/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 SingleStatement --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=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-c90d42b [2020-09-25 08:59:18,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:59:18,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:59:18,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:59:18,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:59:18,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:59:18,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:59:18,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:59:18,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:59:18,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:59:18,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:59:18,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:59:18,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:59:18,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:59:18,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:59:18,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:59:18,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:59:18,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:59:18,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:59:18,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:59:18,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:59:18,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:59:18,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:59:18,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:59:18,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:59:18,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:59:18,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:59:18,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:59:18,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:59:18,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:59:18,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:59:18,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:59:18,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:59:18,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:59:18,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:59:18,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:59:18,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:59:18,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:59:18,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:59:18,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:59:18,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:59:18,564 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 [2020-09-25 08:59:18,610 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:59:18,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:59:18,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:59:18,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:59:18,613 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:59:18,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:59:18,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:59:18,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:59:18,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:59:18,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:59:18,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:59:18,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:59:18,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:59:18,617 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:59:18,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:59:18,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:59:18,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:59:18,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:59:18,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:59:18,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:59:18,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:59:18,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:59:18,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:59:18,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:59:18,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:59:18,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:59:18,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:59:18,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:59:18,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:59:18,620 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 -> SingleStatement 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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:59:19,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:59:19,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:59:19,094 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:59:19,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:59:19,097 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:59:19,098 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 08:59:19,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4329ab7f0/756f677e666f460e86340df4e4819e03/FLAGb4c9f2848 [2020-09-25 08:59:19,912 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:59:19,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 08:59:19,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4329ab7f0/756f677e666f460e86340df4e4819e03/FLAGb4c9f2848 [2020-09-25 08:59:20,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4329ab7f0/756f677e666f460e86340df4e4819e03 [2020-09-25 08:59:20,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:59:20,102 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:59:20,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:59:20,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:59:20,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:59:20,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:59:20" (1/1) ... [2020-09-25 08:59:20,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cc86df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20, skipping insertion in model container [2020-09-25 08:59:20,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:59:20" (1/1) ... [2020-09-25 08:59:20,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:59:20,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:59:20,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:59:20,749 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:59:20,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:59:20,892 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:59:20,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20 WrapperNode [2020-09-25 08:59:20,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:59:20,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:59:20,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:59:20,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:59:20,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20" (1/1) ... [2020-09-25 08:59:20,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20" (1/1) ... [2020-09-25 08:59:20,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20" (1/1) ... [2020-09-25 08:59:20,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20" (1/1) ... [2020-09-25 08:59:20,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20" (1/1) ... [2020-09-25 08:59:20,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20" (1/1) ... [2020-09-25 08:59:20,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20" (1/1) ... [2020-09-25 08:59:20,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:59:20,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:59:20,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:59:20,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:59:20,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20" (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 [2020-09-25 08:59:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:59:21,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:59:21,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 08:59:21,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 08:59:21,087 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 08:59:21,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 08:59:21,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-25 08:59:21,088 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-25 08:59:21,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-25 08:59:21,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-25 08:59:21,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-25 08:59:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-25 08:59:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-25 08:59:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-25 08:59:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-25 08:59:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 08:59:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-25 08:59:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-25 08:59:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-25 08:59:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 08:59:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 08:59:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 08:59:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 08:59:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 08:59:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:59:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 08:59:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 08:59:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 08:59:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 08:59:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 08:59:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 08:59:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 08:59:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 08:59:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 08:59:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 08:59:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 08:59:21,093 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 08:59:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 08:59:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 08:59:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 08:59:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 08:59:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 08:59:21,094 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 08:59:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 08:59:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 08:59:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 08:59:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 08:59:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 08:59:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 08:59:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 08:59:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 08:59:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 08:59:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 08:59:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 08:59:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 08:59:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 08:59:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 08:59:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 08:59:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 08:59:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 08:59:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 08:59:21,098 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 08:59:21,098 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 08:59:21,098 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 08:59:21,098 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 08:59:21,098 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 08:59:21,098 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 08:59:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 08:59:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 08:59:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 08:59:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 08:59:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 08:59:21,099 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 08:59:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 08:59:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 08:59:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 08:59:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 08:59:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:59:21,100 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 08:59:21,101 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 08:59:21,101 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:59:21,101 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 08:59:21,101 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 08:59:21,101 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 08:59:21,101 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 08:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 08:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 08:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 08:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 08:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 08:59:21,102 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 08:59:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 08:59:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 08:59:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 08:59:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 08:59:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 08:59:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 08:59:21,103 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 08:59:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 08:59:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 08:59:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 08:59:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 08:59:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 08:59:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 08:59:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 08:59:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 08:59:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 08:59:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 08:59:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 08:59:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 08:59:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 08:59:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 08:59:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 08:59:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 08:59:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 08:59:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 08:59:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 08:59:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 08:59:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 08:59:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 08:59:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 08:59:21,107 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 08:59:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 08:59:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 08:59:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 08:59:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 08:59:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 08:59:21,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:59:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 08:59:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:59:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 08:59:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:59:21,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-25 08:59:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-25 08:59:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:59:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-25 08:59:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-25 08:59:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-25 08:59:21,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:59:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-25 08:59:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-25 08:59:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-25 08:59:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-25 08:59:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 08:59:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-25 08:59:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-25 08:59:21,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-25 08:59:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:59:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 08:59:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 08:59:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 08:59:21,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 08:59:21,114 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 08:59:21,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:59:21,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:59:21,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:59:21,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 08:59:21,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:59:21,955 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:59:21,955 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 08:59:21,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:59:21 BoogieIcfgContainer [2020-09-25 08:59:21,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:59:21,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:59:21,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:59:21,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:59:21,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:59:20" (1/3) ... [2020-09-25 08:59:21,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651b340f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:59:21, skipping insertion in model container [2020-09-25 08:59:21,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:20" (2/3) ... [2020-09-25 08:59:21,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651b340f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:59:21, skipping insertion in model container [2020-09-25 08:59:21,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:59:21" (3/3) ... [2020-09-25 08:59:21,971 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-25 08:59:21,983 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:59:21,995 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 08:59:22,030 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 08:59:22,062 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:59:22,062 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:59:22,062 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:59:22,062 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:59:22,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:59:22,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:59:22,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:59:22,063 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:59:22,089 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-25 08:59:22,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 08:59:22,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:22,100 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:22,100 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:22,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:22,107 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-25 08:59:22,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:22,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251693294] [2020-09-25 08:59:22,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:22,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:22,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:22,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 08:59:22,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:22,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-09-25 08:59:22,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:22,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:22,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:59:22,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 08:59:22,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:59:22,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:59:22,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:22,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:22,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:22,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:59:22,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:22,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:59:22,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:22,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:22,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:22,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:22,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:22,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:22,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:59:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:22,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:22,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:22,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:59:22,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:22,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:59:22,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:22,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:22,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:22,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:22,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:22,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:22,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:59:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:22,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:22,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:22,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:22,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:22,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:59:22,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:22,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:22,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:22,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:59:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:22,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:22,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:22,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:59:22,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:22,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:59:22,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:22,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:22,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:22,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:22,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:59:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:23,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:23,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:23,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:23,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:23,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 08:59:23,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:23,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:23,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:23,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:23,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:23,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:23,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:59:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:23,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:23,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:23,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:59:23,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:59:23,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:23,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:23,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:59:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:23,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:23,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:23,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:23,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:23,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 08:59:23,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:23,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:23,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:59:23,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:59:23,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 08:59:23,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251693294] [2020-09-25 08:59:23,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:59:23,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:59:23,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652745332] [2020-09-25 08:59:23,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:59:23,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:23,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:59:23,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:59:23,223 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-25 08:59:24,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:24,152 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-25 08:59:24,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 08:59:24,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-25 08:59:24,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:24,173 INFO L225 Difference]: With dead ends: 367 [2020-09-25 08:59:24,173 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 08:59:24,180 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 [2020-09-25 08:59:24,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 08:59:24,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-25 08:59:24,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-25 08:59:24,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-25 08:59:24,265 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-25 08:59:24,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:24,266 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-25 08:59:24,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:59:24,266 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-25 08:59:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 08:59:24,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:24,270 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:24,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:59:24,271 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:24,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:24,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-25 08:59:24,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:24,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067598937] [2020-09-25 08:59:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:24,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:25,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:25,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:59:25,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:25,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 768 [2020-09-25 08:59:25,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:25,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:59:25,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:59:25,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 08:59:25,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:25,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:25,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:25,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:25,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:59:25,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:25,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 08:59:25,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:25,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:25,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:59:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:25,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:59:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:25,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:25,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:25,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:59:25,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:25,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:59:25,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:25,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:25,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:25,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:25,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:59:25,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:25,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:59:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:25,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:25,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:25,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:25,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:25,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 08:59:25,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:25,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:25,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:25,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:25,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:59:25,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:25,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:59:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:25,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:25,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:25,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:59:25,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:25,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:59:25,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:25,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:25,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:25,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:25,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:59:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:25,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:25,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:25,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:25,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:25,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 08:59:25,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:25,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:25,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:25,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:59:25,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:25,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:59:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:25,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:25,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:25,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:59:25,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 08:59:25,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:25,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:25,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:59:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:25,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:25,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:25,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:59:25,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:25,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 08:59:25,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:25,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:59:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 08:59:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:59:25,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 08:59:25,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067598937] [2020-09-25 08:59:25,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:59:25,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:59:25,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215201106] [2020-09-25 08:59:25,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:59:25,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:25,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:59:25,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:59:25,701 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 10 states. [2020-09-25 08:59:26,052 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-09-25 08:59:26,408 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-09-25 08:59:26,971 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-09-25 08:59:27,284 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-09-25 08:59:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:28,178 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-25 08:59:28,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 08:59:28,179 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-25 08:59:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:28,186 INFO L225 Difference]: With dead ends: 494 [2020-09-25 08:59:28,186 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 08:59:28,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2020-09-25 08:59:28,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 08:59:28,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-25 08:59:28,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 08:59:28,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-25 08:59:28,233 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-25 08:59:28,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:28,234 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-25 08:59:28,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:59:28,234 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-25 08:59:28,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 08:59:28,240 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:28,240 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 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] [2020-09-25 08:59:28,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:59:28,241 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:28,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:28,241 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-25 08:59:28,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:28,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474306987] [2020-09-25 08:59:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:28,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:28,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 08:59:29,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:29,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 858 [2020-09-25 08:59:29,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:59:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 08:59:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:59:29,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:59:29,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:59:29,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:59:29,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:29,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:59:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:59:29,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:59:29,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:29,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:59:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:29,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:59:29,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:29,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:59:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:59:29,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:59:29,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:59:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:29,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:59:29,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:59:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:59:29,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:59:29,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 08:59:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 08:59:29,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 08:59:29,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:59:29,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 08:59:29,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:59:29,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:59:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:29,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:59:29,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 08:59:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 08:59:29,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 08:59:29,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:59:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:59:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:59:29,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:59:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:29,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 08:59:29,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:59:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 08:59:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-25 08:59:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 08:59:29,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:29,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-25 08:59:29,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 08:59:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:59:29,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:59:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:29,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:59:29,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 08:59:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 08:59:29,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:29,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 08:59:29,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:59:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:29,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:59:29,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 08:59:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:29,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:59:29,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 08:59:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-09-25 08:59:29,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474306987] [2020-09-25 08:59:29,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:29,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:59:29,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972356306] [2020-09-25 08:59:29,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:59:29,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:29,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:59:29,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:59:29,981 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-25 08:59:30,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:30,753 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-25 08:59:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:59:30,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-25 08:59:30,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:30,758 INFO L225 Difference]: With dead ends: 511 [2020-09-25 08:59:30,759 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 08:59:30,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:59:30,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 08:59:30,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-25 08:59:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 08:59:30,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-25 08:59:30,843 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-25 08:59:30,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:30,844 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-25 08:59:30,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:59:30,844 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-25 08:59:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 08:59:30,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:30,848 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:30,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:59:30,848 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:30,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-25 08:59:30,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:30,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597281477] [2020-09-25 08:59:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:30,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:31,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:31,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:35,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:35,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-25 08:59:35,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:59:35,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 08:59:35,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:35,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:35,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:59:35,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 08:59:35,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 08:59:35,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:35,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:35,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:36,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:59:36,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:36,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 08:59:36,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:36,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:59:36,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:36,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:59:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:36,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:36,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:59:36,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:36,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:59:36,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:36,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:59:36,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:36,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 08:59:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:36,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:36,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:36,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 08:59:36,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:36,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:36,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:36,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:59:36,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:59:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:36,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:36,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:59:36,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:36,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:59:36,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:36,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:36,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:59:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:36,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:36,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:59:36,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:36,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 08:59:36,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:36,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:36,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:59:36,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:36,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:59:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:36,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:36,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:59:36,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:59:36,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:36,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:36,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:36,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 08:59:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:36,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:37,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:37,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 08:59:37,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:37,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1376 [2020-09-25 08:59:37,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:37,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:37,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:59:37,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:59:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 08:59:37,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:37,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:59:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:37,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:37,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:37,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:37,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:37,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 08:59:37,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:37,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:37,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:59:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:59:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:37,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 08:59:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:37,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:37,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:37,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 08:59:37,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:37,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 08:59:37,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:37,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:59:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:59:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:59:37,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:37,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:59:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:37,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:37,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:37,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:59:37,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:37,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 08:59:37,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:37,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:37,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:59:37,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:37,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 08:59:37,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:38,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:59:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:38,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:38,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:38,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:38,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 08:59:38,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:38,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-25 08:59:38,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:38,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:38,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:38,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 08:59:38,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:38,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:38,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:59:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:38,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:38,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:38,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:38,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:59:38,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:38,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:38,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:38,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:38,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:38,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 08:59:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:38,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:38,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:38,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 08:59:38,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:38,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:59:38,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:38,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:38,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:38,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:38,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:38,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:59:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:38,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:38,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:38,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:59:38,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:38,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:59:38,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:38,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:38,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:38,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:38,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:38,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:38,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:59:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:38,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:38,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:38,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:59:38,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:38,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:59:38,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:38,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 08:59:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:38,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 8 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 08:59:38,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597281477] [2020-09-25 08:59:38,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:38,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 08:59:38,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140266252] [2020-09-25 08:59:38,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 08:59:38,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:38,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 08:59:38,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:59:38,854 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 15 states. [2020-09-25 08:59:39,596 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2020-09-25 08:59:39,776 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-09-25 08:59:40,849 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-09-25 08:59:41,016 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-09-25 08:59:41,700 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2020-09-25 08:59:41,980 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-09-25 08:59:43,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:43,438 INFO L93 Difference]: Finished difference Result 698 states and 773 transitions. [2020-09-25 08:59:43,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-25 08:59:43,440 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 144 [2020-09-25 08:59:43,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:43,444 INFO L225 Difference]: With dead ends: 698 [2020-09-25 08:59:43,444 INFO L226 Difference]: Without dead ends: 397 [2020-09-25 08:59:43,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=499, Invalid=2153, Unknown=0, NotChecked=0, Total=2652 [2020-09-25 08:59:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-09-25 08:59:43,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 281. [2020-09-25 08:59:43,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-25 08:59:43,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 304 transitions. [2020-09-25 08:59:43,472 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 304 transitions. Word has length 144 [2020-09-25 08:59:43,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:43,473 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 304 transitions. [2020-09-25 08:59:43,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 08:59:43,473 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 304 transitions. [2020-09-25 08:59:43,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 08:59:43,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:43,476 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:43,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:59:43,476 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:43,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:43,477 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-25 08:59:43,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:43,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189399694] [2020-09-25 08:59:43,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:59:43,545 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:59:43,545 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:59:43,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:59:43,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:59:43 BoogieIcfgContainer [2020-09-25 08:59:43,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:59:43,596 INFO L168 Benchmark]: Toolchain (without parser) took 23497.39 ms. Allocated memory was 138.9 MB in the beginning and 447.7 MB in the end (delta: 308.8 MB). Free memory was 101.1 MB in the beginning and 216.6 MB in the end (delta: -115.5 MB). Peak memory consumption was 193.3 MB. Max. memory is 7.1 GB. [2020-09-25 08:59:43,598 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:59:43,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.77 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 163.6 MB in the end (delta: -63.1 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-25 08:59:43,606 INFO L168 Benchmark]: Boogie Preprocessor took 91.62 ms. Allocated memory is still 202.9 MB. Free memory was 163.6 MB in the beginning and 160.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-25 08:59:43,607 INFO L168 Benchmark]: RCFGBuilder took 974.12 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 91.5 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2020-09-25 08:59:43,608 INFO L168 Benchmark]: TraceAbstraction took 21630.25 ms. Allocated memory was 202.9 MB in the beginning and 447.7 MB in the end (delta: 244.8 MB). Free memory was 90.8 MB in the beginning and 216.6 MB in the end (delta: -125.9 MB). Peak memory consumption was 119.0 MB. Max. memory is 7.1 GB. [2020-09-25 08:59:43,621 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 791.77 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 163.6 MB in the end (delta: -63.1 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.62 ms. Allocated memory is still 202.9 MB. Free memory was 163.6 MB in the beginning and 160.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 974.12 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 91.5 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21630.25 ms. Allocated memory was 202.9 MB in the beginning and 447.7 MB in the end (delta: 244.8 MB). Free memory was 90.8 MB in the beginning and 216.6 MB in the end (delta: -125.9 MB). Peak memory consumption was 119.0 MB. 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, 215 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.4s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 770 SDtfs, 1616 SDslu, 575 SDs, 0 SdLazy, 3364 SolverSat, 351 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 205 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 187486 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 238/293 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...