/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=HIGHLEXORDER --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_spec2_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:26:11,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:26:11,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:26:11,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:26:11,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:26:11,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:26:11,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:26:11,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:26:11,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:26:11,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:26:11,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:26:11,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:26:11,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:26:11,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:26:11,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:26:11,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:26:11,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:26:11,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:26:11,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:26:11,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:26:11,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:26:11,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:26:11,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:26:11,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:26:11,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:26:11,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:26:11,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:26:11,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:26:11,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:26:11,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:26:11,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:26:11,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:26:11,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:26:11,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:26:11,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:26:11,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:26:11,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:26:11,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:26:11,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:26:11,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:26:11,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:26:11,543 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 [2020-09-24 22:26:11,569 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:26:11,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:26:11,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:26:11,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:26:11,571 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:26:11,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:26:11,575 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:26:11,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:26:11,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:26:11,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:26:11,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:26:11,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:26:11,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:26:11,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:26:11,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:26:11,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:26:11,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:26:11,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:26:11,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:26:11,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:26:11,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:26:11,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:26:11,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:26:11,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:26:11,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:26:11,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:26:11,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:26:11,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:26:11,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:26:11,580 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:26:12,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:26:12,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:26:12,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:26:12,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:26:12,084 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:26:12,085 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-24 22:26:12,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f043170c9/573517715c0d460f882548195b782c2d/FLAG275395906 [2020-09-24 22:26:12,764 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:26:12,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-24 22:26:12,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f043170c9/573517715c0d460f882548195b782c2d/FLAG275395906 [2020-09-24 22:26:13,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f043170c9/573517715c0d460f882548195b782c2d [2020-09-24 22:26:13,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:26:13,077 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:26:13,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:26:13,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:26:13,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:26:13,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:26:13" (1/1) ... [2020-09-24 22:26:13,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13, skipping insertion in model container [2020-09-24 22:26:13,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:26:13" (1/1) ... [2020-09-24 22:26:13,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:26:13,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:26:13,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:26:13,566 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:26:13,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:26:13,821 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:26:13,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13 WrapperNode [2020-09-24 22:26:13,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:26:13,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:26:13,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:26:13,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:26:13,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13" (1/1) ... [2020-09-24 22:26:13,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13" (1/1) ... [2020-09-24 22:26:13,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13" (1/1) ... [2020-09-24 22:26:13,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13" (1/1) ... [2020-09-24 22:26:13,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13" (1/1) ... [2020-09-24 22:26:13,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13" (1/1) ... [2020-09-24 22:26:13,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13" (1/1) ... [2020-09-24 22:26:13,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:26:13,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:26:13,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:26:13,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:26:13,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13" (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 [2020-09-24 22:26:14,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:26:14,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:26:14,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:26:14,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:26:14,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:26:14,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:26:14,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:26:14,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:26:14,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:26:14,068 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:26:14,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:26:14,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:26:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:26:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:26:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:26:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:26:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:26:14,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:26:14,070 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:26:14,070 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:26:14,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 22:26:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 22:26:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:26:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:26:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:26:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:26:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:26:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:26:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:26:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:26:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:26:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:26:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:26:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:26:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:26:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:26:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:26:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:26:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:26:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:26:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:26:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:26:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:26:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:26:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:26:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:26:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:26:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:26:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:26:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:26:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:26:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:26:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:26:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:26:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:26:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:26:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:26:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:26:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:26:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:26:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:26:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:26:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:26:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:26:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:26:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:26:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:26:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:26:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:26:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 22:26:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:26:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:26:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:26:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:26:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:26:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:26:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:26:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:26:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:26:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 22:26:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:26:14,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:26:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:26:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:26:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:26:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:26:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:26:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:26:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:26:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:26:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:26:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:26:15,237 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:26:15,237 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:26:15,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:26:15 BoogieIcfgContainer [2020-09-24 22:26:15,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:26:15,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:26:15,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:26:15,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:26:15,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:26:13" (1/3) ... [2020-09-24 22:26:15,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34274ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:26:15, skipping insertion in model container [2020-09-24 22:26:15,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:26:13" (2/3) ... [2020-09-24 22:26:15,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34274ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:26:15, skipping insertion in model container [2020-09-24 22:26:15,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:26:15" (3/3) ... [2020-09-24 22:26:15,255 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-09-24 22:26:15,267 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:26:15,280 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:26:15,304 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:26:15,343 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:26:15,343 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:26:15,344 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:26:15,344 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:26:15,344 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:26:15,344 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:26:15,344 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:26:15,344 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:26:15,378 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-24 22:26:15,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 22:26:15,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:15,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:26:15,398 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:15,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:15,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1842377824, now seen corresponding path program 1 times [2020-09-24 22:26:15,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:15,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745399060] [2020-09-24 22:26:15,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:16,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:16,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:17,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:18,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:19,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:20,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:20,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 22:26:20,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:26:20,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 22:26:20,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:20,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:20,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 22:26:20,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:26:20,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 22:26:21,400 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:21,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:21,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:21,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:21,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:21,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:21,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 22:26:21,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:21,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:21,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:21,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:21,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:21,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:21,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:21,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:21,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:21,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:21,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:21,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:21,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:21,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:21,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:21,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:21,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:21,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:21,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:21,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:21,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:21,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:21,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:21,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:21,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:21,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:21,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:21,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:21,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:21,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:26:21,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:21,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:21,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:21,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:21,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:21,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:21,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:21,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:21,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:21,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:21,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:21,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:21,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:21,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:21,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:21,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:21,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:21,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:21,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:21,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:21,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:21,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 22:26:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:21,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:21,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:21,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:21,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:21,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:21,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:21,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:26:21,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:21,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:21,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:21,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:26:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:21,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:21,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:21,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:21,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:21,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:26:21,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:21,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:26:21,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745399060] [2020-09-24 22:26:21,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:26:21,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:26:21,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096623672] [2020-09-24 22:26:21,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:26:21,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:21,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:26:21,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:26:21,867 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 9 states. [2020-09-24 22:26:22,587 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:26:23,957 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:24,273 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:26:24,575 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:24,906 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:26:25,274 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:25,961 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:26:26,256 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:26,621 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:27,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:26:27,469 INFO L93 Difference]: Finished difference Result 552 states and 682 transitions. [2020-09-24 22:26:27,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 22:26:27,472 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 22:26:27,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:26:27,494 INFO L225 Difference]: With dead ends: 552 [2020-09-24 22:26:27,494 INFO L226 Difference]: Without dead ends: 380 [2020-09-24 22:26:27,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 22:26:27,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-09-24 22:26:27,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 327. [2020-09-24 22:26:27,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-09-24 22:26:27,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 366 transitions. [2020-09-24 22:26:27,635 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 366 transitions. Word has length 148 [2020-09-24 22:26:27,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:26:27,636 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 366 transitions. [2020-09-24 22:26:27,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:26:27,636 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 366 transitions. [2020-09-24 22:26:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 22:26:27,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:27,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:26:27,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:26:27,642 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:27,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:27,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1530076393, now seen corresponding path program 1 times [2020-09-24 22:26:27,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:27,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061943134] [2020-09-24 22:26:27,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:27,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:28,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:29,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:32,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:32,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 22:26:32,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:26:32,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-09-24 22:26:32,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-24 22:26:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:26:32,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:33,103 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:33,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:33,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 22:26:33,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:33,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:33,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:33,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:33,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:33,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:33,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:33,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:26:33,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:33,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:33,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:33,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:33,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:33,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:26:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:26:33,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 22:26:33,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:26:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:26:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:26:33,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:26:33,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 22:26:33,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:33,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:26:33,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:26:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:26:33,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:26:33,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:33,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:26:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:33,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:33,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:26:33,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 22:26:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:33,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:33,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:33,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:33,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 22:26:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:33,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:33,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:33,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:33,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:33,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:33,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:33,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:33,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:26:33,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061943134] [2020-09-24 22:26:33,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:26:33,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:26:33,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759236206] [2020-09-24 22:26:33,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:26:33,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:33,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:26:33,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:26:33,619 INFO L87 Difference]: Start difference. First operand 327 states and 366 transitions. Second operand 10 states. [2020-09-24 22:26:35,607 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:35,997 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:26:36,242 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:26:36,530 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:36,876 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:26:37,188 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:37,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:26:37,867 INFO L93 Difference]: Finished difference Result 635 states and 771 transitions. [2020-09-24 22:26:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:26:37,869 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 191 [2020-09-24 22:26:37,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:26:37,882 INFO L225 Difference]: With dead ends: 635 [2020-09-24 22:26:37,882 INFO L226 Difference]: Without dead ends: 423 [2020-09-24 22:26:37,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:26:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-09-24 22:26:37,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 341. [2020-09-24 22:26:37,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-24 22:26:37,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 383 transitions. [2020-09-24 22:26:37,990 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 383 transitions. Word has length 191 [2020-09-24 22:26:37,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:26:37,991 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 383 transitions. [2020-09-24 22:26:37,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:26:37,991 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 383 transitions. [2020-09-24 22:26:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-24 22:26:38,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:38,004 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:26:38,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:26:38,004 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:38,005 INFO L82 PathProgramCache]: Analyzing trace with hash 2113874789, now seen corresponding path program 1 times [2020-09-24 22:26:38,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:38,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442077856] [2020-09-24 22:26:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:38,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:38,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-24 22:26:43,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:26:43,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 22:26:43,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 22:26:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:26:43,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,335 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:43,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:43,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-24 22:26:43,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:43,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:26:43,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:43,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:43,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:43,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:43,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:43,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:26:43,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:43,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:26:43,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:26:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 22:26:43,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:43,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:26:43,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:43,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:43,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:43,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:26:43,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:26:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:26:43,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 22:26:43,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:43,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:26:43,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:26:43,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:26:43,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 22:26:43,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:26:43,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:26:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:26:43,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:26:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:26:43,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:26:43,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:26:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:43,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:26:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:43,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:43,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:26:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 22:26:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:43,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:43,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 22:26:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:43,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:43,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:43,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:43,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:43,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:26:43,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:43,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:43,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:26:43,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:43,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:43,922 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:26:43,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442077856] [2020-09-24 22:26:43,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:26:43,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 22:26:43,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321049941] [2020-09-24 22:26:43,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:26:43,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:43,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:26:43,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:26:43,926 INFO L87 Difference]: Start difference. First operand 341 states and 383 transitions. Second operand 10 states. [2020-09-24 22:26:45,206 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:26:45,547 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:26:45,876 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:46,253 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:26:46,585 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:26:47,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:26:47,550 INFO L93 Difference]: Finished difference Result 670 states and 831 transitions. [2020-09-24 22:26:47,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:26:47,550 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2020-09-24 22:26:47,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:26:47,556 INFO L225 Difference]: With dead ends: 670 [2020-09-24 22:26:47,556 INFO L226 Difference]: Without dead ends: 444 [2020-09-24 22:26:47,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:26:47,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-09-24 22:26:47,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 347. [2020-09-24 22:26:47,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-24 22:26:47,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 389 transitions. [2020-09-24 22:26:47,640 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 389 transitions. Word has length 207 [2020-09-24 22:26:47,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:26:47,641 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 389 transitions. [2020-09-24 22:26:47,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:26:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 389 transitions. [2020-09-24 22:26:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 22:26:47,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:47,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:26:47,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:26:47,645 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:47,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:47,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1740840122, now seen corresponding path program 1 times [2020-09-24 22:26:47,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:47,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102894607] [2020-09-24 22:26:47,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:47,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:48,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:49,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:52,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:52,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 22:26:52,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:26:52,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 22:26:52,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:52,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:26:52,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 22:26:52,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 22:26:52,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,122 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:26:53,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:26:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:26:53,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 22:26:53,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:26:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:53,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:26:53,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:53,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:53,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:26:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:53,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:26:53,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:53,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:26:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:53,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:53,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:53,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:53,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:26:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:26:53,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:26:53,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:53,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:53,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:26:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:53,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:53,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:26:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:26:53,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:26:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:26:53,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 22:26:53,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:26:53,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 22:26:53,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:26:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:26:53,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:26:53,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:53,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:53,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:26:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:26:53,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:26:53,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:53,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:26:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:26:53,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:26:53,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:26:53,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:26:53,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 22:26:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:53,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:53,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:26:53,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:53,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 22:26:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:53,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:53,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:26:53,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:26:53,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:26:53,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:26:53,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:26:53,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:26:53,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:26:53,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:26:53,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:26:53,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:26:53,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102894607] [2020-09-24 22:26:53,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:26:53,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:26:53,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111116434] [2020-09-24 22:26:53,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:26:53,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:26:53,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:26:53,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:26:53,470 INFO L87 Difference]: Start difference. First operand 347 states and 389 transitions. Second operand 6 states. [2020-09-24 22:26:53,977 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:26:56,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:26:56,393 INFO L93 Difference]: Finished difference Result 709 states and 914 transitions. [2020-09-24 22:26:56,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:26:56,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2020-09-24 22:26:56,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:26:56,403 INFO L225 Difference]: With dead ends: 709 [2020-09-24 22:26:56,404 INFO L226 Difference]: Without dead ends: 706 [2020-09-24 22:26:56,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:26:56,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-24 22:26:56,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 544. [2020-09-24 22:26:56,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-09-24 22:26:56,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 640 transitions. [2020-09-24 22:26:56,490 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 640 transitions. Word has length 191 [2020-09-24 22:26:56,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:26:56,491 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 640 transitions. [2020-09-24 22:26:56,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:26:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 640 transitions. [2020-09-24 22:26:56,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 22:26:56,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:26:56,497 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:26:56,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:26:56,498 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:26:56,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:26:56,498 INFO L82 PathProgramCache]: Analyzing trace with hash 76103614, now seen corresponding path program 1 times [2020-09-24 22:26:56,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:26:56,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334204561] [2020-09-24 22:26:56,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:26:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:26:56,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:56,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:57,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:57,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:57,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:26:58,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking...