07:53,196 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 01:07:53,196 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 01:07:53,196 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 01:07:53,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,254 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,259 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:07:53,268 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 01:07:53,312 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 01:07:53,327 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 [2022-01-18 01:07:53,327 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 01:07:53,342 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 102 transitions, 220 flow [2022-01-18 01:07:53,424 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:53,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:53,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-18 01:07:53,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:53,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:53,453 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:53,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:53,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1564991262, now seen corresponding path program 1 times [2022-01-18 01:07:53,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:53,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994014041] [2022-01-18 01:07:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:53,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:53,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:53,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994014041] [2022-01-18 01:07:53,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994014041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:53,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:53,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 01:07:53,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716654354] [2022-01-18 01:07:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:53,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:07:53,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:53,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:07:53,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:07:53,905 INFO L87 Difference]: Start difference. First operand has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 0 states have call successors, (0), 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 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:54,131 INFO L93 Difference]: Finished difference Result 1469 states and 3772 transitions. [2022-01-18 01:07:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:07:54,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-18 01:07:54,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:54,160 INFO L225 Difference]: With dead ends: 1469 [2022-01-18 01:07:54,161 INFO L226 Difference]: Without dead ends: 1225 [2022-01-18 01:07:54,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:07:54,167 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 206 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 613 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 [2022-01-18 01:07:54,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 613 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:54,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2022-01-18 01:07:54,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 814. [2022-01-18 01:07:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 2.6186961869618695) internal successors, (2129), 813 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 2129 transitions. [2022-01-18 01:07:54,261 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 2129 transitions. Word has length 73 [2022-01-18 01:07:54,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:54,262 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 2129 transitions. [2022-01-18 01:07:54,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 2129 transitions. [2022-01-18 01:07:54,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 01:07:54,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:54,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:54,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 01:07:54,266 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:54,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:54,267 INFO L85 PathProgramCache]: Analyzing trace with hash 298673121, now seen corresponding path program 1 times [2022-01-18 01:07:54,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:54,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364277022] [2022-01-18 01:07:54,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:54,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:54,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:54,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:54,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364277022] [2022-01-18 01:07:54,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364277022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:54,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:54,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:07:54,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209977165] [2022-01-18 01:07:54,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:54,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:07:54,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:54,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:07:54,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:07:54,374 INFO L87 Difference]: Start difference. First operand 814 states and 2129 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:54,420 INFO L93 Difference]: Finished difference Result 1201 states and 3043 transitions. [2022-01-18 01:07:54,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:07:54,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-18 01:07:54,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:54,428 INFO L225 Difference]: With dead ends: 1201 [2022-01-18 01:07:54,428 INFO L226 Difference]: Without dead ends: 1100 [2022-01-18 01:07:54,431 INFO L932 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 [2022-01-18 01:07:54,432 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 45 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:54,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 162 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:07:54,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-01-18 01:07:54,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 713. [2022-01-18 01:07:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 2.6474719101123596) internal successors, (1885), 712 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1885 transitions. [2022-01-18 01:07:54,465 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1885 transitions. Word has length 75 [2022-01-18 01:07:54,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:54,467 INFO L470 AbstractCegarLoop]: Abstraction has 713 states and 1885 transitions. [2022-01-18 01:07:54,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,468 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1885 transitions. [2022-01-18 01:07:54,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 01:07:54,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:54,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:54,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 01:07:54,472 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:54,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:54,473 INFO L85 PathProgramCache]: Analyzing trace with hash 752097827, now seen corresponding path program 1 times [2022-01-18 01:07:54,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:54,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99497078] [2022-01-18 01:07:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:54,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:54,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:54,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:54,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99497078] [2022-01-18 01:07:54,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99497078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:54,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:54,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:07:54,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259921705] [2022-01-18 01:07:54,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:54,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:07:54,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:54,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:07:54,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:07:54,572 INFO L87 Difference]: Start difference. First operand 713 states and 1885 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:54,601 INFO L93 Difference]: Finished difference Result 630 states and 1576 transitions. [2022-01-18 01:07:54,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:07:54,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-18 01:07:54,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:54,605 INFO L225 Difference]: With dead ends: 630 [2022-01-18 01:07:54,605 INFO L226 Difference]: Without dead ends: 630 [2022-01-18 01:07:54,605 INFO L932 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 [2022-01-18 01:07:54,611 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 41 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:54,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 110 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:07:54,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-01-18 01:07:54,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2022-01-18 01:07:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 629 states have (on average 2.505564387917329) internal successors, (1576), 629 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1576 transitions. [2022-01-18 01:07:54,629 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1576 transitions. Word has length 75 [2022-01-18 01:07:54,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:54,629 INFO L470 AbstractCegarLoop]: Abstraction has 630 states and 1576 transitions. [2022-01-18 01:07:54,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,630 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1576 transitions. [2022-01-18 01:07:54,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:54,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:54,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:54,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 01:07:54,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:54,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:54,633 INFO L85 PathProgramCache]: Analyzing trace with hash 792129958, now seen corresponding path program 1 times [2022-01-18 01:07:54,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:54,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917175059] [2022-01-18 01:07:54,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:54,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:54,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:54,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917175059] [2022-01-18 01:07:54,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917175059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:54,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:54,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:07:54,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27470123] [2022-01-18 01:07:54,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:54,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:07:54,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:54,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:07:54,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:07:54,761 INFO L87 Difference]: Start difference. First operand 630 states and 1576 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:54,807 INFO L93 Difference]: Finished difference Result 1388 states and 3383 transitions. [2022-01-18 01:07:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 01:07:54,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:54,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:54,813 INFO L225 Difference]: With dead ends: 1388 [2022-01-18 01:07:54,813 INFO L226 Difference]: Without dead ends: 1388 [2022-01-18 01:07:54,813 INFO L932 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 [2022-01-18 01:07:54,819 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 179 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:54,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 242 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:07:54,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2022-01-18 01:07:54,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 794. [2022-01-18 01:07:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 2.4779319041614123) internal successors, (1965), 793 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1965 transitions. [2022-01-18 01:07:54,852 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1965 transitions. Word has length 77 [2022-01-18 01:07:54,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:54,853 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 1965 transitions. [2022-01-18 01:07:54,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:54,854 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1965 transitions. [2022-01-18 01:07:54,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:54,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:54,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:54,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 01:07:54,857 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:54,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:54,858 INFO L85 PathProgramCache]: Analyzing trace with hash -751864442, now seen corresponding path program 1 times [2022-01-18 01:07:54,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:54,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038809549] [2022-01-18 01:07:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:54,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:55,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:55,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038809549] [2022-01-18 01:07:55,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038809549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:55,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:55,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:55,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936396536] [2022-01-18 01:07:55,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:55,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:55,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:55,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:55,061 INFO L87 Difference]: Start difference. First operand 794 states and 1965 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:55,397 INFO L93 Difference]: Finished difference Result 1261 states and 3048 transitions. [2022-01-18 01:07:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 01:07:55,398 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:55,402 INFO L225 Difference]: With dead ends: 1261 [2022-01-18 01:07:55,402 INFO L226 Difference]: Without dead ends: 995 [2022-01-18 01:07:55,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-01-18 01:07:55,403 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 179 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:55,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 830 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:55,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2022-01-18 01:07:55,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 726. [2022-01-18 01:07:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 2.484137931034483) internal successors, (1801), 725 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:55,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1801 transitions. [2022-01-18 01:07:55,424 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1801 transitions. Word has length 77 [2022-01-18 01:07:55,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:55,424 INFO L470 AbstractCegarLoop]: Abstraction has 726 states and 1801 transitions. [2022-01-18 01:07:55,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:55,425 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1801 transitions. [2022-01-18 01:07:55,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:55,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:55,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:55,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 01:07:55,427 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:55,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:55,427 INFO L85 PathProgramCache]: Analyzing trace with hash -820574426, now seen corresponding path program 2 times [2022-01-18 01:07:55,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:55,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450311218] [2022-01-18 01:07:55,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:55,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:55,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:55,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450311218] [2022-01-18 01:07:55,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450311218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:55,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:55,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:55,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270829448] [2022-01-18 01:07:55,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:55,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:55,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:55,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:55,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:55,562 INFO L87 Difference]: Start difference. First operand 726 states and 1801 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:55,884 INFO L93 Difference]: Finished difference Result 1106 states and 2734 transitions. [2022-01-18 01:07:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 01:07:55,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:55,889 INFO L225 Difference]: With dead ends: 1106 [2022-01-18 01:07:55,889 INFO L226 Difference]: Without dead ends: 939 [2022-01-18 01:07:55,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 01:07:55,890 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 97 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:55,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1111 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:55,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-01-18 01:07:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 730. [2022-01-18 01:07:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 2.4801097393689986) internal successors, (1808), 729 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:55,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1808 transitions. [2022-01-18 01:07:55,911 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1808 transitions. Word has length 77 [2022-01-18 01:07:55,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:55,911 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 1808 transitions. [2022-01-18 01:07:55,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:55,911 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1808 transitions. [2022-01-18 01:07:55,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:55,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:55,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:55,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 01:07:55,914 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:55,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:55,914 INFO L85 PathProgramCache]: Analyzing trace with hash -433730370, now seen corresponding path program 3 times [2022-01-18 01:07:55,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:55,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101676236] [2022-01-18 01:07:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:55,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:56,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:56,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:56,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101676236] [2022-01-18 01:07:56,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101676236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:56,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:56,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:56,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349333363] [2022-01-18 01:07:56,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:56,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:56,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:56,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:56,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:56,034 INFO L87 Difference]: Start difference. First operand 730 states and 1808 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:56,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:56,260 INFO L93 Difference]: Finished difference Result 1027 states and 2536 transitions. [2022-01-18 01:07:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 01:07:56,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:56,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:56,265 INFO L225 Difference]: With dead ends: 1027 [2022-01-18 01:07:56,265 INFO L226 Difference]: Without dead ends: 886 [2022-01-18 01:07:56,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:07:56,266 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 71 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:56,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 936 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-01-18 01:07:56,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 734. [2022-01-18 01:07:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 733 states have (on average 2.47612551159618) internal successors, (1815), 733 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1815 transitions. [2022-01-18 01:07:56,283 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1815 transitions. Word has length 77 [2022-01-18 01:07:56,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:56,284 INFO L470 AbstractCegarLoop]: Abstraction has 734 states and 1815 transitions. [2022-01-18 01:07:56,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:56,285 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1815 transitions. [2022-01-18 01:07:56,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:56,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:56,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:56,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 01:07:56,286 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:56,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:56,288 INFO L85 PathProgramCache]: Analyzing trace with hash -143760860, now seen corresponding path program 4 times [2022-01-18 01:07:56,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:56,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8639291] [2022-01-18 01:07:56,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:56,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:56,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:56,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:56,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8639291] [2022-01-18 01:07:56,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8639291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:56,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:56,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:56,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991009786] [2022-01-18 01:07:56,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:56,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:56,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:56,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:56,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:56,423 INFO L87 Difference]: Start difference. First operand 734 states and 1815 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:56,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:56,625 INFO L93 Difference]: Finished difference Result 1006 states and 2476 transitions. [2022-01-18 01:07:56,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:07:56,626 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:56,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:56,629 INFO L225 Difference]: With dead ends: 1006 [2022-01-18 01:07:56,629 INFO L226 Difference]: Without dead ends: 836 [2022-01-18 01:07:56,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:07:56,630 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 71 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:56,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 849 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:56,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-01-18 01:07:56,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 708. [2022-01-18 01:07:56,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 707 states have (on average 2.483734087694484) internal successors, (1756), 707 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:56,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1756 transitions. [2022-01-18 01:07:56,646 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1756 transitions. Word has length 77 [2022-01-18 01:07:56,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:56,646 INFO L470 AbstractCegarLoop]: Abstraction has 708 states and 1756 transitions. [2022-01-18 01:07:56,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:56,646 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1756 transitions. [2022-01-18 01:07:56,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:56,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:56,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:56,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 01:07:56,650 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:56,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:56,650 INFO L85 PathProgramCache]: Analyzing trace with hash 66532486, now seen corresponding path program 5 times [2022-01-18 01:07:56,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:56,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020001223] [2022-01-18 01:07:56,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:56,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:56,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:56,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:56,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020001223] [2022-01-18 01:07:56,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020001223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:56,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:56,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:56,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642461918] [2022-01-18 01:07:56,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:56,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:56,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:56,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:56,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:56,803 INFO L87 Difference]: Start difference. First operand 708 states and 1756 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:57,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:57,041 INFO L93 Difference]: Finished difference Result 1089 states and 2703 transitions. [2022-01-18 01:07:57,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 01:07:57,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:57,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:57,046 INFO L225 Difference]: With dead ends: 1089 [2022-01-18 01:07:57,046 INFO L226 Difference]: Without dead ends: 928 [2022-01-18 01:07:57,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:07:57,048 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 97 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:57,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 777 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:57,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-01-18 01:07:57,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 716. [2022-01-18 01:07:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 2.481118881118881) internal successors, (1774), 715 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:57,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1774 transitions. [2022-01-18 01:07:57,065 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1774 transitions. Word has length 77 [2022-01-18 01:07:57,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:57,065 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1774 transitions. [2022-01-18 01:07:57,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1774 transitions. [2022-01-18 01:07:57,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:57,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:57,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:57,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 01:07:57,068 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:57,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:57,068 INFO L85 PathProgramCache]: Analyzing trace with hash 399665220, now seen corresponding path program 6 times [2022-01-18 01:07:57,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:57,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762598597] [2022-01-18 01:07:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:57,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:57,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:57,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762598597] [2022-01-18 01:07:57,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762598597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:57,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:57,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:57,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730122015] [2022-01-18 01:07:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:57,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:57,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:57,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:57,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:57,205 INFO L87 Difference]: Start difference. First operand 716 states and 1774 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:57,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:57,444 INFO L93 Difference]: Finished difference Result 1061 states and 2634 transitions. [2022-01-18 01:07:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:07:57,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:57,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:57,448 INFO L225 Difference]: With dead ends: 1061 [2022-01-18 01:07:57,448 INFO L226 Difference]: Without dead ends: 920 [2022-01-18 01:07:57,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:07:57,449 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 79 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:57,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 810 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:57,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-01-18 01:07:57,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 720. [2022-01-18 01:07:57,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 2.477051460361613) internal successors, (1781), 719 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:57,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1781 transitions. [2022-01-18 01:07:57,465 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1781 transitions. Word has length 77 [2022-01-18 01:07:57,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:57,466 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1781 transitions. [2022-01-18 01:07:57,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1781 transitions. [2022-01-18 01:07:57,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:57,467 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:57,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:57,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 01:07:57,468 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:57,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:57,468 INFO L85 PathProgramCache]: Analyzing trace with hash 112344222, now seen corresponding path program 7 times [2022-01-18 01:07:57,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:57,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611671310] [2022-01-18 01:07:57,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:57,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:57,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:57,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611671310] [2022-01-18 01:07:57,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611671310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:57,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:57,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:57,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913163667] [2022-01-18 01:07:57,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:57,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:57,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:57,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:57,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:57,570 INFO L87 Difference]: Start difference. First operand 720 states and 1781 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:57,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:57,768 INFO L93 Difference]: Finished difference Result 1040 states and 2574 transitions. [2022-01-18 01:07:57,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:07:57,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:57,773 INFO L225 Difference]: With dead ends: 1040 [2022-01-18 01:07:57,773 INFO L226 Difference]: Without dead ends: 888 [2022-01-18 01:07:57,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:07:57,774 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 75 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 842 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 [2022-01-18 01:07:57,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 842 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:57,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2022-01-18 01:07:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 712. [2022-01-18 01:07:57,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 711 states have (on average 2.479606188466948) internal successors, (1763), 711 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:57,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1763 transitions. [2022-01-18 01:07:57,812 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1763 transitions. Word has length 77 [2022-01-18 01:07:57,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:57,813 INFO L470 AbstractCegarLoop]: Abstraction has 712 states and 1763 transitions. [2022-01-18 01:07:57,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:57,813 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1763 transitions. [2022-01-18 01:07:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:57,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:57,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:57,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 01:07:57,815 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:57,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:57,815 INFO L85 PathProgramCache]: Analyzing trace with hash 293076268, now seen corresponding path program 8 times [2022-01-18 01:07:57,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:57,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537724095] [2022-01-18 01:07:57,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:57,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:57,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:57,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537724095] [2022-01-18 01:07:57,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537724095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:57,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:57,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:57,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956799256] [2022-01-18 01:07:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:57,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:57,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:57,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:57,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:57,916 INFO L87 Difference]: Start difference. First operand 712 states and 1763 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:58,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:58,179 INFO L93 Difference]: Finished difference Result 1092 states and 2696 transitions. [2022-01-18 01:07:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 01:07:58,179 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:58,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:58,183 INFO L225 Difference]: With dead ends: 1092 [2022-01-18 01:07:58,183 INFO L226 Difference]: Without dead ends: 925 [2022-01-18 01:07:58,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 01:07:58,184 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 108 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:58,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 839 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:58,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-01-18 01:07:58,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 716. [2022-01-18 01:07:58,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 2.4755244755244754) internal successors, (1770), 715 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:58,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1770 transitions. [2022-01-18 01:07:58,200 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1770 transitions. Word has length 77 [2022-01-18 01:07:58,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:58,200 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1770 transitions. [2022-01-18 01:07:58,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:58,200 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1770 transitions. [2022-01-18 01:07:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:58,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:58,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:58,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 01:07:58,203 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:58,203 INFO L85 PathProgramCache]: Analyzing trace with hash -404693356, now seen corresponding path program 9 times [2022-01-18 01:07:58,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:58,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553093760] [2022-01-18 01:07:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:58,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:58,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:58,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:58,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553093760] [2022-01-18 01:07:58,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553093760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:58,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:58,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:58,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930539526] [2022-01-18 01:07:58,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:58,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:58,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:58,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:58,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:58,303 INFO L87 Difference]: Start difference. First operand 716 states and 1770 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:58,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:58,538 INFO L93 Difference]: Finished difference Result 1025 states and 2531 transitions. [2022-01-18 01:07:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:07:58,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:58,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:58,542 INFO L225 Difference]: With dead ends: 1025 [2022-01-18 01:07:58,542 INFO L226 Difference]: Without dead ends: 884 [2022-01-18 01:07:58,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:07:58,543 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 78 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 896 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 [2022-01-18 01:07:58,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 896 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-01-18 01:07:58,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 720. [2022-01-18 01:07:58,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 2.4714881780250346) internal successors, (1777), 719 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:58,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1777 transitions. [2022-01-18 01:07:58,559 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1777 transitions. Word has length 77 [2022-01-18 01:07:58,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:58,559 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1777 transitions. [2022-01-18 01:07:58,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:58,559 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1777 transitions. [2022-01-18 01:07:58,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:58,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:58,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:58,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 01:07:58,561 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:58,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:58,561 INFO L85 PathProgramCache]: Analyzing trace with hash -692014354, now seen corresponding path program 10 times [2022-01-18 01:07:58,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:58,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950426181] [2022-01-18 01:07:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:58,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:58,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:58,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:58,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950426181] [2022-01-18 01:07:58,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950426181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:58,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:58,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:58,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218035353] [2022-01-18 01:07:58,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:58,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:58,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:58,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:58,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:58,664 INFO L87 Difference]: Start difference. First operand 720 states and 1777 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:58,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:58,855 INFO L93 Difference]: Finished difference Result 992 states and 2438 transitions. [2022-01-18 01:07:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:07:58,856 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:58,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:58,860 INFO L225 Difference]: With dead ends: 992 [2022-01-18 01:07:58,860 INFO L226 Difference]: Without dead ends: 818 [2022-01-18 01:07:58,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:07:58,862 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 78 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:58,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 699 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:58,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-01-18 01:07:58,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 690. [2022-01-18 01:07:58,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 2.483309143686502) internal successors, (1711), 689 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:58,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1711 transitions. [2022-01-18 01:07:58,877 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1711 transitions. Word has length 77 [2022-01-18 01:07:58,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:58,877 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 1711 transitions. [2022-01-18 01:07:58,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1711 transitions. [2022-01-18 01:07:58,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:58,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:58,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:58,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 01:07:58,879 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:58,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:58,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1484822272, now seen corresponding path program 11 times [2022-01-18 01:07:58,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:58,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469629681] [2022-01-18 01:07:58,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:58,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:58,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:58,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469629681] [2022-01-18 01:07:58,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469629681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:58,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:58,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:58,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192488263] [2022-01-18 01:07:58,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:58,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:58,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:58,970 INFO L87 Difference]: Start difference. First operand 690 states and 1711 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:59,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:59,190 INFO L93 Difference]: Finished difference Result 1173 states and 2871 transitions. [2022-01-18 01:07:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 01:07:59,190 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:59,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:59,194 INFO L225 Difference]: With dead ends: 1173 [2022-01-18 01:07:59,194 INFO L226 Difference]: Without dead ends: 952 [2022-01-18 01:07:59,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:07:59,197 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 210 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:59,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 948 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-01-18 01:07:59,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 686. [2022-01-18 01:07:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.4817518248175183) internal successors, (1700), 685 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1700 transitions. [2022-01-18 01:07:59,211 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1700 transitions. Word has length 77 [2022-01-18 01:07:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:59,212 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 1700 transitions. [2022-01-18 01:07:59,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1700 transitions. [2022-01-18 01:07:59,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:59,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:59,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:59,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 01:07:59,214 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:59,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:59,215 INFO L85 PathProgramCache]: Analyzing trace with hash -279802202, now seen corresponding path program 12 times [2022-01-18 01:07:59,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:59,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426174663] [2022-01-18 01:07:59,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:59,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:59,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:59,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426174663] [2022-01-18 01:07:59,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426174663] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:59,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:59,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:59,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318743013] [2022-01-18 01:07:59,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:59,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:59,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:59,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:59,322 INFO L87 Difference]: Start difference. First operand 686 states and 1700 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:59,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:59,537 INFO L93 Difference]: Finished difference Result 1063 states and 2627 transitions. [2022-01-18 01:07:59,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 01:07:59,537 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:59,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:59,542 INFO L225 Difference]: With dead ends: 1063 [2022-01-18 01:07:59,542 INFO L226 Difference]: Without dead ends: 902 [2022-01-18 01:07:59,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 01:07:59,543 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 121 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:59,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 737 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:59,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-01-18 01:07:59,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 690. [2022-01-18 01:07:59,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 689 states have (on average 2.4775036284470247) internal successors, (1707), 689 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:59,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1707 transitions. [2022-01-18 01:07:59,557 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1707 transitions. Word has length 77 [2022-01-18 01:07:59,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:59,558 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 1707 transitions. [2022-01-18 01:07:59,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:59,558 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1707 transitions. [2022-01-18 01:07:59,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:59,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:59,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:59,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 01:07:59,560 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash 53330532, now seen corresponding path program 13 times [2022-01-18 01:07:59,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:59,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746503822] [2022-01-18 01:07:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:59,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:59,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:59,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746503822] [2022-01-18 01:07:59,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746503822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:59,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:59,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:59,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897164857] [2022-01-18 01:07:59,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:59,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:59,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:59,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:59,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:59,665 INFO L87 Difference]: Start difference. First operand 690 states and 1707 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:59,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:07:59,842 INFO L93 Difference]: Finished difference Result 1007 states and 2481 transitions. [2022-01-18 01:07:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:07:59,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:07:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:07:59,846 INFO L225 Difference]: With dead ends: 1007 [2022-01-18 01:07:59,847 INFO L226 Difference]: Without dead ends: 866 [2022-01-18 01:07:59,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:07:59,847 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 91 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:07:59,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 738 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:07:59,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-01-18 01:07:59,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 694. [2022-01-18 01:07:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 2.473304473304473) internal successors, (1714), 693 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:59,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1714 transitions. [2022-01-18 01:07:59,862 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1714 transitions. Word has length 77 [2022-01-18 01:07:59,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:07:59,862 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 1714 transitions. [2022-01-18 01:07:59,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:07:59,862 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1714 transitions. [2022-01-18 01:07:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:07:59,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:07:59,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:07:59,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 01:07:59,864 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:07:59,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:07:59,864 INFO L85 PathProgramCache]: Analyzing trace with hash -233990466, now seen corresponding path program 14 times [2022-01-18 01:07:59,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:07:59,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622566008] [2022-01-18 01:07:59,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:07:59,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:07:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:07:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:07:59,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:07:59,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622566008] [2022-01-18 01:07:59,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622566008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:07:59,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:07:59,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:07:59,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087174127] [2022-01-18 01:07:59,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:07:59,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:07:59,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:07:59,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:07:59,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:07:59,957 INFO L87 Difference]: Start difference. First operand 694 states and 1714 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:00,125 INFO L93 Difference]: Finished difference Result 978 states and 2399 transitions. [2022-01-18 01:08:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 01:08:00,125 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:00,129 INFO L225 Difference]: With dead ends: 978 [2022-01-18 01:08:00,129 INFO L226 Difference]: Without dead ends: 814 [2022-01-18 01:08:00,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:08:00,130 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 89 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:00,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 521 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:08:00,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-01-18 01:08:00,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 674. [2022-01-18 01:08:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 2.471025260029718) internal successors, (1663), 673 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:00,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1663 transitions. [2022-01-18 01:08:00,145 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1663 transitions. Word has length 77 [2022-01-18 01:08:00,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:00,145 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 1663 transitions. [2022-01-18 01:08:00,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:00,145 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1663 transitions. [2022-01-18 01:08:00,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:00,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:00,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:00,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 01:08:00,147 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:00,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:00,148 INFO L85 PathProgramCache]: Analyzing trace with hash 226686150, now seen corresponding path program 15 times [2022-01-18 01:08:00,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:00,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695719194] [2022-01-18 01:08:00,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:00,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:00,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:00,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695719194] [2022-01-18 01:08:00,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695719194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:00,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:00,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:00,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560867286] [2022-01-18 01:08:00,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:00,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:00,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:00,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:00,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:00,275 INFO L87 Difference]: Start difference. First operand 674 states and 1663 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:00,530 INFO L93 Difference]: Finished difference Result 1067 states and 2634 transitions. [2022-01-18 01:08:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 01:08:00,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:00,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:00,535 INFO L225 Difference]: With dead ends: 1067 [2022-01-18 01:08:00,535 INFO L226 Difference]: Without dead ends: 906 [2022-01-18 01:08:00,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 01:08:00,536 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 108 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 899 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 [2022-01-18 01:08:00,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 899 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-01-18 01:08:00,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 682. [2022-01-18 01:08:00,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 2.4684287812041115) internal successors, (1681), 681 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:00,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1681 transitions. [2022-01-18 01:08:00,553 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1681 transitions. Word has length 77 [2022-01-18 01:08:00,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:00,553 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 1681 transitions. [2022-01-18 01:08:00,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:00,553 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1681 transitions. [2022-01-18 01:08:00,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:00,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:00,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:00,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 01:08:00,555 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:00,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:00,555 INFO L85 PathProgramCache]: Analyzing trace with hash 559818884, now seen corresponding path program 16 times [2022-01-18 01:08:00,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:00,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487012337] [2022-01-18 01:08:00,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:00,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:00,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:00,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487012337] [2022-01-18 01:08:00,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487012337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:00,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:00,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:00,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515581721] [2022-01-18 01:08:00,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:00,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:00,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:00,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:00,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:00,653 INFO L87 Difference]: Start difference. First operand 682 states and 1681 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:00,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:00,857 INFO L93 Difference]: Finished difference Result 1039 states and 2565 transitions. [2022-01-18 01:08:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:08:00,857 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:00,861 INFO L225 Difference]: With dead ends: 1039 [2022-01-18 01:08:00,861 INFO L226 Difference]: Without dead ends: 898 [2022-01-18 01:08:00,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:08:00,862 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 90 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 878 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 [2022-01-18 01:08:00,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 878 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:00,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-01-18 01:08:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 686. [2022-01-18 01:08:00,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.4642335766423358) internal successors, (1688), 685 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1688 transitions. [2022-01-18 01:08:00,876 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1688 transitions. Word has length 77 [2022-01-18 01:08:00,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:00,876 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 1688 transitions. [2022-01-18 01:08:00,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1688 transitions. [2022-01-18 01:08:00,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:00,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:00,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:00,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 01:08:00,878 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:00,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:00,878 INFO L85 PathProgramCache]: Analyzing trace with hash 272497886, now seen corresponding path program 17 times [2022-01-18 01:08:00,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:00,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136686893] [2022-01-18 01:08:00,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:00,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:00,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:00,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136686893] [2022-01-18 01:08:00,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136686893] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:00,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:00,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:00,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064294444] [2022-01-18 01:08:00,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:00,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:00,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:00,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:00,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:00,981 INFO L87 Difference]: Start difference. First operand 686 states and 1688 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:01,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:01,187 INFO L93 Difference]: Finished difference Result 1018 states and 2505 transitions. [2022-01-18 01:08:01,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:08:01,188 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:01,191 INFO L225 Difference]: With dead ends: 1018 [2022-01-18 01:08:01,191 INFO L226 Difference]: Without dead ends: 866 [2022-01-18 01:08:01,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:08:01,192 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 75 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 894 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 [2022-01-18 01:08:01,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 894 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:01,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-01-18 01:08:01,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 678. [2022-01-18 01:08:01,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 677 states have (on average 2.466765140324963) internal successors, (1670), 677 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:01,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1670 transitions. [2022-01-18 01:08:01,205 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1670 transitions. Word has length 77 [2022-01-18 01:08:01,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:01,205 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 1670 transitions. [2022-01-18 01:08:01,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:01,205 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1670 transitions. [2022-01-18 01:08:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:01,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:01,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:01,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 01:08:01,207 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:01,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:01,207 INFO L85 PathProgramCache]: Analyzing trace with hash 453229932, now seen corresponding path program 18 times [2022-01-18 01:08:01,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:01,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476162141] [2022-01-18 01:08:01,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:01,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:01,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:01,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:01,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476162141] [2022-01-18 01:08:01,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476162141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:01,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:01,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:01,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083556310] [2022-01-18 01:08:01,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:01,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:01,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:01,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:01,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:01,309 INFO L87 Difference]: Start difference. First operand 678 states and 1670 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:01,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:01,521 INFO L93 Difference]: Finished difference Result 1070 states and 2627 transitions. [2022-01-18 01:08:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 01:08:01,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:01,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:01,524 INFO L225 Difference]: With dead ends: 1070 [2022-01-18 01:08:01,524 INFO L226 Difference]: Without dead ends: 903 [2022-01-18 01:08:01,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:08:01,525 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 104 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:01,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 696 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:01,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-01-18 01:08:01,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 682. [2022-01-18 01:08:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 2.462555066079295) internal successors, (1677), 681 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1677 transitions. [2022-01-18 01:08:01,538 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1677 transitions. Word has length 77 [2022-01-18 01:08:01,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:01,538 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 1677 transitions. [2022-01-18 01:08:01,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1677 transitions. [2022-01-18 01:08:01,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:01,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:01,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:01,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 01:08:01,540 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:01,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:01,541 INFO L85 PathProgramCache]: Analyzing trace with hash -244539692, now seen corresponding path program 19 times [2022-01-18 01:08:01,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:01,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951666587] [2022-01-18 01:08:01,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:01,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:01,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:01,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951666587] [2022-01-18 01:08:01,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951666587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:01,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:01,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:01,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657487454] [2022-01-18 01:08:01,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:01,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:01,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:01,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:01,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:01,637 INFO L87 Difference]: Start difference. First operand 682 states and 1677 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:01,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:01,818 INFO L93 Difference]: Finished difference Result 1003 states and 2462 transitions. [2022-01-18 01:08:01,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:08:01,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:01,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:01,821 INFO L225 Difference]: With dead ends: 1003 [2022-01-18 01:08:01,821 INFO L226 Difference]: Without dead ends: 862 [2022-01-18 01:08:01,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 01:08:01,821 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 85 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:01,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 765 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:01,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2022-01-18 01:08:01,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 686. [2022-01-18 01:08:01,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 2.4583941605839414) internal successors, (1684), 685 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1684 transitions. [2022-01-18 01:08:01,833 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1684 transitions. Word has length 77 [2022-01-18 01:08:01,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:01,834 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 1684 transitions. [2022-01-18 01:08:01,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1684 transitions. [2022-01-18 01:08:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:01,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:01,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:01,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 01:08:01,836 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:01,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:01,836 INFO L85 PathProgramCache]: Analyzing trace with hash -531860690, now seen corresponding path program 20 times [2022-01-18 01:08:01,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:01,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023673012] [2022-01-18 01:08:01,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:01,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:01,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:01,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023673012] [2022-01-18 01:08:01,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023673012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:01,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:01,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:01,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911369754] [2022-01-18 01:08:01,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:01,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:01,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:01,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:01,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:01,928 INFO L87 Difference]: Start difference. First operand 686 states and 1684 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:02,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:02,142 INFO L93 Difference]: Finished difference Result 970 states and 2369 transitions. [2022-01-18 01:08:02,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:08:02,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:02,145 INFO L225 Difference]: With dead ends: 970 [2022-01-18 01:08:02,145 INFO L226 Difference]: Without dead ends: 776 [2022-01-18 01:08:02,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:08:02,146 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 76 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:02,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 855 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:02,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-01-18 01:08:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 636. [2022-01-18 01:08:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 2.467716535433071) internal successors, (1567), 635 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1567 transitions. [2022-01-18 01:08:02,159 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1567 transitions. Word has length 77 [2022-01-18 01:08:02,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:02,159 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 1567 transitions. [2022-01-18 01:08:02,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1567 transitions. [2022-01-18 01:08:02,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:02,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:02,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:02,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 01:08:02,161 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:02,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1649383172, now seen corresponding path program 1 times [2022-01-18 01:08:02,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:02,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620918734] [2022-01-18 01:08:02,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:02,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:02,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:02,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:02,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620918734] [2022-01-18 01:08:02,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620918734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:02,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:02,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:02,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583085721] [2022-01-18 01:08:02,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:02,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:02,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:02,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:02,269 INFO L87 Difference]: Start difference. First operand 636 states and 1567 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:02,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:02,566 INFO L93 Difference]: Finished difference Result 1078 states and 2577 transitions. [2022-01-18 01:08:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 01:08:02,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:02,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:02,568 INFO L225 Difference]: With dead ends: 1078 [2022-01-18 01:08:02,568 INFO L226 Difference]: Without dead ends: 882 [2022-01-18 01:08:02,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-01-18 01:08:02,569 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 203 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 900 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 [2022-01-18 01:08:02,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 900 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:02,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-01-18 01:08:02,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 644. [2022-01-18 01:08:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 2.4292379471228616) internal successors, (1562), 643 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:02,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1562 transitions. [2022-01-18 01:08:02,581 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1562 transitions. Word has length 77 [2022-01-18 01:08:02,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:02,582 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 1562 transitions. [2022-01-18 01:08:02,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:02,582 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1562 transitions. [2022-01-18 01:08:02,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:02,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:02,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:02,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 01:08:02,584 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:02,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:02,584 INFO L85 PathProgramCache]: Analyzing trace with hash 105388772, now seen corresponding path program 1 times [2022-01-18 01:08:02,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:02,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788064020] [2022-01-18 01:08:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:02,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:02,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:02,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788064020] [2022-01-18 01:08:02,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788064020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:02,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:02,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:08:02,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875553395] [2022-01-18 01:08:02,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:02,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:08:02,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:02,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:08:02,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:08:02,633 INFO L87 Difference]: Start difference. First operand 644 states and 1562 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:02,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:02,666 INFO L93 Difference]: Finished difference Result 914 states and 2154 transitions. [2022-01-18 01:08:02,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 01:08:02,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:02,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:02,668 INFO L225 Difference]: With dead ends: 914 [2022-01-18 01:08:02,668 INFO L226 Difference]: Without dead ends: 838 [2022-01-18 01:08:02,668 INFO L932 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 [2022-01-18 01:08:02,669 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 212 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:02,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 182 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:08:02,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-01-18 01:08:02,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 572. [2022-01-18 01:08:02,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 571 states have (on average 2.415061295971979) internal successors, (1379), 571 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1379 transitions. [2022-01-18 01:08:02,680 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1379 transitions. Word has length 77 [2022-01-18 01:08:02,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:02,681 INFO L470 AbstractCegarLoop]: Abstraction has 572 states and 1379 transitions. [2022-01-18 01:08:02,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:02,681 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1379 transitions. [2022-01-18 01:08:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:02,682 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:02,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:02,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 01:08:02,682 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:02,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:02,683 INFO L85 PathProgramCache]: Analyzing trace with hash -502217628, now seen corresponding path program 2 times [2022-01-18 01:08:02,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:02,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334464158] [2022-01-18 01:08:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:02,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:02,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:02,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:02,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334464158] [2022-01-18 01:08:02,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334464158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:02,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:02,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:02,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538343046] [2022-01-18 01:08:02,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:02,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:02,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:02,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:02,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:02,799 INFO L87 Difference]: Start difference. First operand 572 states and 1379 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:03,032 INFO L93 Difference]: Finished difference Result 942 states and 2274 transitions. [2022-01-18 01:08:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 01:08:03,032 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:03,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:03,034 INFO L225 Difference]: With dead ends: 942 [2022-01-18 01:08:03,034 INFO L226 Difference]: Without dead ends: 769 [2022-01-18 01:08:03,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 01:08:03,035 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 102 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:03,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 772 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:03,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2022-01-18 01:08:03,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 576. [2022-01-18 01:08:03,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 2.4104347826086956) internal successors, (1386), 575 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1386 transitions. [2022-01-18 01:08:03,045 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1386 transitions. Word has length 77 [2022-01-18 01:08:03,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:03,046 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 1386 transitions. [2022-01-18 01:08:03,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,046 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1386 transitions. [2022-01-18 01:08:03,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:03,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:03,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:03,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 01:08:03,048 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:03,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:03,048 INFO L85 PathProgramCache]: Analyzing trace with hash -115373572, now seen corresponding path program 3 times [2022-01-18 01:08:03,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:03,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743632188] [2022-01-18 01:08:03,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:03,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:03,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:03,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743632188] [2022-01-18 01:08:03,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743632188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:03,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:03,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:03,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026440248] [2022-01-18 01:08:03,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:03,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:03,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:03,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:03,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:03,131 INFO L87 Difference]: Start difference. First operand 576 states and 1386 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:03,293 INFO L93 Difference]: Finished difference Result 863 states and 2076 transitions. [2022-01-18 01:08:03,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 01:08:03,294 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:03,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:03,295 INFO L225 Difference]: With dead ends: 863 [2022-01-18 01:08:03,295 INFO L226 Difference]: Without dead ends: 716 [2022-01-18 01:08:03,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:08:03,296 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 78 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:03,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 743 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:03,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-01-18 01:08:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 580. [2022-01-18 01:08:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 2.4058721934369602) internal successors, (1393), 579 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1393 transitions. [2022-01-18 01:08:03,306 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1393 transitions. Word has length 77 [2022-01-18 01:08:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:03,306 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 1393 transitions. [2022-01-18 01:08:03,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,306 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1393 transitions. [2022-01-18 01:08:03,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:03,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:03,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:03,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 01:08:03,308 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:03,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:03,308 INFO L85 PathProgramCache]: Analyzing trace with hash 174595938, now seen corresponding path program 4 times [2022-01-18 01:08:03,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:03,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985927276] [2022-01-18 01:08:03,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:03,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:03,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:03,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985927276] [2022-01-18 01:08:03,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985927276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:03,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:03,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:03,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606640969] [2022-01-18 01:08:03,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:03,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:03,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:03,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:03,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:03,388 INFO L87 Difference]: Start difference. First operand 580 states and 1393 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:03,602 INFO L93 Difference]: Finished difference Result 842 states and 2016 transitions. [2022-01-18 01:08:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:08:03,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:03,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:03,608 INFO L225 Difference]: With dead ends: 842 [2022-01-18 01:08:03,608 INFO L226 Difference]: Without dead ends: 666 [2022-01-18 01:08:03,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:08:03,608 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 72 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:03,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 1066 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:03,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-01-18 01:08:03,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 554. [2022-01-18 01:08:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 2.4122965641952985) internal successors, (1334), 553 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1334 transitions. [2022-01-18 01:08:03,618 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1334 transitions. Word has length 77 [2022-01-18 01:08:03,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:03,619 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 1334 transitions. [2022-01-18 01:08:03,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,619 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1334 transitions. [2022-01-18 01:08:03,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:03,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:03,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:03,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 01:08:03,620 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:03,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:03,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1397865988, now seen corresponding path program 5 times [2022-01-18 01:08:03,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:03,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538753170] [2022-01-18 01:08:03,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:03,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:03,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:03,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538753170] [2022-01-18 01:08:03,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538753170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:03,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:03,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:03,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820606819] [2022-01-18 01:08:03,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:03,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:03,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:03,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:03,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:03,726 INFO L87 Difference]: Start difference. First operand 554 states and 1334 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:03,948 INFO L93 Difference]: Finished difference Result 925 states and 2243 transitions. [2022-01-18 01:08:03,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 01:08:03,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:03,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:03,950 INFO L225 Difference]: With dead ends: 925 [2022-01-18 01:08:03,950 INFO L226 Difference]: Without dead ends: 758 [2022-01-18 01:08:03,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:08:03,951 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 101 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:03,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 658 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:03,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-01-18 01:08:03,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 562. [2022-01-18 01:08:03,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 561 states have (on average 2.409982174688057) internal successors, (1352), 561 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1352 transitions. [2022-01-18 01:08:03,962 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1352 transitions. Word has length 77 [2022-01-18 01:08:03,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:03,962 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1352 transitions. [2022-01-18 01:08:03,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1352 transitions. [2022-01-18 01:08:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:03,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:03,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:03,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 01:08:03,964 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1730998722, now seen corresponding path program 6 times [2022-01-18 01:08:03,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:03,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285855529] [2022-01-18 01:08:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:03,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:04,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:04,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:04,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285855529] [2022-01-18 01:08:04,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285855529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:04,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:04,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:04,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853601833] [2022-01-18 01:08:04,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:04,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:04,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:04,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:04,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:04,067 INFO L87 Difference]: Start difference. First operand 562 states and 1352 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:04,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:04,282 INFO L93 Difference]: Finished difference Result 897 states and 2174 transitions. [2022-01-18 01:08:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:08:04,283 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:04,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:04,284 INFO L225 Difference]: With dead ends: 897 [2022-01-18 01:08:04,284 INFO L226 Difference]: Without dead ends: 750 [2022-01-18 01:08:04,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:08:04,285 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 80 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:04,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 780 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:04,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-01-18 01:08:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 566. [2022-01-18 01:08:04,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 2.405309734513274) internal successors, (1359), 565 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:04,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1359 transitions. [2022-01-18 01:08:04,295 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1359 transitions. Word has length 77 [2022-01-18 01:08:04,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:04,296 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 1359 transitions. [2022-01-18 01:08:04,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:04,296 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1359 transitions. [2022-01-18 01:08:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:04,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:04,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:04,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 01:08:04,297 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1443677724, now seen corresponding path program 7 times [2022-01-18 01:08:04,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:04,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134766007] [2022-01-18 01:08:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:04,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:04,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:04,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134766007] [2022-01-18 01:08:04,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134766007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:04,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:04,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:04,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28262455] [2022-01-18 01:08:04,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:04,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:04,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:04,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:04,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:04,390 INFO L87 Difference]: Start difference. First operand 566 states and 1359 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:04,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:04,598 INFO L93 Difference]: Finished difference Result 876 states and 2114 transitions. [2022-01-18 01:08:04,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:08:04,599 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:04,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:04,601 INFO L225 Difference]: With dead ends: 876 [2022-01-18 01:08:04,601 INFO L226 Difference]: Without dead ends: 718 [2022-01-18 01:08:04,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 01:08:04,602 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 75 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 803 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 [2022-01-18 01:08:04,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 803 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:04,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-01-18 01:08:04,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 558. [2022-01-18 01:08:04,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 557 states have (on average 2.40754039497307) internal successors, (1341), 557 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:04,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1341 transitions. [2022-01-18 01:08:04,614 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1341 transitions. Word has length 77 [2022-01-18 01:08:04,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:04,614 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 1341 transitions. [2022-01-18 01:08:04,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:04,615 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1341 transitions. [2022-01-18 01:08:04,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:04,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:04,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:04,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 01:08:04,616 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:04,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:04,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1624409770, now seen corresponding path program 8 times [2022-01-18 01:08:04,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:04,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420542377] [2022-01-18 01:08:04,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:04,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:04,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:04,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420542377] [2022-01-18 01:08:04,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420542377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:04,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:04,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:04,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051433510] [2022-01-18 01:08:04,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:04,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:04,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:04,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:04,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:04,720 INFO L87 Difference]: Start difference. First operand 558 states and 1341 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:04,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:04,951 INFO L93 Difference]: Finished difference Result 928 states and 2236 transitions. [2022-01-18 01:08:04,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 01:08:04,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:04,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:04,953 INFO L225 Difference]: With dead ends: 928 [2022-01-18 01:08:04,953 INFO L226 Difference]: Without dead ends: 755 [2022-01-18 01:08:04,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 01:08:04,954 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 110 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 834 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 [2022-01-18 01:08:04,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 834 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:04,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2022-01-18 01:08:04,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 562. [2022-01-18 01:08:04,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 561 states have (on average 2.4028520499108734) internal successors, (1348), 561 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1348 transitions. [2022-01-18 01:08:04,966 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1348 transitions. Word has length 77 [2022-01-18 01:08:04,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:04,966 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1348 transitions. [2022-01-18 01:08:04,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1348 transitions. [2022-01-18 01:08:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:04,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:04,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:04,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 01:08:04,969 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:04,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:04,969 INFO L85 PathProgramCache]: Analyzing trace with hash 926640146, now seen corresponding path program 9 times [2022-01-18 01:08:04,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:04,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074702054] [2022-01-18 01:08:04,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:04,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:05,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:05,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074702054] [2022-01-18 01:08:05,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074702054] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:05,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:05,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:05,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419368254] [2022-01-18 01:08:05,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:05,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:05,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:05,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:05,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:05,064 INFO L87 Difference]: Start difference. First operand 562 states and 1348 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:05,251 INFO L93 Difference]: Finished difference Result 861 states and 2071 transitions. [2022-01-18 01:08:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:08:05,251 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:05,253 INFO L225 Difference]: With dead ends: 861 [2022-01-18 01:08:05,253 INFO L226 Difference]: Without dead ends: 714 [2022-01-18 01:08:05,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:08:05,254 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 79 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:05,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 771 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:05,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-01-18 01:08:05,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 566. [2022-01-18 01:08:05,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 2.398230088495575) internal successors, (1355), 565 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1355 transitions. [2022-01-18 01:08:05,265 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 1355 transitions. Word has length 77 [2022-01-18 01:08:05,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:05,265 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 1355 transitions. [2022-01-18 01:08:05,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 1355 transitions. [2022-01-18 01:08:05,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:05,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:05,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:05,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 01:08:05,267 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:05,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:05,267 INFO L85 PathProgramCache]: Analyzing trace with hash 639319148, now seen corresponding path program 10 times [2022-01-18 01:08:05,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:05,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787974684] [2022-01-18 01:08:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:05,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:05,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:05,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:05,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787974684] [2022-01-18 01:08:05,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787974684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:05,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:05,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:05,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973815323] [2022-01-18 01:08:05,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:05,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:05,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:05,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:05,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:05,375 INFO L87 Difference]: Start difference. First operand 566 states and 1355 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:05,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:05,577 INFO L93 Difference]: Finished difference Result 828 states and 1978 transitions. [2022-01-18 01:08:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:08:05,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:05,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:05,579 INFO L225 Difference]: With dead ends: 828 [2022-01-18 01:08:05,579 INFO L226 Difference]: Without dead ends: 648 [2022-01-18 01:08:05,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:08:05,579 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 78 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 893 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 [2022-01-18 01:08:05,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 893 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:05,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2022-01-18 01:08:05,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 536. [2022-01-18 01:08:05,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.4093457943925234) internal successors, (1289), 535 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1289 transitions. [2022-01-18 01:08:05,591 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1289 transitions. Word has length 77 [2022-01-18 01:08:05,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:05,591 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1289 transitions. [2022-01-18 01:08:05,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1289 transitions. [2022-01-18 01:08:05,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:05,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:05,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:05,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 01:08:05,593 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:05,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash 300788800, now seen corresponding path program 11 times [2022-01-18 01:08:05,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:05,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906635246] [2022-01-18 01:08:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:05,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:05,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:05,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906635246] [2022-01-18 01:08:05,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906635246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:05,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:05,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:05,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102779280] [2022-01-18 01:08:05,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:05,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:05,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:05,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:05,697 INFO L87 Difference]: Start difference. First operand 536 states and 1289 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:05,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:05,946 INFO L93 Difference]: Finished difference Result 997 states and 2354 transitions. [2022-01-18 01:08:05,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 01:08:05,946 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:05,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:05,948 INFO L225 Difference]: With dead ends: 997 [2022-01-18 01:08:05,948 INFO L226 Difference]: Without dead ends: 770 [2022-01-18 01:08:05,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-01-18 01:08:05,949 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 207 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 849 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 [2022-01-18 01:08:05,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 849 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:05,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-01-18 01:08:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 532. [2022-01-18 01:08:05,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 2.354048964218456) internal successors, (1250), 531 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:05,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1250 transitions. [2022-01-18 01:08:05,959 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1250 transitions. Word has length 77 [2022-01-18 01:08:05,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:05,960 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 1250 transitions. [2022-01-18 01:08:05,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:05,960 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1250 transitions. [2022-01-18 01:08:05,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:05,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:05,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:05,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 01:08:05,961 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:05,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1578682278, now seen corresponding path program 12 times [2022-01-18 01:08:05,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:05,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298790204] [2022-01-18 01:08:05,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:05,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:06,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:06,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298790204] [2022-01-18 01:08:06,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298790204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:06,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:06,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:06,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978839736] [2022-01-18 01:08:06,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:06,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:06,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:06,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:06,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:06,045 INFO L87 Difference]: Start difference. First operand 532 states and 1250 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:06,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:06,305 INFO L93 Difference]: Finished difference Result 899 states and 2139 transitions. [2022-01-18 01:08:06,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 01:08:06,305 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:06,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:06,307 INFO L225 Difference]: With dead ends: 899 [2022-01-18 01:08:06,307 INFO L226 Difference]: Without dead ends: 732 [2022-01-18 01:08:06,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-01-18 01:08:06,308 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 121 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 934 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 [2022-01-18 01:08:06,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 934 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:06,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-01-18 01:08:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 536. [2022-01-18 01:08:06,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.349532710280374) internal successors, (1257), 535 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:06,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1257 transitions. [2022-01-18 01:08:06,322 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1257 transitions. Word has length 77 [2022-01-18 01:08:06,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:06,322 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1257 transitions. [2022-01-18 01:08:06,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1257 transitions. [2022-01-18 01:08:06,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:06,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:06,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:06,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 01:08:06,324 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:06,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1911815012, now seen corresponding path program 13 times [2022-01-18 01:08:06,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:06,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398573020] [2022-01-18 01:08:06,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:06,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:06,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:06,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398573020] [2022-01-18 01:08:06,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398573020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:06,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:06,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:06,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317291256] [2022-01-18 01:08:06,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:06,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:06,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:06,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:06,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:06,434 INFO L87 Difference]: Start difference. First operand 536 states and 1257 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:06,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:06,596 INFO L93 Difference]: Finished difference Result 843 states and 1993 transitions. [2022-01-18 01:08:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:08:06,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:06,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:06,600 INFO L225 Difference]: With dead ends: 843 [2022-01-18 01:08:06,600 INFO L226 Difference]: Without dead ends: 696 [2022-01-18 01:08:06,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:08:06,602 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 89 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:06,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 713 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:06,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-01-18 01:08:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 540. [2022-01-18 01:08:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 2.345083487940631) internal successors, (1264), 539 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:06,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1264 transitions. [2022-01-18 01:08:06,614 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1264 transitions. Word has length 77 [2022-01-18 01:08:06,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:06,614 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 1264 transitions. [2022-01-18 01:08:06,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:06,614 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1264 transitions. [2022-01-18 01:08:06,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:06,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:06,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:06,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 01:08:06,616 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:06,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:06,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1624494014, now seen corresponding path program 14 times [2022-01-18 01:08:06,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:06,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164548222] [2022-01-18 01:08:06,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:06,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:06,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:06,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:06,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164548222] [2022-01-18 01:08:06,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164548222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:06,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:06,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:06,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511306878] [2022-01-18 01:08:06,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:06,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:06,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:06,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:06,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:06,697 INFO L87 Difference]: Start difference. First operand 540 states and 1264 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:06,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:06,898 INFO L93 Difference]: Finished difference Result 814 states and 1911 transitions. [2022-01-18 01:08:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 01:08:06,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:06,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:06,900 INFO L225 Difference]: With dead ends: 814 [2022-01-18 01:08:06,900 INFO L226 Difference]: Without dead ends: 644 [2022-01-18 01:08:06,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:08:06,900 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 80 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:06,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 976 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:06,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-01-18 01:08:06,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 520. [2022-01-18 01:08:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 519 states have (on average 2.3371868978805397) internal successors, (1213), 519 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 1213 transitions. [2022-01-18 01:08:06,909 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 1213 transitions. Word has length 77 [2022-01-18 01:08:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:06,909 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 1213 transitions. [2022-01-18 01:08:06,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 1213 transitions. [2022-01-18 01:08:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:06,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:06,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:06,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 01:08:06,911 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:06,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash 174466916, now seen corresponding path program 15 times [2022-01-18 01:08:06,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:06,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226373515] [2022-01-18 01:08:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:06,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:07,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:07,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226373515] [2022-01-18 01:08:07,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226373515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:07,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:07,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:07,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587128985] [2022-01-18 01:08:07,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:07,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:07,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:07,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:07,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:07,018 INFO L87 Difference]: Start difference. First operand 520 states and 1213 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:07,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:07,266 INFO L93 Difference]: Finished difference Result 903 states and 2146 transitions. [2022-01-18 01:08:07,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 01:08:07,266 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:07,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:07,267 INFO L225 Difference]: With dead ends: 903 [2022-01-18 01:08:07,267 INFO L226 Difference]: Without dead ends: 736 [2022-01-18 01:08:07,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 01:08:07,268 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:07,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 876 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:07,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-01-18 01:08:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 528. [2022-01-18 01:08:07,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 2.3358633776091082) internal successors, (1231), 527 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1231 transitions. [2022-01-18 01:08:07,304 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1231 transitions. Word has length 77 [2022-01-18 01:08:07,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:07,304 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1231 transitions. [2022-01-18 01:08:07,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:07,304 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1231 transitions. [2022-01-18 01:08:07,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:07,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:07,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:07,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 01:08:07,306 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:07,306 INFO L85 PathProgramCache]: Analyzing trace with hash 507599650, now seen corresponding path program 16 times [2022-01-18 01:08:07,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:07,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800441224] [2022-01-18 01:08:07,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:07,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:07,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:07,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800441224] [2022-01-18 01:08:07,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800441224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:07,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:07,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:07,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068391554] [2022-01-18 01:08:07,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:07,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:07,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:07,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:07,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:07,391 INFO L87 Difference]: Start difference. First operand 528 states and 1231 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:07,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:07,598 INFO L93 Difference]: Finished difference Result 875 states and 2077 transitions. [2022-01-18 01:08:07,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:08:07,599 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:07,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:07,600 INFO L225 Difference]: With dead ends: 875 [2022-01-18 01:08:07,600 INFO L226 Difference]: Without dead ends: 728 [2022-01-18 01:08:07,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:08:07,601 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 87 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:07,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 931 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:07,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-01-18 01:08:07,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 532. [2022-01-18 01:08:07,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 2.3314500941619585) internal successors, (1238), 531 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:07,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1238 transitions. [2022-01-18 01:08:07,611 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1238 transitions. Word has length 77 [2022-01-18 01:08:07,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:07,611 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 1238 transitions. [2022-01-18 01:08:07,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:07,611 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1238 transitions. [2022-01-18 01:08:07,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:07,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:07,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:07,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 01:08:07,613 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:07,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:07,613 INFO L85 PathProgramCache]: Analyzing trace with hash 220278652, now seen corresponding path program 17 times [2022-01-18 01:08:07,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:07,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298475602] [2022-01-18 01:08:07,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:07,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:07,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:07,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298475602] [2022-01-18 01:08:07,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298475602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:07,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:07,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:07,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789131620] [2022-01-18 01:08:07,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:07,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:07,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:07,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:07,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:07,709 INFO L87 Difference]: Start difference. First operand 532 states and 1238 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:07,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:07,915 INFO L93 Difference]: Finished difference Result 854 states and 2017 transitions. [2022-01-18 01:08:07,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:08:07,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:07,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:07,917 INFO L225 Difference]: With dead ends: 854 [2022-01-18 01:08:07,917 INFO L226 Difference]: Without dead ends: 696 [2022-01-18 01:08:07,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:08:07,918 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 73 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 944 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 [2022-01-18 01:08:07,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 944 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:07,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-01-18 01:08:07,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 524. [2022-01-18 01:08:07,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 523 states have (on average 2.332695984703633) internal successors, (1220), 523 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:07,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1220 transitions. [2022-01-18 01:08:07,927 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1220 transitions. Word has length 77 [2022-01-18 01:08:07,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:07,927 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 1220 transitions. [2022-01-18 01:08:07,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:07,927 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1220 transitions. [2022-01-18 01:08:07,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:07,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:07,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:07,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 01:08:07,928 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:07,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:07,929 INFO L85 PathProgramCache]: Analyzing trace with hash 401010698, now seen corresponding path program 18 times [2022-01-18 01:08:07,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:07,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921057639] [2022-01-18 01:08:07,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:07,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:08,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:08,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921057639] [2022-01-18 01:08:08,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921057639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:08,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:08,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:08,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436978710] [2022-01-18 01:08:08,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:08,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:08,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:08,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:08,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:08,021 INFO L87 Difference]: Start difference. First operand 524 states and 1220 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:08,224 INFO L93 Difference]: Finished difference Result 906 states and 2139 transitions. [2022-01-18 01:08:08,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 01:08:08,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:08,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:08,226 INFO L225 Difference]: With dead ends: 906 [2022-01-18 01:08:08,226 INFO L226 Difference]: Without dead ends: 733 [2022-01-18 01:08:08,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 01:08:08,227 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:08,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 792 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:08,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-01-18 01:08:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 528. [2022-01-18 01:08:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 2.3282732447817835) internal successors, (1227), 527 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1227 transitions. [2022-01-18 01:08:08,236 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1227 transitions. Word has length 77 [2022-01-18 01:08:08,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:08,236 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1227 transitions. [2022-01-18 01:08:08,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,236 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1227 transitions. [2022-01-18 01:08:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:08,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:08,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:08,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 01:08:08,237 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:08,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:08,238 INFO L85 PathProgramCache]: Analyzing trace with hash -296758926, now seen corresponding path program 19 times [2022-01-18 01:08:08,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:08,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580495627] [2022-01-18 01:08:08,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:08,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:08,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:08,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:08,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580495627] [2022-01-18 01:08:08,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580495627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:08,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:08,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:08,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031135584] [2022-01-18 01:08:08,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:08,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:08,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:08,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:08,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:08,325 INFO L87 Difference]: Start difference. First operand 528 states and 1227 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:08,511 INFO L93 Difference]: Finished difference Result 839 states and 1974 transitions. [2022-01-18 01:08:08,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:08:08,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:08,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:08,512 INFO L225 Difference]: With dead ends: 839 [2022-01-18 01:08:08,513 INFO L226 Difference]: Without dead ends: 692 [2022-01-18 01:08:08,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:08:08,513 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 86 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 856 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 [2022-01-18 01:08:08,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 856 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:08,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-01-18 01:08:08,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 532. [2022-01-18 01:08:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 2.3239171374764593) internal successors, (1234), 531 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1234 transitions. [2022-01-18 01:08:08,522 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1234 transitions. Word has length 77 [2022-01-18 01:08:08,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:08,523 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 1234 transitions. [2022-01-18 01:08:08,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,523 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1234 transitions. [2022-01-18 01:08:08,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:08,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:08,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:08,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 01:08:08,524 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:08,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:08,524 INFO L85 PathProgramCache]: Analyzing trace with hash -584079924, now seen corresponding path program 20 times [2022-01-18 01:08:08,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:08,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088913855] [2022-01-18 01:08:08,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:08,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:08,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:08,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088913855] [2022-01-18 01:08:08,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088913855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:08,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:08,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:08:08,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965486189] [2022-01-18 01:08:08,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:08,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:08:08,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:08,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:08:08,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:08:08,613 INFO L87 Difference]: Start difference. First operand 532 states and 1234 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:08,825 INFO L93 Difference]: Finished difference Result 806 states and 1881 transitions. [2022-01-18 01:08:08,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:08:08,826 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:08,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:08,827 INFO L225 Difference]: With dead ends: 806 [2022-01-18 01:08:08,827 INFO L226 Difference]: Without dead ends: 606 [2022-01-18 01:08:08,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:08:08,828 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 76 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:08,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 793 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:08:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-01-18 01:08:08,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 482. [2022-01-18 01:08:08,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 2.322245322245322) internal successors, (1117), 481 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1117 transitions. [2022-01-18 01:08:08,838 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1117 transitions. Word has length 77 [2022-01-18 01:08:08,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:08,838 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 1117 transitions. [2022-01-18 01:08:08,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1117 transitions. [2022-01-18 01:08:08,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:08,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:08,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:08,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 01:08:08,840 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:08,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:08,840 INFO L85 PathProgramCache]: Analyzing trace with hash -285934182, now seen corresponding path program 2 times [2022-01-18 01:08:08,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:08,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616028792] [2022-01-18 01:08:08,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:08,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:08,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:08,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616028792] [2022-01-18 01:08:08,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616028792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:08,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:08,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 01:08:08,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381671263] [2022-01-18 01:08:08,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:08,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 01:08:08,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:08,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 01:08:08,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 01:08:08,878 INFO L87 Difference]: Start difference. First operand 482 states and 1117 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:08,896 INFO L93 Difference]: Finished difference Result 419 states and 922 transitions. [2022-01-18 01:08:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 01:08:08,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:08,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:08,898 INFO L225 Difference]: With dead ends: 419 [2022-01-18 01:08:08,898 INFO L226 Difference]: Without dead ends: 387 [2022-01-18 01:08:08,898 INFO L932 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 [2022-01-18 01:08:08,900 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 64 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:08,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 144 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:08:08,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-01-18 01:08:08,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2022-01-18 01:08:08,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 2.243523316062176) internal successors, (866), 386 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 866 transitions. [2022-01-18 01:08:08,906 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 866 transitions. Word has length 77 [2022-01-18 01:08:08,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:08,906 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 866 transitions. [2022-01-18 01:08:08,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,906 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 866 transitions. [2022-01-18 01:08:08,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-18 01:08:08,907 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:08:08,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:08:08,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 01:08:08,907 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:08:08,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:08:08,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2078515196, now seen corresponding path program 2 times [2022-01-18 01:08:08,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:08:08,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242729649] [2022-01-18 01:08:08,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:08:08,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:08:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:08:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:08:08,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:08:08,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242729649] [2022-01-18 01:08:08,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242729649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:08:08,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:08:08,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 01:08:08,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271795592] [2022-01-18 01:08:08,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:08:08,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 01:08:08,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:08:08,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 01:08:08,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 01:08:08,948 INFO L87 Difference]: Start difference. First operand 387 states and 866 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:08:08,960 INFO L93 Difference]: Finished difference Result 86 states and 128 transitions. [2022-01-18 01:08:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 01:08:08,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-18 01:08:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:08:08,961 INFO L225 Difference]: With dead ends: 86 [2022-01-18 01:08:08,961 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 01:08:08,961 INFO L932 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 [2022-01-18 01:08:08,961 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 23 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:08:08,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 90 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:08:08,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 01:08:08,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 01:08:08,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 01:08:08,962 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2022-01-18 01:08:08,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:08:08,962 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 01:08:08,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:08:08,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 01:08:08,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 01:08:08,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 01:08:08,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 01:08:08,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 01:08:08,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 01:08:08,968 INFO L732 BasicCegarLoop]: Path program histogram: [20, 20, 2, 2, 1, 1, 1] [2022-01-18 01:08:08,969 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 01:08:08,969 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 01:08:08,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:08:08 BasicIcfg [2022-01-18 01:08:08,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 01:08:08,973 INFO L158 Benchmark]: Toolchain (without parser) took 16386.21ms. Allocated memory was 398.5MB in the beginning and 597.7MB in the end (delta: 199.2MB). Free memory was 345.4MB in the beginning and 340.0MB in the end (delta: 5.4MB). Peak memory consumption was 205.7MB. Max. memory is 16.0GB. [2022-01-18 01:08:08,973 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 398.5MB. Free memory was 361.8MB in the beginning and 361.7MB in the end (delta: 80.4kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 01:08:08,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.69ms. Allocated memory is still 398.5MB. Free memory was 345.3MB in the beginning and 371.7MB in the end (delta: -26.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.0GB. [2022-01-18 01:08:08,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.38ms. Allocated memory is still 398.5MB. Free memory was 371.4MB in the beginning and 369.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:08:08,973 INFO L158 Benchmark]: Boogie Preprocessor took 30.82ms. Allocated memory is still 398.5MB. Free memory was 369.9MB in the beginning and 368.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:08:08,973 INFO L158 Benchmark]: RCFGBuilder took 313.15ms. Allocated memory is still 398.5MB. Free memory was 368.6MB in the beginning and 357.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 01:08:08,973 INFO L158 Benchmark]: TraceAbstraction took 15792.67ms. Allocated memory was 398.5MB in the beginning and 597.7MB in the end (delta: 199.2MB). Free memory was 356.3MB in the beginning and 340.0MB in the end (delta: 16.3MB). Peak memory consumption was 215.9MB. Max. memory is 16.0GB. [2022-01-18 01:08:08,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 398.5MB. Free memory was 361.8MB in the beginning and 361.7MB in the end (delta: 80.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 214.69ms. Allocated memory is still 398.5MB. Free memory was 345.3MB in the beginning and 371.7MB in the end (delta: -26.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 30.38ms. Allocated memory is still 398.5MB. Free memory was 371.4MB in the beginning and 369.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.82ms. Allocated memory is still 398.5MB. Free memory was 369.9MB in the beginning and 368.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 313.15ms. Allocated memory is still 398.5MB. Free memory was 368.6MB in the beginning and 357.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 15792.67ms. Allocated memory was 398.5MB in the beginning and 597.7MB in the end (delta: 199.2MB). Free memory was 356.3MB in the beginning and 340.0MB in the end (delta: 16.3MB). Peak memory consumption was 215.9MB. Max. memory is 16.0GB. * 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 - PositiveResult [Line: 69]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 122 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 47, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 0.1s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4769 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4769 mSDsluCounter, 34947 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30566 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7087 IncrementalHoareTripleChecker+Invalid, 7124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 5864 mSDtfsCounter, 7087 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1029 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 869 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3583 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=814occurred in iteration=1, InterpolantAutomatonStates: 801, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 47 MinimizatonAttempts, 8907 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 3611 NumberOfCodeBlocks, 3611 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 3564 ConstructedInterpolants, 0 QuantifiedInterpolants, 15718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 01:08:09,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...