/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:56:42,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:56:42,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:56:42,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:56:42,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:56:42,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:56:42,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:56:42,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:56:42,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:56:42,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:56:42,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:56:42,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:56:42,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:56:42,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:56:42,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:56:42,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:56:42,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:56:42,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:56:42,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:56:42,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:56:42,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:56:42,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:56:42,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:56:42,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:56:42,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:56:42,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:56:42,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:56:42,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:56:42,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:56:42,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:56:42,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:56:42,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:56:42,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:56:42,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:56:42,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:56:42,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:56:42,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:56:42,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:56:42,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:56:42,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:56:42,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:56:42,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:56:42,533 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:56:42,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:56:42,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:56:42,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:56:42,535 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:56:42,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:56:42,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:56:42,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:56:42,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:56:42,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:56:42,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:56:42,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:56:42,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:56:42,538 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:56:42,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:56:42,538 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:56:42,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:56:42,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:56:42,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:56:42,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:56:42,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:56:42,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:56:42,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:56:42,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:56:42,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:56:42,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:56:42,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:56:42,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:56:42,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:56:42,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:56:43,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:56:43,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:56:43,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:56:43,032 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:56:43,032 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:56:43,034 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2020-09-25 01:56:43,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3230b60e6/5cb2b13d14284d47957c0fabc4373583/FLAG84013a276 [2020-09-25 01:56:43,707 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:56:43,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2020-09-25 01:56:43,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3230b60e6/5cb2b13d14284d47957c0fabc4373583/FLAG84013a276 [2020-09-25 01:56:43,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3230b60e6/5cb2b13d14284d47957c0fabc4373583 [2020-09-25 01:56:43,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:56:43,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:56:43,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:56:43,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:56:43,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:56:43,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:56:43" (1/1) ... [2020-09-25 01:56:43,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68320178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:43, skipping insertion in model container [2020-09-25 01:56:43,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:56:43" (1/1) ... [2020-09-25 01:56:43,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:56:44,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:56:44,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:56:44,627 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:56:44,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:56:44,739 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:56:44,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44 WrapperNode [2020-09-25 01:56:44,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:56:44,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:56:44,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:56:44,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:56:44,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44" (1/1) ... [2020-09-25 01:56:44,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44" (1/1) ... [2020-09-25 01:56:44,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44" (1/1) ... [2020-09-25 01:56:44,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44" (1/1) ... [2020-09-25 01:56:44,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44" (1/1) ... [2020-09-25 01:56:44,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44" (1/1) ... [2020-09-25 01:56:44,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44" (1/1) ... [2020-09-25 01:56:44,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:56:44,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:56:44,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:56:44,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:56:44,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:56:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:56:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:56:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:56:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:56:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:56:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:56:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:56:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:56:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:56:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:56:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:56:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:56:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:56:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:56:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:56:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:56:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:56:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:56:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:56:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:56:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:56:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:56:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:56:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:56:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:56:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:56:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:56:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:56:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:56:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:56:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:56:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:56:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:56:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:56:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:56:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:56:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:56:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:56:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:56:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:56:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:56:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:56:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:56:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:56:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:56:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:56:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:56:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:56:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:56:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:56:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:56:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:56:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:56:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:56:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:56:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:56:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:56:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:56:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:56:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:56:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:56:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:56:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:56:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:56:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:56:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:56:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:56:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:56:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:56:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:56:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:56:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:56:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:56:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:56:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:56:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:56:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:56:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:56:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:56:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:56:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:56:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:56:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:56:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:56:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:56:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:56:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:56:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:56:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:56:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:56:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:56:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:56:46,081 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:56:46,081 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:56:46,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:56:46 BoogieIcfgContainer [2020-09-25 01:56:46,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:56:46,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:56:46,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:56:46,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:56:46,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:56:43" (1/3) ... [2020-09-25 01:56:46,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7e9289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:56:46, skipping insertion in model container [2020-09-25 01:56:46,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:44" (2/3) ... [2020-09-25 01:56:46,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7e9289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:56:46, skipping insertion in model container [2020-09-25 01:56:46,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:56:46" (3/3) ... [2020-09-25 01:56:46,097 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2020-09-25 01:56:46,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:56:46,123 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:56:46,146 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:56:46,178 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:56:46,179 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:56:46,179 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:56:46,179 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:56:46,179 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:56:46,179 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:56:46,179 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:56:46,179 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:56:46,203 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-25 01:56:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:56:46,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:56:46,222 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 01:56:46,223 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:56:46,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:56:46,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1855283270, now seen corresponding path program 1 times [2020-09-25 01:56:46,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:56:46,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165736519] [2020-09-25 01:56:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:56:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:46,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:46,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:47,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:47,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:49,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:51,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:51,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:56:51,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:56:51,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 01:56:51,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:56:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:51,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 40 [2020-09-25 01:56:52,129 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:52,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:56:52,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 01:56:52,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:52,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:52,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:56:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:52,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:52,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:52,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:56:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:52,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:52,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:52,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:56:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:52,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:56:52,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:52,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:52,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:56:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:52,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:52,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:52,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:52,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:56:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:52,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:52,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:52,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:52,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:56:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:56:52,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:56:52,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:56:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:52,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:52,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:52,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:52,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:52,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:56:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:52,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:52,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:52,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:52,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:56:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:52,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:52,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:52,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:52,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:52,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:52,476 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 01:56:52,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165736519] [2020-09-25 01:56:52,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:56:52,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:56:52,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781743845] [2020-09-25 01:56:52,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:56:52,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:56:52,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:56:52,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:56:52,514 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 4 states. [2020-09-25 01:56:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:56:53,788 INFO L93 Difference]: Finished difference Result 437 states and 514 transitions. [2020-09-25 01:56:53,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:56:53,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:56:53,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:56:53,816 INFO L225 Difference]: With dead ends: 437 [2020-09-25 01:56:53,816 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 01:56:53,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:56:53,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 01:56:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-25 01:56:53,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 01:56:53,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 260 transitions. [2020-09-25 01:56:53,954 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 260 transitions. Word has length 160 [2020-09-25 01:56:53,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:56:53,955 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 260 transitions. [2020-09-25 01:56:53,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:56:53,956 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 260 transitions. [2020-09-25 01:56:53,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:56:53,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:56:53,961 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] [2020-09-25 01:56:53,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:56:53,962 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:56:53,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:56:53,962 INFO L82 PathProgramCache]: Analyzing trace with hash 494679854, now seen corresponding path program 1 times [2020-09-25 01:56:53,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:56:53,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287947954] [2020-09-25 01:56:53,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:56:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:54,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:54,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:54,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:54,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:57,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:56:59,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:56:59,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-09-25 01:56:59,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:59,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:56:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:56:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:59,432 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:59,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:56:59,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 01:56:59,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:59,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:59,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:56:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:59,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:56:59,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:59,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:56:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:59,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:59,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:59,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:56:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:59,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:59,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:59,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:59,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:56:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:59,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:59,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:59,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:56:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:59,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:59,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:56:59,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:56:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:56:59,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:59,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:56:59,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:59,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:59,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:59,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:59,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:59,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:56:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:59,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:59,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:59,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:59,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:56:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:59,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:59,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:59,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:59,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:59,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:59,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:59,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:59,709 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 01:56:59,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287947954] [2020-09-25 01:56:59,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:56:59,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:56:59,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194080761] [2020-09-25 01:56:59,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:56:59,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:56:59,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:56:59,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:56:59,715 INFO L87 Difference]: Start difference. First operand 240 states and 260 transitions. Second operand 5 states. [2020-09-25 01:57:00,431 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:01,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:01,202 INFO L93 Difference]: Finished difference Result 366 states and 410 transitions. [2020-09-25 01:57:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:57:01,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:57:01,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:01,213 INFO L225 Difference]: With dead ends: 366 [2020-09-25 01:57:01,213 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 01:57:01,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:57:01,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 01:57:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-09-25 01:57:01,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 01:57:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 247 transitions. [2020-09-25 01:57:01,272 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 247 transitions. Word has length 161 [2020-09-25 01:57:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:01,273 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 247 transitions. [2020-09-25 01:57:01,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:57:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 247 transitions. [2020-09-25 01:57:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 01:57:01,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:01,276 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] [2020-09-25 01:57:01,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:57:01,276 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:01,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:01,277 INFO L82 PathProgramCache]: Analyzing trace with hash 963263980, now seen corresponding path program 1 times [2020-09-25 01:57:01,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:01,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589149578] [2020-09-25 01:57:01,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:01,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:01,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:01,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:03,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 01:57:06,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:57:06,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:57:06,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:57:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:57:06,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:57:06,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:06,643 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:06,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:06,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 01:57:06,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:06,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:06,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:06,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:06,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:06,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:06,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:06,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:06,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:06,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:06,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:06,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:06,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:06,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:06,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:06,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:06,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:06,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:06,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:06,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:06,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:57:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:06,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:06,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:06,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:06,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:06,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:06,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:06,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:06,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:57:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:06,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:06,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:06,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:06,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:06,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:57:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:06,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:06,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:06,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:06,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:06,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:57:06,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:06,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:06,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:06,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:07,009 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 01:57:07,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589149578] [2020-09-25 01:57:07,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:07,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:57:07,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98512548] [2020-09-25 01:57:07,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:57:07,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:07,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:57:07,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:57:07,012 INFO L87 Difference]: Start difference. First operand 230 states and 247 transitions. Second operand 9 states. [2020-09-25 01:57:07,587 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:57:08,548 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:08,863 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:57:09,864 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:57:10,158 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:10,508 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:11,012 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:11,338 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:57:11,658 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:11,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:11,961 INFO L93 Difference]: Finished difference Result 465 states and 535 transitions. [2020-09-25 01:57:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:57:11,962 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 01:57:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:11,968 INFO L225 Difference]: With dead ends: 465 [2020-09-25 01:57:11,968 INFO L226 Difference]: Without dead ends: 350 [2020-09-25 01:57:11,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 01:57:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-09-25 01:57:12,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 305. [2020-09-25 01:57:12,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-09-25 01:57:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 334 transitions. [2020-09-25 01:57:12,016 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 334 transitions. Word has length 170 [2020-09-25 01:57:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:12,017 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 334 transitions. [2020-09-25 01:57:12,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:57:12,018 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 334 transitions. [2020-09-25 01:57:12,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 01:57:12,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:12,021 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] [2020-09-25 01:57:12,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:57:12,021 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:12,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:12,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1456714666, now seen corresponding path program 1 times [2020-09-25 01:57:12,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:12,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448670607] [2020-09-25 01:57:12,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:12,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:12,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:12,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-25 01:57:12,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:12,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-09-25 01:57:12,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:12,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:12,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-25 01:57:12,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:57:12,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,045 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:13,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:13,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 01:57:13,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:13,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:13,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:13,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:13,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:13,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:13,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:13,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:13,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:13,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:13,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:13,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:13,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:13,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:57:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:13,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:13,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:13,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:13,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:13,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:57:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:57:13,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 01:57:13,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:57:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:57:13,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:57:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:57:13,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 01:57:13,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:57:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:57:13,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:13,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:57:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:57:13,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:57:13,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:57:13,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:13,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:13,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:13,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:57:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:13,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:13,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:57:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:13,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 01:57:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:13,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:13,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:13,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 01:57:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:13,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:13,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:13,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:13,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:13,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:13,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:13,549 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 01:57:13,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448670607] [2020-09-25 01:57:13,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:13,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:57:13,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554407775] [2020-09-25 01:57:13,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:57:13,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:13,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:57:13,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:57:13,553 INFO L87 Difference]: Start difference. First operand 305 states and 334 transitions. Second operand 9 states. [2020-09-25 01:57:15,208 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:15,457 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:57:15,726 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:16,095 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:57:16,399 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:16,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:16,984 INFO L93 Difference]: Finished difference Result 571 states and 670 transitions. [2020-09-25 01:57:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:57:16,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 203 [2020-09-25 01:57:16,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:16,990 INFO L225 Difference]: With dead ends: 571 [2020-09-25 01:57:16,990 INFO L226 Difference]: Without dead ends: 381 [2020-09-25 01:57:16,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:57:16,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-09-25 01:57:17,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 314. [2020-09-25 01:57:17,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-09-25 01:57:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 344 transitions. [2020-09-25 01:57:17,036 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 344 transitions. Word has length 203 [2020-09-25 01:57:17,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:17,037 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 344 transitions. [2020-09-25 01:57:17,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:57:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 344 transitions. [2020-09-25 01:57:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 01:57:17,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:17,040 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] [2020-09-25 01:57:17,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:57:17,041 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:17,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:17,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1698458806, now seen corresponding path program 1 times [2020-09-25 01:57:17,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:17,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894674064] [2020-09-25 01:57:17,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:17,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:17,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:17,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-25 01:57:17,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:17,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 892 [2020-09-25 01:57:17,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:17,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:57:17,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-25 01:57:17,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:57:17,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,288 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:18,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:18,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 01:57:18,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:18,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:18,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:18,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:18,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:18,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:18,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:18,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:18,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:18,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:18,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:18,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:18,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:57:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:18,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:18,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:18,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:18,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:57:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:57:18,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 01:57:18,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:57:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:57:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:57:18,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:57:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:57:18,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 01:57:18,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:18,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:57:18,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:57:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:57:18,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:18,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:18,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:57:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:18,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:18,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:57:18,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 01:57:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:18,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:18,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 01:57:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:18,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:18,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:18,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:18,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:18,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:18,755 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 01:57:18,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894674064] [2020-09-25 01:57:18,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:18,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:57:18,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147496881] [2020-09-25 01:57:18,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:57:18,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:18,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:57:18,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:57:18,758 INFO L87 Difference]: Start difference. First operand 314 states and 344 transitions. Second operand 10 states. [2020-09-25 01:57:20,273 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:20,565 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:57:20,869 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:57:21,178 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:21,512 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:57:21,791 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:22,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:22,237 INFO L93 Difference]: Finished difference Result 583 states and 675 transitions. [2020-09-25 01:57:22,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:57:22,238 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 203 [2020-09-25 01:57:22,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:22,241 INFO L225 Difference]: With dead ends: 583 [2020-09-25 01:57:22,242 INFO L226 Difference]: Without dead ends: 384 [2020-09-25 01:57:22,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:57:22,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-09-25 01:57:22,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 322. [2020-09-25 01:57:22,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-09-25 01:57:22,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 352 transitions. [2020-09-25 01:57:22,277 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 352 transitions. Word has length 203 [2020-09-25 01:57:22,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:22,277 INFO L479 AbstractCegarLoop]: Abstraction has 322 states and 352 transitions. [2020-09-25 01:57:22,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:57:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 352 transitions. [2020-09-25 01:57:22,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 01:57:22,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:22,281 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] [2020-09-25 01:57:22,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:57:22,281 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:22,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:22,281 INFO L82 PathProgramCache]: Analyzing trace with hash -674408025, now seen corresponding path program 1 times [2020-09-25 01:57:22,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:22,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206262508] [2020-09-25 01:57:22,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:22,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:23,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:23,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-25 01:57:23,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:23,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1230 [2020-09-25 01:57:23,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:23,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 01:57:23,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 01:57:23,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 01:57:23,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:23,833 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:23,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:23,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:24,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-25 01:57:24,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 01:57:24,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:24,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:57:24,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:24,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:57:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:24,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:57:24,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:57:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:24,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:24,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:57:24,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:57:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:24,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:24,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:57:24,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:24,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:24,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:57:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:57:24,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 01:57:24,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 01:57:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 01:57:24,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:57:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:57:24,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:57:24,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:57:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:57:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:57:24,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:24,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:57:24,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:57:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:24,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:24,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:57:24,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 01:57:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:24,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:24,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 01:57:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:24,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:24,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,284 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 01:57:24,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206262508] [2020-09-25 01:57:24,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:24,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:57:24,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071280251] [2020-09-25 01:57:24,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:57:24,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:24,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:57:24,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:57:24,287 INFO L87 Difference]: Start difference. First operand 322 states and 352 transitions. Second operand 7 states. [2020-09-25 01:57:24,809 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:57:26,031 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:57:27,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:27,805 INFO L93 Difference]: Finished difference Result 948 states and 1157 transitions. [2020-09-25 01:57:27,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 01:57:27,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-09-25 01:57:27,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:27,812 INFO L225 Difference]: With dead ends: 948 [2020-09-25 01:57:27,813 INFO L226 Difference]: Without dead ends: 741 [2020-09-25 01:57:27,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:57:27,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-09-25 01:57:27,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 627. [2020-09-25 01:57:27,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2020-09-25 01:57:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 722 transitions. [2020-09-25 01:57:27,899 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 722 transitions. Word has length 203 [2020-09-25 01:57:27,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:27,900 INFO L479 AbstractCegarLoop]: Abstraction has 627 states and 722 transitions. [2020-09-25 01:57:27,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:57:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 722 transitions. [2020-09-25 01:57:27,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 01:57:27,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:27,910 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] [2020-09-25 01:57:27,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 01:57:27,910 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:27,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:27,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1071578610, now seen corresponding path program 1 times [2020-09-25 01:57:27,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:27,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981550047] [2020-09-25 01:57:27,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:28,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:28,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking...