/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=0.4 --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 05:32:41,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:32:41,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:32:41,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:32:41,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:32:41,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:32:41,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:32:41,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:32:41,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:32:41,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:32:41,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:32:41,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:32:41,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:32:41,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:32:41,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:32:41,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:32:41,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:32:41,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:32:41,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:32:41,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:32:41,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:32:41,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:32:41,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:32:41,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:32:41,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:32:41,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:32:41,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:32:41,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:32:41,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:32:41,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:32:41,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:32:41,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:32:41,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:32:41,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:32:41,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:32:41,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:32:41,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:32:41,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:32:41,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:32:41,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:32:41,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:32:41,299 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 05:32:41,349 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:32:41,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:32:41,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:32:41,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:32:41,353 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:32:41,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:32:41,353 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:32:41,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:32:41,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:32:41,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:32:41,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:32:41,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:32:41,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:32:41,356 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:32:41,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:32:41,357 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:32:41,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:32:41,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:32:41,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:32:41,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:32:41,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:32:41,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:41,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:32:41,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:32:41,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:32:41,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:32:41,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:32:41,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:32:41,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:32:41,360 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:32:41,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:32:41,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:32:41,864 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:32:41,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:32:41,867 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:32:41,868 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 05:32:41,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fefce0138/9f160fea3dd845ef846d6d6b15d3be53/FLAG7b61d4b2f [2020-09-25 05:32:42,655 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:32:42,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 05:32:42,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fefce0138/9f160fea3dd845ef846d6d6b15d3be53/FLAG7b61d4b2f [2020-09-25 05:32:42,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fefce0138/9f160fea3dd845ef846d6d6b15d3be53 [2020-09-25 05:32:42,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:32:42,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:32:42,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:42,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:32:42,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:32:42,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:42" (1/1) ... [2020-09-25 05:32:42,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef601eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:42, skipping insertion in model container [2020-09-25 05:32:42,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:42" (1/1) ... [2020-09-25 05:32:42,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:32:42,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:32:43,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:43,643 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:32:43,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:43,776 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:32:43,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43 WrapperNode [2020-09-25 05:32:43,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:43,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:32:43,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:32:43,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:32:43,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43" (1/1) ... [2020-09-25 05:32:43,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43" (1/1) ... [2020-09-25 05:32:43,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43" (1/1) ... [2020-09-25 05:32:43,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43" (1/1) ... [2020-09-25 05:32:43,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43" (1/1) ... [2020-09-25 05:32:43,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43" (1/1) ... [2020-09-25 05:32:43,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43" (1/1) ... [2020-09-25 05:32:43,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:32:43,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:32:43,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:32:43,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:32:43,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43" (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 05:32:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:32:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:32:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 05:32:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 05:32:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 05:32:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 05:32:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-25 05:32:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-25 05:32:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-25 05:32:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-25 05:32:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-25 05:32:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-25 05:32:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-25 05:32:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-25 05:32:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-25 05:32:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 05:32:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-25 05:32:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-25 05:32:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-25 05:32:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 05:32:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 05:32:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 05:32:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 05:32:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 05:32:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:32:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 05:32:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 05:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 05:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 05:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 05:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 05:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 05:32:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 05:32:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 05:32:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 05:32:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 05:32:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 05:32:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 05:32:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 05:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 05:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 05:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 05:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 05:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 05:32:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 05:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 05:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 05:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 05:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 05:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 05:32:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 05:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 05:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 05:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 05:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 05:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 05:32:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 05:32:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 05:32:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 05:32:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 05:32:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 05:32:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 05:32:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 05:32:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 05:32:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 05:32:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 05:32:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 05:32:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 05:32:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 05:32:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 05:32:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 05:32:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 05:32:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 05:32:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 05:32:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 05:32:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 05:32:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 05:32:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:32:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:32:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 05:32:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:32:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 05:32:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 05:32:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 05:32:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 05:32:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:32:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 05:32:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 05:32:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 05:32:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 05:32:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 05:32:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 05:32:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 05:32:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 05:32:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 05:32:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 05:32:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 05:32:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 05:32:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 05:32:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 05:32:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 05:32:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 05:32:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 05:32:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 05:32:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 05:32:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 05:32:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 05:32:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 05:32:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 05:32:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 05:32:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 05:32:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 05:32:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 05:32:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 05:32:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 05:32:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 05:32:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 05:32:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 05:32:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 05:32:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 05:32:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 05:32:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 05:32:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 05:32:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 05:32:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 05:32:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 05:32:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 05:32:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:32:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 05:32:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:32:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 05:32:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:32:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-25 05:32:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-25 05:32:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:32:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-25 05:32:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-25 05:32:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-25 05:32:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:32:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-25 05:32:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-25 05:32:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-25 05:32:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-25 05:32:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 05:32:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-25 05:32:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-25 05:32:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-25 05:32:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:32:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 05:32:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 05:32:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 05:32:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 05:32:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 05:32:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:32:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:32:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:32:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 05:32:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:32:44,769 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:32:44,769 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 05:32:44,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:44 BoogieIcfgContainer [2020-09-25 05:32:44,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:32:44,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:32:44,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:32:44,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:32:44,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:32:42" (1/3) ... [2020-09-25 05:32:44,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bc3917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:44, skipping insertion in model container [2020-09-25 05:32:44,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:43" (2/3) ... [2020-09-25 05:32:44,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bc3917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:44, skipping insertion in model container [2020-09-25 05:32:44,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:44" (3/3) ... [2020-09-25 05:32:44,785 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-25 05:32:44,798 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:32:44,809 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 05:32:44,833 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 05:32:44,865 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:32:44,865 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:32:44,866 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:32:44,866 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:32:44,866 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:32:44,866 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:32:44,866 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:32:44,866 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:32:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-25 05:32:44,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 05:32:44,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:44,908 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 05:32:44,908 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:44,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:44,917 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-25 05:32:44,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:44,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107706591] [2020-09-25 05:32:44,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:45,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 05:32:45,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:45,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-09-25 05:32:45,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 05:32:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:32:45,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:32:45,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:45,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:45,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:45,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 05:32:45,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:45,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:45,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:32:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:45,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:32:45,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:45,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:45,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:45,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:45,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:32:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:45,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:32:45,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:45,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 05:32:45,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:45,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:32:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:32:45,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:45,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:32:45,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:45,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:45,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 05:32:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:45,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:32:45,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:45,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 05:32:45,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:45,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:45,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:45,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:45,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:32:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:45,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:32:45,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:45,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:32:45,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:45,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:45,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:45,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:45,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 05:32:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:45,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:45,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:45,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:32:45,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:45,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 05:32:45,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:45,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:32:45,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:45,974 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 05:32:45,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107706591] [2020-09-25 05:32:45,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:45,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:45,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76235238] [2020-09-25 05:32:45,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:45,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:46,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:46,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:46,008 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-25 05:32:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:46,783 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-25 05:32:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:32:46,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-25 05:32:46,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:46,803 INFO L225 Difference]: With dead ends: 367 [2020-09-25 05:32:46,804 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 05:32:46,810 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 05:32:46,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 05:32:46,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-25 05:32:46,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-25 05:32:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-25 05:32:46,893 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-25 05:32:46,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:46,896 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-25 05:32:46,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:46,897 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-25 05:32:46,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 05:32:46,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:46,901 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 05:32:46,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:32:46,902 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:46,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:46,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-25 05:32:46,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:46,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804217132] [2020-09-25 05:32:46,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:46,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:32:47,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734 [2020-09-25 05:32:47,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:32:47,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 05:32:47,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 05:32:47,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:47,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:32:47,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:32:47,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:32:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:32:47,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:32:47,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:47,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:32:47,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:32:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:32:47,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 05:32:47,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:47,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:47,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:32:47,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:32:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:32:47,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:47,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:47,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:47,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 05:32:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:32:47,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 05:32:47,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:32:47,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:32:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:32:47,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:47,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 05:32:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:48,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 05:32:48,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:48,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 05:32:48,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:48,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:48,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:32:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:32:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:32:48,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:48,291 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 05:32:48,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804217132] [2020-09-25 05:32:48,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:48,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:32:48,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081394658] [2020-09-25 05:32:48,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:32:48,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:48,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:32:48,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:32:48,295 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 10 states. [2020-09-25 05:32:48,633 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-09-25 05:32:48,950 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-09-25 05:32:49,778 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-09-25 05:32:50,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:50,687 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-25 05:32:50,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 05:32:50,688 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-25 05:32:50,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:50,693 INFO L225 Difference]: With dead ends: 494 [2020-09-25 05:32:50,693 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 05:32:50,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2020-09-25 05:32:50,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 05:32:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-25 05:32:50,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 05:32:50,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-25 05:32:50,736 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-25 05:32:50,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:50,736 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-25 05:32:50,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:32:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-25 05:32:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 05:32:50,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:50,742 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 05:32:50,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:32:50,743 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:50,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:50,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-25 05:32:50,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:50,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724031913] [2020-09-25 05:32:50,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 05:32:51,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:51,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 876 [2020-09-25 05:32:51,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:51,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 05:32:51,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:32:51,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:51,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:51,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:51,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:51,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:32:51,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:51,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:51,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:51,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:51,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:32:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:51,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:32:51,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:51,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:32:51,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:51,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:51,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:32:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:51,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:32:51,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:32:51,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:51,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:32:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:51,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:32:51,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:51,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:51,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:51,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 05:32:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:51,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:32:51,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:51,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:32:51,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:51,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:32:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:51,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:32:51,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:32:51,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:51,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 05:32:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:51,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:32:51,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:51,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 05:32:51,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 05:32:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:32:51,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:51,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:32:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:51,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:32:51,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:51,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:32:51,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:51,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:51,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 05:32:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:51,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:51,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:51,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:32:51,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:51,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 05:32:51,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:51,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:51,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:51,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:32:51,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:32:51,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:51,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:32:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:32:52,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:52,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 05:32:52,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 05:32:52,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-25 05:32:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:32:52,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:52,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 05:32:52,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 05:32:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:52,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:32:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:32:52,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:32:52,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:52,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:52,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 05:32:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:32:52,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:52,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 05:32:52,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:52,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:52,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:32:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:32:52,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:52,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:32:52,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:52,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:52,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 05:32:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:52,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:52,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:32:52,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:52,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:32:52,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:52,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:52,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:52,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:52,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:52,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:52,362 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 05:32:52,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724031913] [2020-09-25 05:32:52,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:32:52,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:32:52,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002521749] [2020-09-25 05:32:52,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:32:52,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:52,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:32:52,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:32:52,366 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-25 05:32:53,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:53,292 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-25 05:32:53,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:32:53,292 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-25 05:32:53,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:53,299 INFO L225 Difference]: With dead ends: 511 [2020-09-25 05:32:53,299 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 05:32:53,305 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 05:32:53,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 05:32:53,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-25 05:32:53,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 05:32:53,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-25 05:32:53,345 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-25 05:32:53,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:53,346 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-25 05:32:53,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:32:53,346 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-25 05:32:53,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 05:32:53,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:53,350 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 05:32:53,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:32:53,350 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:53,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:53,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-25 05:32:53,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:53,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292186792] [2020-09-25 05:32:53,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:53,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:53,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:53,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:58,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:58,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-25 05:32:58,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:32:58,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 05:32:58,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:58,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:58,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:32:58,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 05:32:58,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 05:32:58,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:58,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:58,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:58,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:58,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:58,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:58,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 05:32:58,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:58,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:58,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:58,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:58,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:32:58,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:58,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 05:32:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:58,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:58,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:58,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:32:58,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:58,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:58,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:58,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:58,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:58,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:32:58,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:58,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:32:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:58,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:58,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:58,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:32:58,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:58,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 05:32:58,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:58,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:58,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:58,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:58,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:32:58,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:32:58,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:32:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:58,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:58,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:58,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:32:58,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:32:58,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:58,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:58,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:58,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:58,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:58,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:58,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 05:32:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:58,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:58,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:58,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:32:58,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:58,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 05:32:58,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:58,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:58,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:58,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:32:58,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:58,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:32:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:58,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:58,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:58,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:32:58,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:58,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:32:58,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:58,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:58,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:58,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 05:32:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:58,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:58,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:59,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:59,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 05:32:59,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:59,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1223 [2020-09-25 05:32:59,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:59,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:32:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:32:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 05:32:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:00,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:33:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:00,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:00,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:00,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:33:00,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:00,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 05:33:00,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:00,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:33:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 05:33:00,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:00,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 05:33:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:00,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:00,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:00,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 05:33:00,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:00,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-25 05:33:00,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:00,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:00,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:33:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:33:00,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:33:00,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:00,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:33:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:00,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:00,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:00,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 05:33:00,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:00,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 05:33:00,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:00,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:00,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:33:00,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:00,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 05:33:00,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:00,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:33:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:00,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:00,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 05:33:01,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:33:01,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 539 [2020-09-25 05:33:01,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:01,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 05:33:01,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:01,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 05:33:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:01,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:33:01,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:01,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:33:01,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:01,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:01,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:01,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 05:33:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:01,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 05:33:01,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:33:01,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:01,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:01,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:33:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:01,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 05:33:01,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:01,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:33:01,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:01,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:01,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:01,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:33:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:01,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 05:33:01,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:33:01,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:33:01,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:01,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,343 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 05:33:01,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292186792] [2020-09-25 05:33:01,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:01,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 05:33:01,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776174539] [2020-09-25 05:33:01,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 05:33:01,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:01,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 05:33:01,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:33:01,348 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 15 states. [2020-09-25 05:33:05,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:05,062 INFO L93 Difference]: Finished difference Result 695 states and 773 transitions. [2020-09-25 05:33:05,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-25 05:33:05,063 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 144 [2020-09-25 05:33:05,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:05,066 INFO L225 Difference]: With dead ends: 695 [2020-09-25 05:33:05,067 INFO L226 Difference]: Without dead ends: 394 [2020-09-25 05:33:05,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=499, Invalid=2153, Unknown=0, NotChecked=0, Total=2652 [2020-09-25 05:33:05,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-25 05:33:05,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 282. [2020-09-25 05:33:05,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 05:33:05,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 305 transitions. [2020-09-25 05:33:05,095 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 305 transitions. Word has length 144 [2020-09-25 05:33:05,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:05,096 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 305 transitions. [2020-09-25 05:33:05,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 05:33:05,096 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 305 transitions. [2020-09-25 05:33:05,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 05:33:05,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:05,099 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 05:33:05,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:33:05,099 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:05,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:05,100 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-25 05:33:05,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:05,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521592386] [2020-09-25 05:33:05,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:33:05,150 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:33:05,150 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:33:05,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:33:05,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:33:05 BoogieIcfgContainer [2020-09-25 05:33:05,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:33:05,183 INFO L168 Benchmark]: Toolchain (without parser) took 22299.17 ms. Allocated memory was 140.5 MB in the beginning and 473.4 MB in the end (delta: 332.9 MB). Free memory was 102.1 MB in the beginning and 322.1 MB in the end (delta: -219.9 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. [2020-09-25 05:33:05,184 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 05:33:05,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 888.06 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 165.4 MB in the end (delta: -63.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:33:05,186 INFO L168 Benchmark]: Boogie Preprocessor took 85.36 ms. Allocated memory is still 203.9 MB. Free memory was 165.4 MB in the beginning and 161.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 05:33:05,187 INFO L168 Benchmark]: RCFGBuilder took 911.35 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 161.4 MB in the beginning and 207.5 MB in the end (delta: -46.1 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. [2020-09-25 05:33:05,188 INFO L168 Benchmark]: TraceAbstraction took 20404.08 ms. Allocated memory was 236.5 MB in the beginning and 473.4 MB in the end (delta: 237.0 MB). Free memory was 207.5 MB in the beginning and 322.1 MB in the end (delta: -114.6 MB). Peak memory consumption was 122.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:33:05,192 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 888.06 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 165.4 MB in the end (delta: -63.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.36 ms. Allocated memory is still 203.9 MB. Free memory was 165.4 MB in the beginning and 161.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 911.35 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 161.4 MB in the beginning and 207.5 MB in the end (delta: -46.1 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20404.08 ms. Allocated memory was 236.5 MB in the beginning and 473.4 MB in the end (delta: 237.0 MB). Free memory was 207.5 MB in the beginning and 322.1 MB in the end (delta: -114.6 MB). Peak memory consumption was 122.4 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: 20.2s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 769 SDtfs, 1614 SDslu, 570 SDs, 0 SdLazy, 3364 SolverSat, 352 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, 3.4s 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 201 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 179907 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...