/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:30:54,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:30:54,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:30:54,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:30:54,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:30:54,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:30:54,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:30:54,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:30:54,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:30:54,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:30:54,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:30:54,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:30:54,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:30:54,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:30:54,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:30:54,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:30:54,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:30:54,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:30:54,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:30:54,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:30:54,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:30:54,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:30:54,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:30:54,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:30:54,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:30:54,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:30:54,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:30:54,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:30:54,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:30:54,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:30:54,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:30:54,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:30:54,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:30:54,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:30:54,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:30:54,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:30:54,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:30:54,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:30:54,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:30:54,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:30:54,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:30:54,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 10:30:54,500 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:30:54,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:30:54,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:30:54,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:30:54,503 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:30:54,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:30:54,504 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:30:54,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:30:54,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:30:54,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:30:54,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:30:54,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:30:54,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:30:54,506 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:30:54,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:30:54,507 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:30:54,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:30:54,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:30:54,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:30:54,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:30:54,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:30:54,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:30:54,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:30:54,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:30:54,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:30:54,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:30:54,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:30:54,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:30:54,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:30:54,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:30:54,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:30:54,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:30:54,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:30:54,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:30:54,810 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:30:54,810 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-10-13 10:30:54,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b713dae5/d93d020272124b4b872c52c1e78e8f0f/FLAG647efc42e [2020-10-13 10:30:55,409 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:30:55,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-10-13 10:30:55,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b713dae5/d93d020272124b4b872c52c1e78e8f0f/FLAG647efc42e [2020-10-13 10:30:55,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b713dae5/d93d020272124b4b872c52c1e78e8f0f [2020-10-13 10:30:55,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:30:55,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:30:55,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:30:55,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:30:55,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:30:55,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:55" (1/1) ... [2020-10-13 10:30:55,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f3a35a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:55, skipping insertion in model container [2020-10-13 10:30:55,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:55" (1/1) ... [2020-10-13 10:30:55,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:30:55,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:30:56,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:30:56,154 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:30:56,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:30:56,280 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:30:56,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56 WrapperNode [2020-10-13 10:30:56,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:30:56,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:30:56,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:30:56,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:30:56,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56" (1/1) ... [2020-10-13 10:30:56,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56" (1/1) ... [2020-10-13 10:30:56,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56" (1/1) ... [2020-10-13 10:30:56,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56" (1/1) ... [2020-10-13 10:30:56,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56" (1/1) ... [2020-10-13 10:30:56,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56" (1/1) ... [2020-10-13 10:30:56,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56" (1/1) ... [2020-10-13 10:30:56,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:30:56,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:30:56,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:30:56,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:30:56,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:30:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:30:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:30:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-13 10:30:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-13 10:30:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 10:30:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 10:30:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-13 10:30:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-13 10:30:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-13 10:30:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-13 10:30:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-13 10:30:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-13 10:30:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-13 10:30:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-13 10:30:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-13 10:30:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-13 10:30:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-13 10:30:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-13 10:30:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-13 10:30:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 10:30:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-13 10:30:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 10:30:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 10:30:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-13 10:30:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:30:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-13 10:30:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-13 10:30:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-13 10:30:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-13 10:30:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-13 10:30:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-13 10:30:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-13 10:30:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-13 10:30:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-13 10:30:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-13 10:30:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-13 10:30:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-13 10:30:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-13 10:30:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-13 10:30:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-13 10:30:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-13 10:30:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-13 10:30:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-13 10:30:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-13 10:30:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-13 10:30:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-13 10:30:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-13 10:30:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-13 10:30:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-13 10:30:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-13 10:30:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-13 10:30:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-13 10:30:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-13 10:30:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-13 10:30:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-13 10:30:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-13 10:30:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-13 10:30:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-13 10:30:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-13 10:30:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-13 10:30:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-13 10:30:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-13 10:30:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-13 10:30:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-13 10:30:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-13 10:30:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-13 10:30:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-13 10:30:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-13 10:30:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-13 10:30:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-13 10:30:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-13 10:30:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-13 10:30:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-13 10:30:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-13 10:30:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-13 10:30:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-13 10:30:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-13 10:30:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 10:30:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 10:30:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-13 10:30:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 10:30:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-13 10:30:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-13 10:30:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-13 10:30:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-13 10:30:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:30:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-13 10:30:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-13 10:30:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 10:30:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-13 10:30:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-13 10:30:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-13 10:30:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-13 10:30:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-13 10:30:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-13 10:30:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-13 10:30:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-13 10:30:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-13 10:30:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-13 10:30:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-13 10:30:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-13 10:30:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-13 10:30:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-13 10:30:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-13 10:30:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-13 10:30:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-13 10:30:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-13 10:30:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-13 10:30:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-13 10:30:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-13 10:30:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-13 10:30:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-13 10:30:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-13 10:30:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-13 10:30:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-13 10:30:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-13 10:30:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-13 10:30:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-13 10:30:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-13 10:30:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-13 10:30:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-13 10:30:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-13 10:30:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-13 10:30:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-13 10:30:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-13 10:30:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-13 10:30:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-13 10:30:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:30:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 10:30:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 10:30:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 10:30:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 10:30:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-13 10:30:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-13 10:30:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 10:30:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-13 10:30:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-13 10:30:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-13 10:30:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 10:30:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-13 10:30:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-13 10:30:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-13 10:30:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-13 10:30:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-13 10:30:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-13 10:30:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-13 10:30:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-13 10:30:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:30:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 10:30:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-13 10:30:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 10:30:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 10:30:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-13 10:30:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:30:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:30:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:30:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 10:30:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:30:57,125 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:30:57,125 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-13 10:30:57,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:57 BoogieIcfgContainer [2020-10-13 10:30:57,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:30:57,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:30:57,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:30:57,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:30:57,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:30:55" (1/3) ... [2020-10-13 10:30:57,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f3949c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:57, skipping insertion in model container [2020-10-13 10:30:57,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:56" (2/3) ... [2020-10-13 10:30:57,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f3949c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:57, skipping insertion in model container [2020-10-13 10:30:57,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:57" (3/3) ... [2020-10-13 10:30:57,140 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-10-13 10:30:57,150 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:30:57,159 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-13 10:30:57,173 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-13 10:30:57,196 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:30:57,196 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:30:57,196 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:30:57,197 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:30:57,197 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:30:57,197 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:30:57,197 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:30:57,197 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:30:57,220 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2020-10-13 10:30:57,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-13 10:30:57,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:30:57,229 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:30:57,230 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:30:57,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:30:57,253 INFO L82 PathProgramCache]: Analyzing trace with hash -326397870, now seen corresponding path program 1 times [2020-10-13 10:30:57,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:30:57,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691987647] [2020-10-13 10:30:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:30:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:57,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:57,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 10:30:57,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:30:57,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-13 10:30:57,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 10:30:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:30:57,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:30:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:57,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:57,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:30:57,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:57,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:30:57,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:57,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:57,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:57,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:57,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:30:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:57,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:57,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 10:30:57,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:57,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:30:57,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:57,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:57,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:57,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:57,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:30:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:57,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:57,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:30:57,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:57,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:30:57,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 10:30:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:57,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:57,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:30:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:57,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:57,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:30:57,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:57,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:30:57,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:30:57,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:57,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:57,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 10:30:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:57,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:57,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:30:57,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:30:57,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 10:30:57,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:30:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:57,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:57,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:30:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:57,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:57,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:30:57,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:30:57,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:30:57,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:57,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:57,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:30:57,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:57,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:57,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 10:30:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:57,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:57,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:57,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:30:57,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:57,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:30:57,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:57,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 10:30:57,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:57,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:57,996 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-13 10:30:57,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691987647] [2020-10-13 10:30:57,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:30:57,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-13 10:30:58,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487455012] [2020-10-13 10:30:58,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:30:58,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:30:58,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:30:58,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:30:58,025 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 4 states. [2020-10-13 10:30:58,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:30:58,435 INFO L93 Difference]: Finished difference Result 217 states and 268 transitions. [2020-10-13 10:30:58,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 10:30:58,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-13 10:30:58,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:30:58,451 INFO L225 Difference]: With dead ends: 217 [2020-10-13 10:30:58,451 INFO L226 Difference]: Without dead ends: 111 [2020-10-13 10:30:58,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:30:58,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-13 10:30:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 98. [2020-10-13 10:30:58,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-13 10:30:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2020-10-13 10:30:58,525 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 42 [2020-10-13 10:30:58,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:30:58,526 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2020-10-13 10:30:58,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:30:58,526 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2020-10-13 10:30:58,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-13 10:30:58,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:30:58,529 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:30:58,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:30:58,530 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:30:58,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:30:58,531 INFO L82 PathProgramCache]: Analyzing trace with hash -934339182, now seen corresponding path program 1 times [2020-10-13 10:30:58,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:30:58,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833728778] [2020-10-13 10:30:58,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:30:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:58,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:58,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:58,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 10:30:58,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:58,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 10:30:58,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:58,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:30:58,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 10:30:58,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:30:58,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:30:58,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:30:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:58,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:58,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:58,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:30:58,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:58,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:30:58,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:58,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:58,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:30:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:58,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:58,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:58,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 10:30:58,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:30:58,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:58,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:58,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:30:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:58,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:58,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:58,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:30:58,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:30:58,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:58,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:30:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:58,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:58,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:58,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:30:58,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:58,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:30:58,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:58,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:58,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:58,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 10:30:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:58,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:58,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:58,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:30:58,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:30:58,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:58,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:58,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:58,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:30:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:58,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:58,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:58,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:30:58,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:58,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:30:58,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:58,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:58,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 10:30:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:58,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:58,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:58,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:30:58,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:58,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 10:30:58,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:30:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:30:58,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 10:30:58,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833728778] [2020-10-13 10:30:58,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:30:58,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 10:30:58,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430236222] [2020-10-13 10:30:58,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 10:30:58,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:30:58,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 10:30:58,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:30:58,852 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand 6 states. [2020-10-13 10:30:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:30:59,229 INFO L93 Difference]: Finished difference Result 117 states and 134 transitions. [2020-10-13 10:30:59,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 10:30:59,229 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-10-13 10:30:59,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:30:59,232 INFO L225 Difference]: With dead ends: 117 [2020-10-13 10:30:59,232 INFO L226 Difference]: Without dead ends: 115 [2020-10-13 10:30:59,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:30:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-13 10:30:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102. [2020-10-13 10:30:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-13 10:30:59,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2020-10-13 10:30:59,251 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 42 [2020-10-13 10:30:59,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:30:59,252 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2020-10-13 10:30:59,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 10:30:59,252 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2020-10-13 10:30:59,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-13 10:30:59,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:30:59,254 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:30:59,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:30:59,254 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:30:59,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:30:59,254 INFO L82 PathProgramCache]: Analyzing trace with hash 640264123, now seen corresponding path program 1 times [2020-10-13 10:30:59,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:30:59,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752228050] [2020-10-13 10:30:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:30:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:59,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:59,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:59,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 10:30:59,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:59,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-13 10:30:59,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:30:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:30:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 10:30:59,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:59,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:30:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:59,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:59,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:59,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:30:59,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:59,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:30:59,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:30:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:30:59,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:30:59,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:30:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:59,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:59,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:59,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 10:30:59,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:30:59,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:30:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 10:30:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:59,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:30:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:59,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:59,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:30:59,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:59,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 10:30:59,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:30:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 10:30:59,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:59,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:30:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:59,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:59,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:30:59,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:59,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:30:59,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:59,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:59,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:59,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:59,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:59,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 10:30:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:59,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:59,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:59,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:30:59,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:59,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:30:59,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:59,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:30:59,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:59,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 10:30:59,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:59,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:30:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:59,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:59,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:59,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:30:59,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:59,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:30:59,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:30:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:30:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:59,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 10:30:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:59,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:59,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:59,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:30:59,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:59,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 10:30:59,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:30:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:30:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:30:59,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 10:30:59,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752228050] [2020-10-13 10:30:59,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:30:59,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:30:59,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818054930] [2020-10-13 10:30:59,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:30:59,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:30:59,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:30:59,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:30:59,714 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand 7 states. [2020-10-13 10:31:00,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:31:00,714 INFO L93 Difference]: Finished difference Result 288 states and 346 transitions. [2020-10-13 10:31:00,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 10:31:00,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2020-10-13 10:31:00,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:31:00,718 INFO L225 Difference]: With dead ends: 288 [2020-10-13 10:31:00,718 INFO L226 Difference]: Without dead ends: 200 [2020-10-13 10:31:00,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-13 10:31:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-13 10:31:00,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 163. [2020-10-13 10:31:00,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-13 10:31:00,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 194 transitions. [2020-10-13 10:31:00,748 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 194 transitions. Word has length 42 [2020-10-13 10:31:00,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:31:00,749 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 194 transitions. [2020-10-13 10:31:00,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:31:00,749 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 194 transitions. [2020-10-13 10:31:00,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 10:31:00,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:31:00,756 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:31:00,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:31:00,757 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:31:00,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:31:00,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1149911364, now seen corresponding path program 1 times [2020-10-13 10:31:00,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:31:00,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241441256] [2020-10-13 10:31:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:31:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:00,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:00,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 10:31:01,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:31:01,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-13 10:31:01,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:31:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 10:31:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:31:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:31:01,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:31:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:31:01,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:31:01,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:31:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 10:31:01,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:31:01,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:31:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:31:01,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:31:01,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:31:01,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:31:01,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 10:31:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:31:01,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:31:01,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:31:01,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:31:01,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:31:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:31:01,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:31:01,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 10:31:01,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:01,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:31:01,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:31:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 10:31:01,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:31:01,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 10:31:01,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:01,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:31:01,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 10:31:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:31:01,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 10:31:01,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:31:01,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 10:31:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:31:01,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:01,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:31:01,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:01,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:31:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 10:31:01,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:31:01,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:31:01,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 10:31:01,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:31:01,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:31:01,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:01,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:31:01,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 10:31:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:31:01,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:31:01,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 10:31:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:01,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:01,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:01,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:01,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:01,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:31:01,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:01,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:01,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 10:31:01,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:01,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:31:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-10-13 10:31:01,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241441256] [2020-10-13 10:31:01,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:31:01,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 10:31:01,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462943671] [2020-10-13 10:31:01,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:31:01,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:31:01,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:31:01,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:31:01,784 INFO L87 Difference]: Start difference. First operand 163 states and 194 transitions. Second operand 7 states. [2020-10-13 10:31:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:31:02,300 INFO L93 Difference]: Finished difference Result 296 states and 353 transitions. [2020-10-13 10:31:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 10:31:02,301 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-13 10:31:02,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:31:02,303 INFO L225 Difference]: With dead ends: 296 [2020-10-13 10:31:02,303 INFO L226 Difference]: Without dead ends: 171 [2020-10-13 10:31:02,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:31:02,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-13 10:31:02,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2020-10-13 10:31:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-13 10:31:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 200 transitions. [2020-10-13 10:31:02,325 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 200 transitions. Word has length 90 [2020-10-13 10:31:02,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:31:02,326 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 200 transitions. [2020-10-13 10:31:02,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:31:02,326 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 200 transitions. [2020-10-13 10:31:02,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 10:31:02,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:31:02,328 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:31:02,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:31:02,329 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:31:02,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:31:02,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1610969230, now seen corresponding path program 1 times [2020-10-13 10:31:02,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:31:02,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093144148] [2020-10-13 10:31:02,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:31:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:02,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:02,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:02,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:02,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:06,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:06,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 10:31:07,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 10:31:07,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 10:31:07,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:31:07,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 10:31:07,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 10:31:07,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:31:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:31:07,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:31:07,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:31:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 10:31:07,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:31:07,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:31:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:31:07,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:31:07,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:31:07,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:31:07,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:31:07,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 10:31:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:31:07,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:31:07,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:31:07,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:31:07,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:31:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:31:07,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:31:07,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 10:31:07,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:07,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:31:07,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:31:07,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:31:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 10:31:07,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:31:07,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:07,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:31:07,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:07,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:07,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 10:31:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 10:31:07,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 10:31:07,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:31:07,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 10:31:07,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 10:31:07,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:07,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:31:07,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:31:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:31:07,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:07,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:31:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 10:31:07,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 10:31:07,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:31:07,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:31:07,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 10:31:07,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:31:07,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:31:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:07,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:07,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:07,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:07,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:07,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 10:31:07,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:07,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:31:07,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:31:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:31:07,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:31:08,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 10:31:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:31:08,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:31:08,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:31:08,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:31:08,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:31:08,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:31:08,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:31:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:31:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 10:31:08,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:31:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:31:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 24 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-13 10:31:08,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093144148] [2020-10-13 10:31:08,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:31:08,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 10:31:08,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035408213] [2020-10-13 10:31:08,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 10:31:08,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:31:08,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 10:31:08,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:31:08,032 INFO L87 Difference]: Start difference. First operand 169 states and 200 transitions. Second operand 12 states. [2020-10-13 10:31:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:31:10,033 INFO L93 Difference]: Finished difference Result 411 states and 497 transitions. [2020-10-13 10:31:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 10:31:10,034 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-10-13 10:31:10,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:31:10,037 INFO L225 Difference]: With dead ends: 411 [2020-10-13 10:31:10,037 INFO L226 Difference]: Without dead ends: 217 [2020-10-13 10:31:10,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2020-10-13 10:31:10,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-13 10:31:10,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 186. [2020-10-13 10:31:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-13 10:31:10,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 217 transitions. [2020-10-13 10:31:10,061 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 217 transitions. Word has length 90 [2020-10-13 10:31:10,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:31:10,062 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 217 transitions. [2020-10-13 10:31:10,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 10:31:10,062 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 217 transitions. [2020-10-13 10:31:10,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 10:31:10,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:31:10,064 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:31:10,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:31:10,064 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:31:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:31:10,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1106436747, now seen corresponding path program 1 times [2020-10-13 10:31:10,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:31:10,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090516131] [2020-10-13 10:31:10,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:31:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 10:31:10,101 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 10:31:10,101 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 10:31:10,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 10:31:10,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:31:10 BoogieIcfgContainer [2020-10-13 10:31:10,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:31:10,131 INFO L168 Benchmark]: Toolchain (without parser) took 14441.98 ms. Allocated memory was 140.5 MB in the beginning and 480.2 MB in the end (delta: 339.7 MB). Free memory was 101.7 MB in the beginning and 412.5 MB in the end (delta: -310.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-10-13 10:31:10,132 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:31:10,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.66 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 164.7 MB in the end (delta: -63.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-13 10:31:10,134 INFO L168 Benchmark]: Boogie Preprocessor took 76.45 ms. Allocated memory is still 203.9 MB. Free memory was 164.7 MB in the beginning and 161.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:31:10,135 INFO L168 Benchmark]: RCFGBuilder took 772.30 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 100.4 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:31:10,136 INFO L168 Benchmark]: TraceAbstraction took 12996.48 ms. Allocated memory was 203.9 MB in the beginning and 480.2 MB in the end (delta: 276.3 MB). Free memory was 99.8 MB in the beginning and 412.5 MB in the end (delta: -312.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:31:10,139 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 591.66 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 164.7 MB in the end (delta: -63.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.45 ms. Allocated memory is still 203.9 MB. Free memory was 164.7 MB in the beginning and 161.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 772.30 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 100.4 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12996.48 ms. Allocated memory was 203.9 MB in the beginning and 480.2 MB in the end (delta: 276.3 MB). Free memory was 99.8 MB in the beginning and 412.5 MB in the end (delta: -312.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 658]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L654] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L681] CALL foo() [L670] FCALL ldv_initialize() [L671] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L671] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L671] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L672] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L672] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L672] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L673] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L659] CALL ldv_set_add(m, &mutexes) [L625] CALL, EXPR ldv_is_in_set(new, s) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L625] RET, EXPR ldv_is_in_set(new, s) [L625] COND TRUE !ldv_is_in_set(new, s) [L626] struct ldv_list_element *le; [L627] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L627] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L627] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L628] le->e = new [L629] CALL ldv_list_add(&le->list, s) [L597] EXPR head->next [L597] CALL __ldv_list_add(new, head, head->next) [L585] next->prev = new [L586] new->next = next [L587] new->prev = prev [L588] prev->next = new [L597] RET __ldv_list_add(new, head, head->next) [L629] RET ldv_list_add(&le->list, s) [L659] RET ldv_set_add(m, &mutexes) [L673] RET mutex_lock(m1) [L674] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND TRUE &m->list != (s) [L645] EXPR m->e [L645] COND TRUE m->e == e [L646] return 1; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND TRUE ldv_is_in_set(m, &mutexes) [L658] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 129 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.9s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 492 SDtfs, 773 SDslu, 400 SDs, 0 SdLazy, 1803 SolverSat, 415 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 392 NumberOfCodeBlocks, 392 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 301 ConstructedInterpolants, 0 QuantifiedInterpolants, 79283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 150/165 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...