/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:51:35,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:51:35,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:51:35,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:51:35,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:51:35,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:51:35,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:51:35,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:51:35,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:51:35,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:51:35,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:51:35,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:51:35,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:51:35,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:51:35,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:51:35,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:51:35,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:51:35,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:51:35,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:51:35,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:51:35,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:51:35,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:51:35,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:51:35,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:51:35,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:51:35,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:51:35,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:51:35,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:51:35,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:51:35,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:51:35,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:51:35,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:51:35,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:51:35,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:51:35,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:51:35,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:51:35,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:51:35,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:51:35,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:51:35,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:51:35,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:51:35,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:51:35,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:51:35,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:51:35,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:51:35,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:51:35,510 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:51:35,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:51:35,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:51:35,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:51:35,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:51:35,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:51:35,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:51:35,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:51:35,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:51:35,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:51:35,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:51:35,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:51:35,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:51:35,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:51:35,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:51:35,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:51:35,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:51:35,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:51:35,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:51:35,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:51:35,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:51:35,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:51:35,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:51:35,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:51:35,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:51:35,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:51:36,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:51:36,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:51:36,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:51:36,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:51:36,080 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:51:36,082 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-25 01:51:36,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a04dcd8d/455528035b5e4e8b9dd779755024d39d/FLAG6fcd9a914 [2020-09-25 01:51:36,805 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:51:36,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-09-25 01:51:36,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a04dcd8d/455528035b5e4e8b9dd779755024d39d/FLAG6fcd9a914 [2020-09-25 01:51:37,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a04dcd8d/455528035b5e4e8b9dd779755024d39d [2020-09-25 01:51:37,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:51:37,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:51:37,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:51:37,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:51:37,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:51:37,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:51:37" (1/1) ... [2020-09-25 01:51:37,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37, skipping insertion in model container [2020-09-25 01:51:37,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:51:37" (1/1) ... [2020-09-25 01:51:37,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:51:37,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:51:37,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:51:37,747 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:51:37,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:51:37,960 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:51:37,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37 WrapperNode [2020-09-25 01:51:37,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:51:37,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:51:37,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:51:37,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:51:37,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37" (1/1) ... [2020-09-25 01:51:37,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37" (1/1) ... [2020-09-25 01:51:38,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37" (1/1) ... [2020-09-25 01:51:38,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37" (1/1) ... [2020-09-25 01:51:38,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37" (1/1) ... [2020-09-25 01:51:38,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37" (1/1) ... [2020-09-25 01:51:38,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37" (1/1) ... [2020-09-25 01:51:38,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:51:38,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:51:38,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:51:38,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:51:38,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:51:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:51:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:51:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:51:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:51:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:51:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:51:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:51:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:51:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:51:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:51:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:51:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:51:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:51:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:51:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:51:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:51:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-09-25 01:51:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-09-25 01:51:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-09-25 01:51:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-09-25 01:51:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-09-25 01:51:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-09-25 01:51:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:51:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-09-25 01:51:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-09-25 01:51:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:51:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:51:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:51:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:51:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:51:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:51:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:51:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:51:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:51:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:51:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:51:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:51:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:51:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:51:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:51:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:51:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:51:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:51:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:51:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:51:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:51:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:51:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:51:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:51:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:51:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:51:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:51:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:51:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:51:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:51:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:51:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:51:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:51:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:51:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:51:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:51:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:51:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:51:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:51:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:51:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:51:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:51:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:51:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:51:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:51:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:51:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:51:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:51:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:51:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:51:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:51:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:51:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:51:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:51:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:51:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:51:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:51:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:51:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:51:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:51:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:51:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:51:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:51:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:51:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:51:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:51:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:51:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:51:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-09-25 01:51:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:51:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-09-25 01:51:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-09-25 01:51:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:51:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-09-25 01:51:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-09-25 01:51:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:51:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-09-25 01:51:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-09-25 01:51:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-09-25 01:51:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:51:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:51:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:51:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:51:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:51:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:51:39,641 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:51:39,642 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:51:39,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:51:39 BoogieIcfgContainer [2020-09-25 01:51:39,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:51:39,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:51:39,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:51:39,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:51:39,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:51:37" (1/3) ... [2020-09-25 01:51:39,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e12e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:51:39, skipping insertion in model container [2020-09-25 01:51:39,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:37" (2/3) ... [2020-09-25 01:51:39,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e12e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:51:39, skipping insertion in model container [2020-09-25 01:51:39,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:51:39" (3/3) ... [2020-09-25 01:51:39,662 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-09-25 01:51:39,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:51:39,689 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:51:39,710 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:51:39,746 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:51:39,746 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:51:39,746 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:51:39,746 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:51:39,746 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:51:39,747 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:51:39,747 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:51:39,747 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:51:39,783 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-25 01:51:39,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 01:51:39,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:39,808 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:39,808 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:39,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:39,815 INFO L82 PathProgramCache]: Analyzing trace with hash 103979020, now seen corresponding path program 1 times [2020-09-25 01:51:39,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:39,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005219899] [2020-09-25 01:51:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:40,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:40,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:42,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:45,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:45,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-25 01:51:45,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:51:45,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-09-25 01:51:45,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:45,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:45,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-09-25 01:51:45,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:45,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:51:45,905 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 01:51:45,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:45,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:51:46,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-25 01:51:46,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:46,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 01:51:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:51:46,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:51:46,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:46,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 01:51:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:51:46,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 01:51:46,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:46,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:51:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:46,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:51:46,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:46,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 01:51:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:46,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:46,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:46,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 01:51:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:46,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:46,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:46,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 01:51:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:46,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:46,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:46,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 01:51:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:46,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:46,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:46,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 01:51:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:46,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:46,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:46,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 01:51:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:46,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:46,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 01:51:46,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:51:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:46,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:46,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:46,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-25 01:51:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:46,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:46,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:46,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-25 01:51:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:46,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:51:46,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:46,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-25 01:51:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:46,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:46,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:46,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:46,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:46,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:51:46,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:46,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:46,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:46,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:46,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 01:51:46,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005219899] [2020-09-25 01:51:46,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:46,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:51:46,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694555975] [2020-09-25 01:51:46,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:51:46,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:46,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:51:46,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:51:46,649 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 5 states. [2020-09-25 01:51:49,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:49,334 INFO L93 Difference]: Finished difference Result 688 states and 831 transitions. [2020-09-25 01:51:49,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 01:51:49,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-09-25 01:51:49,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:49,373 INFO L225 Difference]: With dead ends: 688 [2020-09-25 01:51:49,373 INFO L226 Difference]: Without dead ends: 433 [2020-09-25 01:51:49,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:51:49,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-25 01:51:49,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 375. [2020-09-25 01:51:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 01:51:49,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 422 transitions. [2020-09-25 01:51:49,570 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 422 transitions. Word has length 235 [2020-09-25 01:51:49,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:49,573 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 422 transitions. [2020-09-25 01:51:49,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:51:49,574 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 422 transitions. [2020-09-25 01:51:49,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-25 01:51:49,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:49,588 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:49,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:51:49,589 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:49,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:49,589 INFO L82 PathProgramCache]: Analyzing trace with hash 820894340, now seen corresponding path program 1 times [2020-09-25 01:51:49,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:49,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823890003] [2020-09-25 01:51:49,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:49,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:49,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:52,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:54,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:54,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 01:51:54,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:51:54,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 01:51:54,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:54,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-25 01:51:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:51:54,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:55,041 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 01:51:55,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:51:55,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 01:51:55,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:55,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 01:51:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:51:55,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:55,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:55,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 01:51:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:51:55,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 01:51:55,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:55,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:51:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:55,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:55,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:55,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 01:51:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:55,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:55,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:55,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 01:51:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:55,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:55,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 01:51:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:55,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:55,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:55,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 01:51:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:55,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:55,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:55,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 01:51:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:51:55,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:55,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:55,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 01:51:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:55,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:55,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:55,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:51:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:55,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:55,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:55,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 01:51:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:55,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:55,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:55,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 01:51:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:55,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:55,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:55,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-25 01:51:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:55,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:55,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:55,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:55,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:55,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:55,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:55,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 01:51:55,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823890003] [2020-09-25 01:51:55,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:55,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:51:55,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053344072] [2020-09-25 01:51:55,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:51:55,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:55,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:51:55,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:51:55,536 INFO L87 Difference]: Start difference. First operand 375 states and 422 transitions. Second operand 6 states. [2020-09-25 01:51:56,652 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 01:51:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:58,859 INFO L93 Difference]: Finished difference Result 597 states and 694 transitions. [2020-09-25 01:51:58,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 01:51:58,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 236 [2020-09-25 01:51:58,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:58,866 INFO L225 Difference]: With dead ends: 597 [2020-09-25 01:51:58,866 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 01:51:58,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:51:58,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 01:51:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 365. [2020-09-25 01:51:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 01:51:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 409 transitions. [2020-09-25 01:51:58,931 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 409 transitions. Word has length 236 [2020-09-25 01:51:58,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:58,932 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 409 transitions. [2020-09-25 01:51:58,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:51:58,932 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 409 transitions. [2020-09-25 01:51:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-25 01:51:58,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:58,936 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:58,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:51:58,937 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:58,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:58,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1884524892, now seen corresponding path program 1 times [2020-09-25 01:51:58,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:58,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096114217] [2020-09-25 01:51:58,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:59,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:59,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:04,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:04,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-09-25 01:52:04,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:52:04,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-09-25 01:52:04,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 01:52:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-25 01:52:04,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-09-25 01:52:04,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:04,477 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 01:52:04,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:04,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:04,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:04,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:52:04,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:04,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 01:52:04,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:04,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 01:52:04,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:04,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 01:52:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:04,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:04,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:04,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:52:04,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:04,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:52:04,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:04,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:04,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:52:04,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:04,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 01:52:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:04,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:04,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:04,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:52:04,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 01:52:04,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 01:52:04,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:52:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:04,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:04,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:04,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:04,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:04,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:04,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:04,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 01:52:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:04,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:04,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:04,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:04,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:04,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:04,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:04,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 01:52:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:04,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:04,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:04,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:04,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:04,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:04,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:04,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:04,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:05,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 01:52:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:05,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:05,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:05,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:05,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:05,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:05,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:05,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:05,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:05,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:05,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 01:52:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:05,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:05,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:05,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:05,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:05,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:05,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:05,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:05,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 01:52:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:05,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:05,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:05,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:05,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:05,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:05,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:05,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 01:52:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:05,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:05,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:05,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:05,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:05,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:52:05,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:52:05,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:05,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:52:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:05,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:05,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:05,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:05,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:05,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:52:05,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:52:05,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:05,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 01:52:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:05,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:05,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:05,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:05,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:05,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:05,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-25 01:52:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:05,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:05,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:05,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:05,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:05,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:05,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:05,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:05,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:05,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:05,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:05,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-25 01:52:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:05,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:05,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:05,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:05,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:05,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:05,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 01:52:05,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096114217] [2020-09-25 01:52:05,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:05,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:52:05,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478326238] [2020-09-25 01:52:05,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:52:05,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:05,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:52:05,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:52:05,136 INFO L87 Difference]: Start difference. First operand 365 states and 409 transitions. Second operand 6 states. [2020-09-25 01:52:05,786 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 01:52:09,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:09,935 INFO L93 Difference]: Finished difference Result 864 states and 1019 transitions. [2020-09-25 01:52:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 01:52:09,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 246 [2020-09-25 01:52:09,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:09,941 INFO L225 Difference]: With dead ends: 864 [2020-09-25 01:52:09,942 INFO L226 Difference]: Without dead ends: 651 [2020-09-25 01:52:09,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:52:09,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-09-25 01:52:10,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 568. [2020-09-25 01:52:10,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-09-25 01:52:10,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 652 transitions. [2020-09-25 01:52:10,083 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 652 transitions. Word has length 246 [2020-09-25 01:52:10,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:10,087 INFO L479 AbstractCegarLoop]: Abstraction has 568 states and 652 transitions. [2020-09-25 01:52:10,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:52:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 652 transitions. [2020-09-25 01:52:10,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-25 01:52:10,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:10,093 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:10,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:52:10,094 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:10,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:10,094 INFO L82 PathProgramCache]: Analyzing trace with hash 544054283, now seen corresponding path program 1 times [2020-09-25 01:52:10,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:10,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392207926] [2020-09-25 01:52:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:10,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:12,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:12,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-25 01:52:12,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2314 [2020-09-25 01:52:12,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 01:52:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-09-25 01:52:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-09-25 01:52:12,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:12,864 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-09-25 01:52:12,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:12,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:52:13,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 01:52:13,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:13,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 01:52:13,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 01:52:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:52:13,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:52:13,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:52:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 01:52:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 01:52:13,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 01:52:13,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:13,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 01:52:13,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:52:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:13,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:13,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:13,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:13,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-25 01:52:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:13,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:13,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:13,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:13,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 01:52:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:13,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:13,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:13,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:13,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 01:52:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:13,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:13,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:13,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 01:52:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:13,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:13,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:13,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 01:52:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:52:13,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:13,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:13,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 01:52:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:13,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:13,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:13,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:52:13,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:52:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:13,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:13,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:13,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:52:13,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 01:52:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:52:13,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:13,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:52:13,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-25 01:52:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:13,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:52:13,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:13,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:52:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:13,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-25 01:52:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:13,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:52:13,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:52:13,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:13,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:52:13,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-09-25 01:52:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:13,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:13,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:13,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:13,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:13,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:13,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:13,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:13,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:13,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:13,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:13,608 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 01:52:13,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392207926] [2020-09-25 01:52:13,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:13,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:52:13,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090113108] [2020-09-25 01:52:13,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:52:13,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:13,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:52:13,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:52:13,613 INFO L87 Difference]: Start difference. First operand 568 states and 652 transitions. Second operand 11 states. [2020-09-25 01:52:14,306 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-09-25 01:52:17,782 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-09-25 01:52:18,227 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2020-09-25 01:52:18,696 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-25 01:52:19,149 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-09-25 01:52:19,531 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-25 01:52:19,977 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-09-25 01:52:20,372 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-09-25 01:52:22,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:22,932 INFO L93 Difference]: Finished difference Result 1540 states and 1898 transitions. [2020-09-25 01:52:22,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 01:52:22,938 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2020-09-25 01:52:22,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:22,944 INFO L225 Difference]: With dead ends: 1540 [2020-09-25 01:52:22,944 INFO L226 Difference]: Without dead ends: 1124 [2020-09-25 01:52:22,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2020-09-25 01:52:22,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-09-25 01:52:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 995. [2020-09-25 01:52:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-09-25 01:52:23,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1170 transitions. [2020-09-25 01:52:23,097 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1170 transitions. Word has length 255 [2020-09-25 01:52:23,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:23,098 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1170 transitions. [2020-09-25 01:52:23,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 01:52:23,098 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1170 transitions. [2020-09-25 01:52:23,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-25 01:52:23,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:23,104 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:23,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:52:23,105 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:23,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:23,105 INFO L82 PathProgramCache]: Analyzing trace with hash -522870887, now seen corresponding path program 1 times [2020-09-25 01:52:23,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:23,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531265169] [2020-09-25 01:52:23,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:52:23,185 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:52:23,185 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:52:23,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:52:23,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:52:23 BoogieIcfgContainer [2020-09-25 01:52:23,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:52:23,221 INFO L168 Benchmark]: Toolchain (without parser) took 46129.44 ms. Allocated memory was 144.2 MB in the beginning and 761.8 MB in the end (delta: 617.6 MB). Free memory was 103.0 MB in the beginning and 593.3 MB in the end (delta: -490.4 MB). Peak memory consumption was 127.2 MB. Max. memory is 7.1 GB. [2020-09-25 01:52:23,222 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 144.2 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 01:52:23,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 859.50 ms. Allocated memory was 144.2 MB in the beginning and 204.5 MB in the end (delta: 60.3 MB). Free memory was 102.3 MB in the beginning and 169.7 MB in the end (delta: -67.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:52:23,224 INFO L168 Benchmark]: Boogie Preprocessor took 100.87 ms. Allocated memory is still 204.5 MB. Free memory was 169.7 MB in the beginning and 164.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:52:23,225 INFO L168 Benchmark]: RCFGBuilder took 1587.20 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 164.8 MB in the beginning and 157.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2020-09-25 01:52:23,226 INFO L168 Benchmark]: TraceAbstraction took 43568.20 ms. Allocated memory was 235.4 MB in the beginning and 761.8 MB in the end (delta: 526.4 MB). Free memory was 157.5 MB in the beginning and 593.3 MB in the end (delta: -435.8 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. [2020-09-25 01:52:23,230 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 144.2 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 859.50 ms. Allocated memory was 144.2 MB in the beginning and 204.5 MB in the end (delta: 60.3 MB). Free memory was 102.3 MB in the beginning and 169.7 MB in the end (delta: -67.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.87 ms. Allocated memory is still 204.5 MB. Free memory was 169.7 MB in the beginning and 164.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1587.20 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 164.8 MB in the beginning and 157.5 MB in the end (delta: 7.3 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43568.20 ms. Allocated memory was 235.4 MB in the beginning and 761.8 MB in the end (delta: 526.4 MB). Free memory was 157.5 MB in the beginning and 593.3 MB in the end (delta: -435.8 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L510] int __SELECTED_FEATURE_base ; [L511] int __SELECTED_FEATURE_highWaterSensor ; [L512] int __SELECTED_FEATURE_lowWaterSensor ; [L513] int __SELECTED_FEATURE_methaneQuery ; [L514] int __SELECTED_FEATURE_methaneAlarm ; [L515] int __SELECTED_FEATURE_stopCommand ; [L516] int __SELECTED_FEATURE_startCommand ; [L517] int __GUIDSL_ROOT_PRODUCTION ; [L605] int pumpRunning = 0; [L606] int systemActive = 1; [L1027] int waterLevel = 1; [L1028] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] CALL select_helpers() [L968] __GUIDSL_ROOT_PRODUCTION = 1 [L492] RET select_helpers() [L493] CALL select_features() [L953] __SELECTED_FEATURE_base = 1 [L954] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L954] RET, EXPR select_one() [L954] __SELECTED_FEATURE_highWaterSensor = select_one() [L955] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L955] RET, EXPR select_one() [L955] __SELECTED_FEATURE_lowWaterSensor = select_one() [L956] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_methaneQuery = select_one() [L957] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_methaneAlarm = select_one() [L958] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_stopCommand = select_one() [L959] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_startCommand = select_one() [L493] RET select_features() [L494] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = __SELECTED_FEATURE_base [L977] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L1045] COND TRUE waterLevel < 2 [L1046] waterLevel = waterLevel + 1 [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L570] tmp___1 = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp___1) [L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L575] CALL stopSystem() [L917] COND FALSE !(\read(pumpRunning)) [L924] systemActive = 0 [L575] RET stopSystem() [L585] CALL timeShift() [L613] COND FALSE !(\read(pumpRunning)) [L620] COND FALSE !(\read(systemActive)) [L628] CALL __utac_acc__Specification3_spec__1() [L985] int tmp ; [L986] int tmp___0 ; [L987] int tmp___1 ; [L991] CALL, EXPR isMethaneLevelCritical() [L1066] int retValue_acc ; [L1069] retValue_acc = methaneLevelCritical [L1070] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L997] CALL, EXPR getWaterLevel() [L1098] int retValue_acc ; [L1101] retValue_acc = waterLevel [L1102] return (retValue_acc); [L997] RET, EXPR getWaterLevel() [L997] tmp___0 = getWaterLevel() [L999] COND TRUE tmp___0 == 2 [L1001] CALL, EXPR isPumpRunning() [L831] int retValue_acc ; [L834] retValue_acc = pumpRunning [L835] return (retValue_acc); [L1001] RET, EXPR isPumpRunning() [L1001] tmp___1 = isPumpRunning() [L1003] COND FALSE !(\read(tmp___1)) [L1007] CALL __automaton_fail() [L1022] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 730 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 43.4s, OverallIterations: 5, TraceHistogramMax: 6, AutomataDifference: 20.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1372 SDtfs, 2904 SDslu, 902 SDs, 0 SdLazy, 3989 SolverSat, 1149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=995occurred 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: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 321 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 1232 NumberOfCodeBlocks, 1232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 968 ConstructedInterpolants, 0 QuantifiedInterpolants, 514260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 480/480 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...