/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=WIDEST --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_spec5_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:05:40,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:05:40,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:05:40,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:05:40,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:05:40,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:05:40,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:05:40,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:05:40,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:05:40,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:05:40,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:05:40,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:05:40,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:05:40,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:05:40,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:05:40,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:05:40,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:05:40,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:05:40,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:05:40,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:05:40,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:05:40,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:05:40,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:05:40,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:05:40,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:05:40,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:05:40,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:05:40,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:05:40,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:05:40,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:05:40,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:05:40,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:05:40,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:05:40,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:05:40,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:05:40,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:05:40,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:05:40,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:05:40,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:05:40,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:05:40,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:05:40,373 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 03:05:40,428 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:05:40,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:05:40,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:05:40,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:05:40,434 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:05:40,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:05:40,434 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:05:40,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:05:40,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:05:40,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:05:40,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:05:40,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:05:40,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:05:40,437 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:05:40,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:05:40,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:05:40,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:05:40,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:05:40,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:05:40,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:05:40,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:05:40,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:05:40,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:05:40,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:05:40,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:05:40,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:05:40,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:05:40,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:05:40,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:05:40,441 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:05:40,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:05:40,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:05:40,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:05:40,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:05:40,922 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:05:40,922 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-09-25 03:05:41,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6417da5b2/193dfb8f1455459e9b614549be2290c2/FLAG76aa4dadb [2020-09-25 03:05:41,623 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:05:41,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-09-25 03:05:41,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6417da5b2/193dfb8f1455459e9b614549be2290c2/FLAG76aa4dadb [2020-09-25 03:05:41,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6417da5b2/193dfb8f1455459e9b614549be2290c2 [2020-09-25 03:05:41,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:05:41,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:05:41,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:05:41,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:05:41,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:05:41,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:05:41" (1/1) ... [2020-09-25 03:05:41,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:41, skipping insertion in model container [2020-09-25 03:05:41,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:05:41" (1/1) ... [2020-09-25 03:05:41,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:05:42,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:05:42,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:05:42,534 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:05:42,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:05:42,661 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:05:42,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42 WrapperNode [2020-09-25 03:05:42,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:05:42,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:05:42,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:05:42,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:05:42,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42" (1/1) ... [2020-09-25 03:05:42,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42" (1/1) ... [2020-09-25 03:05:42,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42" (1/1) ... [2020-09-25 03:05:42,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42" (1/1) ... [2020-09-25 03:05:42,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42" (1/1) ... [2020-09-25 03:05:42,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42" (1/1) ... [2020-09-25 03:05:42,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42" (1/1) ... [2020-09-25 03:05:42,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:05:42,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:05:42,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:05:42,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:05:42,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42" (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 03:05:42,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:05:42,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:05:42,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:05:42,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:05:42,871 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:05:42,871 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 03:05:42,871 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:05:42,872 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:05:42,872 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:05:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:05:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:05:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:05:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:05:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 03:05:42,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 03:05:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 03:05:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:05:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:05:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:05:42,876 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:05:42,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:05:42,877 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:05:42,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:05:42,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 03:05:42,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 03:05:42,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:05:42,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:05:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:05:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:05:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:05:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:05:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:05:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:05:42,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:05:42,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:05:42,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:05:42,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:05:42,880 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:05:42,880 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:05:42,880 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:05:42,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:05:42,882 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:05:42,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:05:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:05:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:05:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:05:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:05:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:05:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:05:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:05:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 03:05:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 03:05:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:05:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:05:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:05:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:05:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:05:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 03:05:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:05:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:05:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:05:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 03:05:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 03:05:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:05:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 03:05:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:05:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:05:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:05:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:05:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:05:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:05:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:05:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:05:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:05:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:05:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:05:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:05:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:05:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:05:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:05:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:05:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:05:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:05:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:05:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:05:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:05:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:05:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:05:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:05:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:05:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:05:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:05:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:05:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:05:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:05:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:05:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:05:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:05:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:05:42,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:05:44,061 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:05:44,061 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:05:44,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:05:44 BoogieIcfgContainer [2020-09-25 03:05:44,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:05:44,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:05:44,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:05:44,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:05:44,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:05:41" (1/3) ... [2020-09-25 03:05:44,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625aad77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:05:44, skipping insertion in model container [2020-09-25 03:05:44,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:05:42" (2/3) ... [2020-09-25 03:05:44,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625aad77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:05:44, skipping insertion in model container [2020-09-25 03:05:44,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:05:44" (3/3) ... [2020-09-25 03:05:44,079 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2020-09-25 03:05:44,091 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:05:44,103 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:05:44,126 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:05:44,158 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:05:44,158 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:05:44,158 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:05:44,159 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:05:44,159 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:05:44,159 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:05:44,159 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:05:44,159 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:05:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-25 03:05:44,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 03:05:44,208 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:44,210 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:05:44,211 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:44,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:44,219 INFO L82 PathProgramCache]: Analyzing trace with hash -68792430, now seen corresponding path program 1 times [2020-09-25 03:05:44,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:44,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003928956] [2020-09-25 03:05:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:44,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:44,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:46,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:46,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:49,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:49,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:49,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 03:05:49,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:05:49,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-09-25 03:05:49,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:49,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:05:49,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:05:49,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 03:05:49,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 03:05:50,256 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:05:50,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:05:50,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-25 03:05:50,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:50,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:05:50,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:50,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:05:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:50,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:50,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:50,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:50,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:05:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:50,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:50,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:50,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:50,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:50,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:05:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:50,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:05:50,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:50,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:05:50,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:50,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:05:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:50,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:50,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:50,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:50,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:50,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:05:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:50,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:50,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:50,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:05:50,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:50,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:05:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:05:50,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:05:50,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:50,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:05:50,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:50,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:50,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:50,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:50,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:50,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:50,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 03:05:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:50,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:50,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:50,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:05:50,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:50,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 03:05:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:50,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:50,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:50,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:05:50,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:50,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:05:50,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:05:50,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003928956] [2020-09-25 03:05:50,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:05:50,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 03:05:50,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284156096] [2020-09-25 03:05:50,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:05:50,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:05:50,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:05:50,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:05:50,940 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 9 states. [2020-09-25 03:05:51,582 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:52,351 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:52,643 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:54,052 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:54,367 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:54,697 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:55,131 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:55,485 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:55,798 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:56,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:56,632 INFO L93 Difference]: Finished difference Result 628 states and 756 transitions. [2020-09-25 03:05:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:05:56,634 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 03:05:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:56,659 INFO L225 Difference]: With dead ends: 628 [2020-09-25 03:05:56,660 INFO L226 Difference]: Without dead ends: 423 [2020-09-25 03:05:56,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:05:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-09-25 03:05:56,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 375. [2020-09-25 03:05:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-25 03:05:56,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 419 transitions. [2020-09-25 03:05:56,803 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 419 transitions. Word has length 160 [2020-09-25 03:05:56,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:56,804 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 419 transitions. [2020-09-25 03:05:56,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:05:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 419 transitions. [2020-09-25 03:05:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 03:05:56,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:56,813 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:05:56,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:05:56,813 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:56,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:56,814 INFO L82 PathProgramCache]: Analyzing trace with hash 153833492, now seen corresponding path program 1 times [2020-09-25 03:05:56,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:56,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372861596] [2020-09-25 03:05:56,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:56,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:57,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:57,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:57,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:00,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:01,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:01,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-09-25 03:06:01,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:06:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 03:06:01,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:06:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 03:06:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 03:06:01,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:02,284 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:06:02,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:06:02,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 03:06:02,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:02,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:06:02,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:02,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:06:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:02,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:06:02,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:02,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:06:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:06:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:02,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:06:02,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:06:02,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:02,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:06:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:02,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:06:02,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:02,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:06:02,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:02,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:06:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:02,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:06:02,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:06:02,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:02,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:06:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:06:02,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:06:02,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:06:02,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:02,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:06:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:06:02,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 03:06:02,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:06:02,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:06:02,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 03:06:02,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:02,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:06:02,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:06:02,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:06:02,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:02,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:02,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:02,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:02,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:02,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:02,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:06:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:06:02,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:06:02,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:06:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:06:02,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:02,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:06:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:02,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:06:02,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:06:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:06:02,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:02,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 03:06:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:06:02,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:06:02,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:06:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:02,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:02,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:02,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:02,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:02,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:02,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:02,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:02,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:02,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:02,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:06:02,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 03:06:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:02,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:02,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:03,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:03,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:06:03,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:06:03,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 03:06:03,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:06:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 03:06:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:06:03,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:03,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:06:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:03,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:03,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:03,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:06:03,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 03:06:03,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:06:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 03:06:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:06:03,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:03,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:06:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:03,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:03,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:03,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:06:03,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:03,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 03:06:03,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:06:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:03,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:06:03,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:03,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:06:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:03,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:03,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:03,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:06:03,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:03,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:06:03,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:03,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:03,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:03,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:03,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:03,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:06:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:03,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:03,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:03,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:06:03,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:03,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:03,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:03,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:03,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:06:03,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:03,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:03,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 03:06:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:03,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:03,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:03,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:03,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:03,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:03,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:06:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:03,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:03,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-25 03:06:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:03,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:03,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:03,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:03,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:03,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:03,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:03,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:06:03,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:03,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:03,555 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 03:06:03,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372861596] [2020-09-25 03:06:03,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:06:03,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 03:06:03,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043398069] [2020-09-25 03:06:03,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 03:06:03,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:06:03,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 03:06:03,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:06:03,562 INFO L87 Difference]: Start difference. First operand 375 states and 419 transitions. Second operand 19 states. [2020-09-25 03:06:04,117 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:06:05,554 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 03:06:06,387 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:06,742 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:07,381 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 03:06:08,087 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 03:06:08,710 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 03:06:09,357 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:09,732 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 03:06:10,346 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 03:06:10,683 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 03:06:11,268 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-09-25 03:06:11,619 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:12,028 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 03:06:12,372 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:06:13,498 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-09-25 03:06:14,157 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 197 [2020-09-25 03:06:14,873 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 200 [2020-09-25 03:06:15,564 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-09-25 03:06:16,320 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 198 [2020-09-25 03:06:16,951 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-25 03:06:17,911 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:06:18,234 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:18,564 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:18,878 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 03:06:19,180 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:19,597 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:19,916 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:06:20,269 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 03:06:20,614 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:20,957 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 03:06:21,275 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:24,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:06:24,639 INFO L93 Difference]: Finished difference Result 1428 states and 1997 transitions. [2020-09-25 03:06:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-09-25 03:06:24,640 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 235 [2020-09-25 03:06:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:06:24,653 INFO L225 Difference]: With dead ends: 1428 [2020-09-25 03:06:24,653 INFO L226 Difference]: Without dead ends: 1168 [2020-09-25 03:06:24,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=862, Invalid=3830, Unknown=0, NotChecked=0, Total=4692 [2020-09-25 03:06:24,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2020-09-25 03:06:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 895. [2020-09-25 03:06:24,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-09-25 03:06:24,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1096 transitions. [2020-09-25 03:06:24,904 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1096 transitions. Word has length 235 [2020-09-25 03:06:24,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:06:24,906 INFO L479 AbstractCegarLoop]: Abstraction has 895 states and 1096 transitions. [2020-09-25 03:06:24,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 03:06:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1096 transitions. [2020-09-25 03:06:24,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 03:06:24,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:06:24,911 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:24,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:06:24,912 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:06:24,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:06:24,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1702291301, now seen corresponding path program 1 times [2020-09-25 03:06:24,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:06:24,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401837781] [2020-09-25 03:06:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:06:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:25,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:25,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:25,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-25 03:06:25,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:25,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-09-25 03:06:25,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:06:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-25 03:06:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:06:25,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,096 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:06:26,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:06:26,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 03:06:26,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:06:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:26,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:26,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:06:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:26,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:26,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:06:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:26,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:06:26,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:26,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:06:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:26,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:26,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:06:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:06:26,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:26,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 03:06:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:06:26,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:06:26,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 03:06:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:06:26,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:26,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:26,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:26,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 03:06:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:06:26,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 03:06:26,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:06:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 03:06:26,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:06:26,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:26,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:06:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:06:26,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 03:06:26,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:06:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:06:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:06:26,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:06:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:06:26,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 03:06:26,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:06:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:06:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:06:26,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:06:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:06:26,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:06:26,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:06:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:06:26,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:06:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:06:26,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:06:26,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:06:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 03:06:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:26,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:26,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:06:26,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 03:06:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:26,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:26,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:26,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:26,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:26,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:06:26,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:26,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:26,630 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:06:26,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401837781] [2020-09-25 03:06:26,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:06:26,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 03:06:26,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506443493] [2020-09-25 03:06:26,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:06:26,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:06:26,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:06:26,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:06:26,634 INFO L87 Difference]: Start difference. First operand 895 states and 1096 transitions. Second operand 10 states. [2020-09-25 03:06:28,077 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:06:28,361 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:06:28,651 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:06:28,935 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:06:29,216 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:06:30,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:06:30,526 INFO L93 Difference]: Finished difference Result 1852 states and 2547 transitions. [2020-09-25 03:06:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:06:30,527 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-25 03:06:30,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:06:30,542 INFO L225 Difference]: With dead ends: 1852 [2020-09-25 03:06:30,542 INFO L226 Difference]: Without dead ends: 1060 [2020-09-25 03:06:30,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:06:30,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-09-25 03:06:30,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 772. [2020-09-25 03:06:30,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2020-09-25 03:06:30,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 927 transitions. [2020-09-25 03:06:30,694 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 927 transitions. Word has length 212 [2020-09-25 03:06:30,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:06:30,696 INFO L479 AbstractCegarLoop]: Abstraction has 772 states and 927 transitions. [2020-09-25 03:06:30,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:06:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 927 transitions. [2020-09-25 03:06:30,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-25 03:06:30,701 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:06:30,702 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:30,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:06:30,702 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:06:30,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:06:30,703 INFO L82 PathProgramCache]: Analyzing trace with hash 189455064, now seen corresponding path program 1 times [2020-09-25 03:06:30,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:06:30,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418225275] [2020-09-25 03:06:30,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:06:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:30,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:30,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:31,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:31,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:32,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:32,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:34,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking...