/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:30:13,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:30:13,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:30:13,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:30:13,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:30:13,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:30:13,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:30:13,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:30:13,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:30:13,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:30:13,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:30:13,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:30:13,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:30:13,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:30:13,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:30:13,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:30:13,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:30:13,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:30:13,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:30:13,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:30:13,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:30:13,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:30:13,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:30:13,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:30:13,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:30:13,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:30:13,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:30:13,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:30:13,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:30:13,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:30:13,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:30:13,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:30:13,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:30:13,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:30:13,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:30:13,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:30:13,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:30:13,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:30:13,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:30:13,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:30:13,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:30:13,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 23:30:13,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:30:13,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:30:13,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:30:13,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:30:13,285 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:30:13,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:30:13,285 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:30:13,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:30:13,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:30:13,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:30:13,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:30:13,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:30:13,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:30:13,287 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:30:13,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:30:13,287 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:30:13,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:30:13,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:30:13,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:30:13,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:30:13,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:30:13,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:30:13,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:30:13,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:30:13,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:30:13,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:30:13,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:30:13,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:30:13,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:30:13,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:30:13,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:30:13,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:30:13,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:30:13,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:30:13,609 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:30:13,609 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-10-14 23:30:13,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3732078f/b517f57468714a328c8b146a64762f8c/FLAG03f76b1ad [2020-10-14 23:30:14,152 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:30:14,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-10-14 23:30:14,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3732078f/b517f57468714a328c8b146a64762f8c/FLAG03f76b1ad [2020-10-14 23:30:14,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3732078f/b517f57468714a328c8b146a64762f8c [2020-10-14 23:30:14,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:30:14,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:30:14,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:30:14,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:30:14,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:30:14,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:30:14" (1/1) ... [2020-10-14 23:30:14,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383fe438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:14, skipping insertion in model container [2020-10-14 23:30:14,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:30:14" (1/1) ... [2020-10-14 23:30:14,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:30:14,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:30:15,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:30:15,078 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:30:15,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:30:15,231 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:30:15,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15 WrapperNode [2020-10-14 23:30:15,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:30:15,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:30:15,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:30:15,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:30:15,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:30:15,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:30:15,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:30:15,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:30:15,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:30:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:30:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:30:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-14 23:30:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-14 23:30:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 23:30:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 23:30:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-14 23:30:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-14 23:30:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-14 23:30:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-14 23:30:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-14 23:30:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-14 23:30:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-14 23:30:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-14 23:30:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-14 23:30:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-14 23:30:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-14 23:30:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-14 23:30:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-14 23:30:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 23:30:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-14 23:30:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-14 23:30:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 23:30:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-14 23:30:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:30:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-14 23:30:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-14 23:30:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 23:30:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 23:30:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 23:30:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 23:30:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 23:30:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 23:30:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 23:30:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 23:30:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 23:30:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 23:30:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 23:30:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 23:30:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 23:30:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 23:30:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 23:30:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 23:30:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 23:30:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 23:30:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 23:30:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 23:30:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 23:30:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 23:30:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 23:30:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 23:30:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 23:30:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 23:30:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 23:30:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 23:30:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 23:30:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 23:30:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 23:30:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 23:30:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 23:30:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 23:30:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 23:30:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 23:30:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 23:30:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 23:30:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 23:30:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 23:30:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 23:30:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 23:30:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 23:30:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 23:30:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 23:30:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 23:30:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 23:30:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 23:30:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 23:30:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 23:30:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 23:30:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 23:30:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 23:30:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 23:30:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 23:30:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 23:30:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 23:30:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 23:30:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 23:30:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 23:30:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 23:30:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 23:30:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 23:30:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 23:30:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 23:30:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 23:30:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 23:30:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 23:30:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 23:30:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 23:30:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 23:30:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 23:30:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 23:30:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 23:30:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 23:30:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 23:30:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 23:30:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 23:30:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 23:30:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 23:30:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 23:30:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 23:30:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 23:30:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 23:30:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 23:30:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 23:30:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 23:30:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 23:30:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 23:30:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 23:30:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 23:30:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 23:30:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 23:30:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 23:30:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 23:30:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 23:30:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 23:30:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 23:30:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 23:30:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 23:30:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:30:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 23:30:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:30:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 23:30:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 23:30:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-14 23:30:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-14 23:30:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 23:30:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-14 23:30:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-14 23:30:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-14 23:30:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 23:30:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-14 23:30:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-14 23:30:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-14 23:30:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-14 23:30:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-14 23:30:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-14 23:30:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-14 23:30:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-14 23:30:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:30:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 23:30:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-14 23:30:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-14 23:30:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 23:30:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-14 23:30:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:30:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:30:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 23:30:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 23:30:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:30:16,069 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:30:16,070 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-14 23:30:16,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:30:16 BoogieIcfgContainer [2020-10-14 23:30:16,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:30:16,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:30:16,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:30:16,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:30:16,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:30:14" (1/3) ... [2020-10-14 23:30:16,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6972572f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:30:16, skipping insertion in model container [2020-10-14 23:30:16,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (2/3) ... [2020-10-14 23:30:16,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6972572f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:30:16, skipping insertion in model container [2020-10-14 23:30:16,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:30:16" (3/3) ... [2020-10-14 23:30:16,084 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-10-14 23:30:16,096 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:30:16,105 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-14 23:30:16,121 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-14 23:30:16,150 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:30:16,150 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:30:16,150 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:30:16,151 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:30:16,151 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:30:16,151 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:30:16,151 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:30:16,152 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:30:16,180 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2020-10-14 23:30:16,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-14 23:30:16,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:16,189 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:30:16,190 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:16,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:16,197 INFO L82 PathProgramCache]: Analyzing trace with hash -326397870, now seen corresponding path program 1 times [2020-10-14 23:30:16,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:16,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948458822] [2020-10-14 23:30:16,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:16,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:16,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 23:30:16,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:30:16,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-14 23:30:16,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:16,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:16,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:16,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 23:30:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:30:16,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:30:16,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:16,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:16,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:16,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:16,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:30:16,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:16,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:16,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:16,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:30:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:16,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:16,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:16,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:16,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:16,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:16,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:16,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:16,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:30:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:16,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:16,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:16,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:30:16,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 23:30:16,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:16,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:16,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:16,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:16,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:16,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:16,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:16,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:16,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:30:16,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:30:16,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:16,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 23:30:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:16,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:16,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:30:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:16,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:16,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:16,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:30:16,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:30:16,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:16,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:16,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:16,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 23:30:16,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:16,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:16,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:16,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:16,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:16,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:16,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:16,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:16,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 23:30:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:16,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:30:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:16,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:17,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:17,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:17,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:17,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 23:30:17,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:17,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:30:17,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 23:30:17,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948458822] [2020-10-14 23:30:17,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:30:17,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:30:17,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201488257] [2020-10-14 23:30:17,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:30:17,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:30:17,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:30:17,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:30:17,079 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 6 states. [2020-10-14 23:30:17,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:30:17,762 INFO L93 Difference]: Finished difference Result 221 states and 275 transitions. [2020-10-14 23:30:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 23:30:17,765 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-10-14 23:30:17,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:30:17,779 INFO L225 Difference]: With dead ends: 221 [2020-10-14 23:30:17,780 INFO L226 Difference]: Without dead ends: 115 [2020-10-14 23:30:17,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:30:17,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-14 23:30:17,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102. [2020-10-14 23:30:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-14 23:30:17,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2020-10-14 23:30:17,860 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 42 [2020-10-14 23:30:17,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:30:17,860 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2020-10-14 23:30:17,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:30:17,861 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2020-10-14 23:30:17,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-14 23:30:17,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:17,864 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:30:17,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:30:17,865 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:17,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:17,865 INFO L82 PathProgramCache]: Analyzing trace with hash 640264123, now seen corresponding path program 1 times [2020-10-14 23:30:17,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:17,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511681942] [2020-10-14 23:30:17,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:17,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 23:30:18,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-10-14 23:30:18,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:30:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:30:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 23:30:18,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:18,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:30:18,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:18,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:18,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:30:18,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:30:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:18,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:18,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:18,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:18,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:30:18,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:30:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:18,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 23:30:18,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:18,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:18,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:30:18,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:18,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:18,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:18,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:18,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:18,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:30:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:18,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 23:30:18,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:30:18,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:18,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:18,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:18,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:18,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:18,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:18,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:30:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:18,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 23:30:18,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:30:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 23:30:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:30:18,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 23:30:18,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511681942] [2020-10-14 23:30:18,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:30:18,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 23:30:18,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855295735] [2020-10-14 23:30:18,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:30:18,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:30:18,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:30:18,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:30:18,544 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand 7 states. [2020-10-14 23:30:19,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:30:19,633 INFO L93 Difference]: Finished difference Result 288 states and 346 transitions. [2020-10-14 23:30:19,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 23:30:19,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2020-10-14 23:30:19,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:30:19,638 INFO L225 Difference]: With dead ends: 288 [2020-10-14 23:30:19,638 INFO L226 Difference]: Without dead ends: 200 [2020-10-14 23:30:19,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:30:19,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-14 23:30:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 163. [2020-10-14 23:30:19,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-14 23:30:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 194 transitions. [2020-10-14 23:30:19,674 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 194 transitions. Word has length 42 [2020-10-14 23:30:19,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:30:19,674 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 194 transitions. [2020-10-14 23:30:19,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:30:19,675 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 194 transitions. [2020-10-14 23:30:19,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 23:30:19,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:19,678 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:30:19,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:30:19,679 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:19,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:19,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1149911364, now seen corresponding path program 1 times [2020-10-14 23:30:19,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:19,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516909453] [2020-10-14 23:30:19,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:19,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:19,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 23:30:20,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:30:20,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-14 23:30:20,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 23:30:20,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:30:20,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:20,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:30:20,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:20,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:30:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:20,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:30:20,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:20,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:20,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:30:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:20,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:30:20,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:20,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:20,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:20,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:20,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:20,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:20,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:30:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:20,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:30:20,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:20,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:20,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:20,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:30:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:30:20,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 23:30:20,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:20,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 23:30:20,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:30:20,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:20,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:30:20,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:30:20,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:30:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:30:20,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 23:30:20,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:20,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 23:30:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:30:20,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:20,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 23:30:20,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:30:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:30:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:30:20,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:30:20,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 23:30:20,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:20,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 23:30:20,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:30:20,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:20,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:30:20,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:20,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:30:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:30:20,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 23:30:20,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:20,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 23:30:20,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:30:20,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:20,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 23:30:20,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:30:20,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 23:30:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:20,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:20,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:20,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:20,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:30:20,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:20,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 23:30:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:20,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-14 23:30:20,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516909453] [2020-10-14 23:30:20,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:30:20,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 23:30:20,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190660957] [2020-10-14 23:30:20,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:30:20,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:30:20,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:30:20,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:30:20,855 INFO L87 Difference]: Start difference. First operand 163 states and 194 transitions. Second operand 7 states. [2020-10-14 23:30:21,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:30:21,301 INFO L93 Difference]: Finished difference Result 296 states and 353 transitions. [2020-10-14 23:30:21,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:30:21,301 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-14 23:30:21,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:30:21,304 INFO L225 Difference]: With dead ends: 296 [2020-10-14 23:30:21,304 INFO L226 Difference]: Without dead ends: 171 [2020-10-14 23:30:21,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 23:30:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-14 23:30:21,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2020-10-14 23:30:21,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-14 23:30:21,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 200 transitions. [2020-10-14 23:30:21,330 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 200 transitions. Word has length 90 [2020-10-14 23:30:21,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:30:21,330 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 200 transitions. [2020-10-14 23:30:21,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:30:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 200 transitions. [2020-10-14 23:30:21,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 23:30:21,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:21,334 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:30:21,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:30:21,334 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:21,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:21,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1610969230, now seen corresponding path program 1 times [2020-10-14 23:30:21,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:21,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557947893] [2020-10-14 23:30:21,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:21,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 23:30:26,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 23:30:26,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 23:30:26,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 23:30:26,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:30:26,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 23:30:26,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:26,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:26,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:26,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:30:26,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:26,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:26,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:30:26,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:26,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:30:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:26,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:26,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:26,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:26,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:26,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:30:26,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:26,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:30:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:26,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:26,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 23:30:26,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:26,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:26,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:30:26,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:26,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:26,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:26,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:30:26,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:26,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:26,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:30:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:26,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:26,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:30:26,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:30:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:26,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:26,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:30:26,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:26,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:26,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 23:30:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:30:26,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 23:30:26,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-14 23:30:26,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:30:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:30:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 23:30:26,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:26,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:26,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:26,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 23:30:26,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:26,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:30:26,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:26,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:30:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:26,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:26,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:30:26,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:26,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 23:30:26,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:26,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:30:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:30:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 23:30:26,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:26,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:26,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:27,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:27,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:27,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:30:27,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:27,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:30:27,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:27,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 23:30:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:27,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:27,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:27,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:27,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 23:30:27,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:30:27,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 23:30:27,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:27,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:27,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:30:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:30:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 23:30:27,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:27,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:27,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:27,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:27,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:27,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:27,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:30:27,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:27,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:27,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:27,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:27,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:30:27,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:27,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 23:30:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:27,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:27,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:27,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:30:27,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:27,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 23:30:27,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:27,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:30:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:30:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 23:30:27,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:27,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:27,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:27,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:27,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:27,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:27,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 23:30:27,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:27,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:30:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:27,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:30:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:27,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 23:30:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:27,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:27,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:27,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:27,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:27,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:30:27,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:27,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 23:30:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:27,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-14 23:30:27,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557947893] [2020-10-14 23:30:27,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:30:27,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 23:30:27,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969272932] [2020-10-14 23:30:27,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 23:30:27,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:30:27,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 23:30:27,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-14 23:30:27,434 INFO L87 Difference]: Start difference. First operand 169 states and 200 transitions. Second operand 12 states. [2020-10-14 23:30:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:30:29,672 INFO L93 Difference]: Finished difference Result 408 states and 483 transitions. [2020-10-14 23:30:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 23:30:29,673 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-10-14 23:30:29,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:30:29,676 INFO L225 Difference]: With dead ends: 408 [2020-10-14 23:30:29,677 INFO L226 Difference]: Without dead ends: 233 [2020-10-14 23:30:29,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=276, Invalid=1056, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 23:30:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-14 23:30:29,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 173. [2020-10-14 23:30:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-14 23:30:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 196 transitions. [2020-10-14 23:30:29,704 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 196 transitions. Word has length 90 [2020-10-14 23:30:29,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:30:29,705 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 196 transitions. [2020-10-14 23:30:29,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 23:30:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 196 transitions. [2020-10-14 23:30:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 23:30:29,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:29,707 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:30:29,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 23:30:29,707 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:29,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:29,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1106436747, now seen corresponding path program 1 times [2020-10-14 23:30:29,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:29,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439181954] [2020-10-14 23:30:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 23:30:29,746 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 23:30:29,746 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 23:30:29,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 23:30:29,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:30:29 BoogieIcfgContainer [2020-10-14 23:30:29,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 23:30:29,799 INFO L168 Benchmark]: Toolchain (without parser) took 15317.18 ms. Allocated memory was 146.8 MB in the beginning and 438.8 MB in the end (delta: 292.0 MB). Free memory was 101.6 MB in the beginning and 353.8 MB in the end (delta: -252.2 MB). Peak memory consumption was 39.8 MB. Max. memory is 7.1 GB. [2020-10-14 23:30:29,800 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 23:30:29,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.63 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 165.7 MB in the end (delta: -64.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-14 23:30:29,804 INFO L168 Benchmark]: Boogie Preprocessor took 99.53 ms. Allocated memory is still 204.5 MB. Free memory was 165.7 MB in the beginning and 162.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-10-14 23:30:29,809 INFO L168 Benchmark]: RCFGBuilder took 741.78 ms. Allocated memory is still 204.5 MB. Free memory was 162.7 MB in the beginning and 102.1 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB. [2020-10-14 23:30:29,810 INFO L168 Benchmark]: TraceAbstraction took 13719.44 ms. Allocated memory was 204.5 MB in the beginning and 438.8 MB in the end (delta: 234.4 MB). Free memory was 101.2 MB in the beginning and 353.8 MB in the end (delta: -252.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 23:30:29,821 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.63 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 165.7 MB in the end (delta: -64.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.53 ms. Allocated memory is still 204.5 MB. Free memory was 165.7 MB in the beginning and 162.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 741.78 ms. Allocated memory is still 204.5 MB. Free memory was 162.7 MB in the beginning and 102.1 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13719.44 ms. Allocated memory was 204.5 MB in the beginning and 438.8 MB in the end (delta: 234.4 MB). Free memory was 101.2 MB in the beginning and 353.8 MB in the end (delta: -252.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 658]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L654] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L681] CALL foo() [L670] FCALL ldv_initialize() [L671] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L671] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L671] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L672] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L672] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L672] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L673] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L659] CALL ldv_set_add(m, &mutexes) [L625] CALL, EXPR ldv_is_in_set(new, s) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L625] RET, EXPR ldv_is_in_set(new, s) [L625] COND TRUE !ldv_is_in_set(new, s) [L626] struct ldv_list_element *le; [L627] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L627] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L627] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L628] le->e = new [L629] CALL ldv_list_add(&le->list, s) [L597] EXPR head->next [L597] CALL __ldv_list_add(new, head, head->next) [L585] next->prev = new [L586] new->next = next [L587] new->prev = prev [L588] prev->next = new [L597] RET __ldv_list_add(new, head, head->next) [L629] RET ldv_list_add(&le->list, s) [L659] RET ldv_set_add(m, &mutexes) [L673] RET mutex_lock(m1) [L674] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND TRUE &m->list != (s) [L645] EXPR m->e [L645] COND TRUE m->e == e [L646] return 1; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND TRUE ldv_is_in_set(m, &mutexes) [L658] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 129 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.6s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 429 SDtfs, 632 SDslu, 385 SDs, 0 SdLazy, 2106 SolverSat, 371 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=4, 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, 112 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 86374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 141/156 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...