/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_spec5_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:35:21,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:35:21,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:35:21,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:35:21,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:35:21,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:35:21,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:35:21,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:35:21,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:35:21,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:35:21,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:35:21,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:35:21,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:35:21,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:35:21,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:35:21,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:35:21,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:35:21,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:35:21,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:35:21,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:35:21,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:35:21,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:35:21,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:35:21,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:35:21,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:35:21,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:35:21,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:35:21,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:35:21,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:35:21,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:35:21,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:35:21,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:35:21,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:35:21,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:35:21,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:35:21,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:35:21,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:35:21,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:35:21,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:35:21,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:35:21,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:35:21,600 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 22:35:21,635 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:35:21,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:35:21,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:35:21,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:35:21,637 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:35:21,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:35:21,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:35:21,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:35:21,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:35:21,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:35:21,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:35:21,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:35:21,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:35:21,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:35:21,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:35:21,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:35:21,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:35:21,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:35:21,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:35:21,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:35:21,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:35:21,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:35:21,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:35:21,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:35:21,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:35:21,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:35:21,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:35:21,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:35:21,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:35:21,642 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 22:35:22,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:35:22,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:35:22,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:35:22,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:35:22,121 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:35:22,122 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product56.cil.c [2020-09-24 22:35:22,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5649763a0/e8d16d66e9a94be7bfadba397c14b56e/FLAG3c2318ff5 [2020-09-24 22:35:22,790 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:35:22,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product56.cil.c [2020-09-24 22:35:22,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5649763a0/e8d16d66e9a94be7bfadba397c14b56e/FLAG3c2318ff5 [2020-09-24 22:35:23,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5649763a0/e8d16d66e9a94be7bfadba397c14b56e [2020-09-24 22:35:23,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:35:23,105 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:35:23,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:35:23,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:35:23,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:35:23,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:35:23" (1/1) ... [2020-09-24 22:35:23,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23, skipping insertion in model container [2020-09-24 22:35:23,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:35:23" (1/1) ... [2020-09-24 22:35:23,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:35:23,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:35:23,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:35:23,635 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:35:23,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:35:23,911 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:35:23,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23 WrapperNode [2020-09-24 22:35:23,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:35:23,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:35:23,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:35:23,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:35:23,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23" (1/1) ... [2020-09-24 22:35:23,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23" (1/1) ... [2020-09-24 22:35:23,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23" (1/1) ... [2020-09-24 22:35:23,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23" (1/1) ... [2020-09-24 22:35:23,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23" (1/1) ... [2020-09-24 22:35:24,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23" (1/1) ... [2020-09-24 22:35:24,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23" (1/1) ... [2020-09-24 22:35:24,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:35:24,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:35:24,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:35:24,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:35:24,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23" (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 22:35:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:35:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:35:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:35:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:35:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:35:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:35:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:35:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:35:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:35:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:35:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:35:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:35:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:35:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:35:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:35:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:35:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:35:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:35:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:35:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:35:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:35:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:35:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:35:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:35:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:35:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:35:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:35:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:35:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:35:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:35:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:35:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 22:35:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 22:35:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 22:35:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:35:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:35:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:35:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:35:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:35:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:35:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:35:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:35:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:35:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:35:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:35:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:35:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:35:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:35:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:35:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:35:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:35:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:35:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:35:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:35:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:35:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:35:24,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:35:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:35:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:35:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:35:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:35:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:35:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:35:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:35:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 22:35:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 22:35:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:35:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:35:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:35:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:35:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:35:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 22:35:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:35:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:35:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:35:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:35:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:35:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:35:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:35:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:35:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 22:35:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:35:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:35:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:35:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:35:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:35:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:35:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:35:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:35:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:35:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:35:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:35:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:35:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:35:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:35:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:35:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:35:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:35:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:35:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:35:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:35:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:35:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:35:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:35:25,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:35:25,460 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:35:25,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:35:25 BoogieIcfgContainer [2020-09-24 22:35:25,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:35:25,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:35:25,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:35:25,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:35:25,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:35:23" (1/3) ... [2020-09-24 22:35:25,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434a53a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:35:25, skipping insertion in model container [2020-09-24 22:35:25,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:35:23" (2/3) ... [2020-09-24 22:35:25,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434a53a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:35:25, skipping insertion in model container [2020-09-24 22:35:25,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:35:25" (3/3) ... [2020-09-24 22:35:25,480 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product56.cil.c [2020-09-24 22:35:25,493 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:35:25,507 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:35:25,530 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:35:25,565 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:35:25,565 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:35:25,565 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:35:25,565 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:35:25,566 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:35:25,566 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:35:25,566 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:35:25,566 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:35:25,598 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-09-24 22:35:25,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 22:35:25,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:35:25,621 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:35:25,622 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:35:25,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:35:25,631 INFO L82 PathProgramCache]: Analyzing trace with hash -36898584, now seen corresponding path program 1 times [2020-09-24 22:35:25,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:35:25,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470172007] [2020-09-24 22:35:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:35:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:26,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:26,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:27,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:28,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:30,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:31,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:31,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 22:35:31,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:35:31,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 22:35:31,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:35:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 22:35:31,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:35:31,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:35:31,780 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:35:31,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:35:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:31,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:31,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:31,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:35:31,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:31,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-24 22:35:31,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:31,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:31,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:31,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:35:32,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:35:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:32,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:32,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:32,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:32,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:32,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:32,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:32,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:32,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:32,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:32,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:32,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:35:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:32,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:32,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:32,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:32,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:32,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:32,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:32,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:32,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:35:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:32,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:32,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:32,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:32,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:32,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:35:32,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:32,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:32,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:35:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:32,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:32,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:32,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:32,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:32,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:32,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:32,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:32,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:32,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:35:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:32,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:32,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:32,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:35:32,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:32,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:32,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:32,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:32,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:32,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:32,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:35:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:32,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:32,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:32,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 22:35:32,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:32,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:35:32,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:32,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:32,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:35:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:32,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:32,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:32,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:32,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:32,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:35:32,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:32,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:32,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:32,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 22:35:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:32,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:32,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:32,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:32,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:35:32,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:35:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:35:32,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 22:35:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:32,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:32,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:32,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:32,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:32,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:35:32,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:35:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:35:32,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 22:35:32,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470172007] [2020-09-24 22:35:32,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:35:32,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:35:32,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506390577] [2020-09-24 22:35:32,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:35:32,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:35:32,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:35:32,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:35:32,331 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 9 states. [2020-09-24 22:35:33,058 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:35:33,920 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:35:34,230 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:35:35,692 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:35:36,012 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:35:36,442 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:35:37,011 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:35:37,401 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:35:37,762 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:35:39,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:35:39,054 INFO L93 Difference]: Finished difference Result 703 states and 854 transitions. [2020-09-24 22:35:39,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:35:39,056 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 22:35:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:35:39,079 INFO L225 Difference]: With dead ends: 703 [2020-09-24 22:35:39,080 INFO L226 Difference]: Without dead ends: 467 [2020-09-24 22:35:39,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:35:39,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-09-24 22:35:39,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 416. [2020-09-24 22:35:39,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-09-24 22:35:39,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 468 transitions. [2020-09-24 22:35:39,275 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 468 transitions. Word has length 160 [2020-09-24 22:35:39,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:35:39,276 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 468 transitions. [2020-09-24 22:35:39,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:35:39,277 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 468 transitions. [2020-09-24 22:35:39,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 22:35:39,283 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:35:39,283 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:35:39,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:35:39,284 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:35:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:35:39,284 INFO L82 PathProgramCache]: Analyzing trace with hash 311325871, now seen corresponding path program 1 times [2020-09-24 22:35:39,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:35:39,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396939750] [2020-09-24 22:35:39,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:35:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:39,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:39,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:41,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:41,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 22:35:41,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:35:41,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2237 [2020-09-24 22:35:41,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:35:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 22:35:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:35:41,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:41,867 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:35:41,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:35:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:41,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:41,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:41,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:35:41,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:41,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 22:35:41,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:41,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:41,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:41,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:35:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:42,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:35:42,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:35:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:42,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:35:42,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:35:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:42,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:35:42,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:35:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:42,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:35:42,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:42,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:35:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:35:42,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:42,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:35:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 22:35:42,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:42,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:42,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:35:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:42,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:42,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:42,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:35:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:35:42,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 22:35:42,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:35:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 22:35:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:35:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:35:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:35:42,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 22:35:42,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:35:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:35:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:35:42,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:35:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:35:42,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 22:35:42,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:35:42,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:35:42,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:35:42,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:35:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:35:42,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 22:35:42,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:35:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:42,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:35:42,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:35:42,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:35:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:35:42,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:35:42,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:42,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:35:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:35:42,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:35:42,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:35:42,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:42,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 22:35:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:42,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:42,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:35:42,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:35:42,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 22:35:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:42,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:42,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:42,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:42,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:42,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:42,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:35:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:42,576 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 22:35:42,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396939750] [2020-09-24 22:35:42,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:35:42,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:35:42,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715932941] [2020-09-24 22:35:42,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:35:42,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:35:42,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:35:42,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:35:42,584 INFO L87 Difference]: Start difference. First operand 416 states and 468 transitions. Second operand 10 states. [2020-09-24 22:35:44,333 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:35:44,691 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:35:45,072 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:35:45,478 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:35:45,872 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:35:46,230 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:35:47,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:35:47,746 INFO L93 Difference]: Finished difference Result 816 states and 982 transitions. [2020-09-24 22:35:47,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:35:47,748 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2020-09-24 22:35:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:35:47,763 INFO L225 Difference]: With dead ends: 816 [2020-09-24 22:35:47,764 INFO L226 Difference]: Without dead ends: 515 [2020-09-24 22:35:47,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:35:47,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-09-24 22:35:47,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 433. [2020-09-24 22:35:47,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-09-24 22:35:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 491 transitions. [2020-09-24 22:35:47,836 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 491 transitions. Word has length 204 [2020-09-24 22:35:47,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:35:47,837 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 491 transitions. [2020-09-24 22:35:47,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:35:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 491 transitions. [2020-09-24 22:35:47,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 22:35:47,841 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:35:47,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:35:47,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:35:47,842 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:35:47,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:35:47,843 INFO L82 PathProgramCache]: Analyzing trace with hash 2026418, now seen corresponding path program 1 times [2020-09-24 22:35:47,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:35:47,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111545399] [2020-09-24 22:35:47,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:35:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:47,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:48,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:48,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 22:35:48,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:48,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-09-24 22:35:48,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:48,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:35:48,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-09-24 22:35:48,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:35:48,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,086 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:35:49,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:35:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:35:49,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 22:35:49,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:35:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:49,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:49,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:35:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:49,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:49,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:35:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:49,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:35:49,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:35:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:49,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:35:49,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:35:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:35:49,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:49,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 22:35:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:35:49,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:35:49,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:49,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 22:35:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 22:35:49,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:49,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:35:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:49,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:49,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:49,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:35:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:35:49,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 22:35:49,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:35:49,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 22:35:49,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:35:49,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:35:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:35:49,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 22:35:49,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:35:49,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:35:49,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:35:49,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:35:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:35:49,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 22:35:49,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:35:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:35:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:35:49,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:35:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:35:49,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 22:35:49,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:35:49,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:35:49,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:35:49,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:35:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:35:49,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:35:49,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:35:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:35:49,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:35:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:35:49,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:35:49,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:35:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 22:35:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:49,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:35:49,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:35:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 22:35:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:49,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:49,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:49,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:49,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:49,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:49,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:35:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:49,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:49,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 22:35:49,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111545399] [2020-09-24 22:35:49,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:35:49,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:35:49,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226098596] [2020-09-24 22:35:49,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:35:49,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:35:49,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:35:49,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:35:49,720 INFO L87 Difference]: Start difference. First operand 433 states and 491 transitions. Second operand 10 states. [2020-09-24 22:35:51,427 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:35:51,771 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:35:52,143 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:35:52,523 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 22:35:52,863 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:35:54,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:35:54,472 INFO L93 Difference]: Finished difference Result 917 states and 1156 transitions. [2020-09-24 22:35:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 22:35:54,474 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2020-09-24 22:35:54,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:35:54,480 INFO L225 Difference]: With dead ends: 917 [2020-09-24 22:35:54,480 INFO L226 Difference]: Without dead ends: 599 [2020-09-24 22:35:54,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:35:54,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-09-24 22:35:54,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 439. [2020-09-24 22:35:54,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-09-24 22:35:54,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 497 transitions. [2020-09-24 22:35:54,545 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 497 transitions. Word has length 217 [2020-09-24 22:35:54,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:35:54,545 INFO L479 AbstractCegarLoop]: Abstraction has 439 states and 497 transitions. [2020-09-24 22:35:54,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:35:54,546 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 497 transitions. [2020-09-24 22:35:54,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 22:35:54,549 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:35:54,549 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:35:54,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:35:54,550 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:35:54,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:35:54,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1906064244, now seen corresponding path program 1 times [2020-09-24 22:35:54,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:35:54,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222634191] [2020-09-24 22:35:54,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:35:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:54,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:54,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:58,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:58,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 22:35:58,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:35:58,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3879 [2020-09-24 22:35:58,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:58,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:35:58,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 22:35:58,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:35:58,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:58,843 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:35:58,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:35:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:58,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:58,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:58,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:35:58,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:58,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 22:35:58,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:35:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:59,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:59,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:35:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:59,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:59,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:35:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:59,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:35:59,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:35:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:35:59,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:59,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:35:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:35:59,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:59,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:35:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 22:35:59,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:35:59,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:35:59,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:35:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:59,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:59,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:35:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:35:59,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:35:59,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-24 22:35:59,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:35:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:35:59,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:35:59,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:35:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:35:59,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:35:59,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:35:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:35:59,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:35:59,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:35:59,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:35:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:35:59,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:59,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:35:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:35:59,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:35:59,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:35:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 22:35:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:59,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:59,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:35:59,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 22:35:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:35:59,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:35:59,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:35:59,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:35:59,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:35:59,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:35:59,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:35:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:35:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:35:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:35:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:35:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 22:35:59,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222634191] [2020-09-24 22:35:59,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:35:59,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:35:59,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917149297] [2020-09-24 22:35:59,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:35:59,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:35:59,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:35:59,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:35:59,302 INFO L87 Difference]: Start difference. First operand 439 states and 497 transitions. Second operand 6 states. [2020-09-24 22:36:00,076 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:36:01,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:36:01,813 INFO L93 Difference]: Finished difference Result 732 states and 845 transitions. [2020-09-24 22:36:01,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:36:01,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2020-09-24 22:36:01,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:36:01,818 INFO L225 Difference]: With dead ends: 732 [2020-09-24 22:36:01,818 INFO L226 Difference]: Without dead ends: 487 [2020-09-24 22:36:01,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:36:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2020-09-24 22:36:01,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 419. [2020-09-24 22:36:01,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-24 22:36:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 463 transitions. [2020-09-24 22:36:01,871 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 463 transitions. Word has length 204 [2020-09-24 22:36:01,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:36:01,871 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 463 transitions. [2020-09-24 22:36:01,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:36:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 463 transitions. [2020-09-24 22:36:01,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 22:36:01,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:36:01,875 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:36:01,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:36:01,875 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:36:01,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:36:01,876 INFO L82 PathProgramCache]: Analyzing trace with hash 2141932335, now seen corresponding path program 1 times [2020-09-24 22:36:01,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:36:01,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095227328] [2020-09-24 22:36:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:36:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:01,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:03,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:03,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 22:36:03,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:03,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1458 [2020-09-24 22:36:03,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 22:36:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 22:36:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 22:36:03,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:36:03,717 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:36:03,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:36:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:03,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:03,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:03,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 22:36:03,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:03,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-24 22:36:03,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:03,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:03,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:03,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 22:36:03,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:36:04,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:36:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:36:04,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:36:04,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:36:04,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:36:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:36:04,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:36:04,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:36:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 22:36:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:36:04,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:36:04,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:36:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:36:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:36:04,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:36:04,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:36:04,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 22:36:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:36:04,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:36:04,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:36:04,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:36:04,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 22:36:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:36:04,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:36:04,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:36:04,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 22:36:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 22:36:04,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:36:04,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:36:04,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:36:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:36:04,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:36:04,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:36:04,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:36:04,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:36:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:36:04,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 22:36:04,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 22:36:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:36:04,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:36:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:36:04,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 22:36:04,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 22:36:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:36:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:36:04,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:36:04,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:36:04,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:36:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:36:04,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 22:36:04,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:36:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:36:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:36:04,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:36:04,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:36:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:36:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:36:04,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:36:04,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:36:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:36:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:36:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 22:36:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:36:04,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:36:04,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:36:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:36:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:36:04,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 22:36:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:04,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:04,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:36:04,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:36:04,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:36:04,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:36:04,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:36:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:36:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:36:04,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:36:04,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:36:04,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 22:36:04,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095227328] [2020-09-24 22:36:04,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:36:04,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:36:04,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76817484] [2020-09-24 22:36:04,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:36:04,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:36:04,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:36:04,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:36:04,504 INFO L87 Difference]: Start difference. First operand 419 states and 463 transitions. Second operand 8 states. [2020-09-24 22:36:05,077 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:36:05,800 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:36:09,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:36:09,753 INFO L93 Difference]: Finished difference Result 1244 states and 1540 transitions. [2020-09-24 22:36:09,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 22:36:09,754 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 217 [2020-09-24 22:36:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:36:09,761 INFO L225 Difference]: With dead ends: 1244 [2020-09-24 22:36:09,761 INFO L226 Difference]: Without dead ends: 940 [2020-09-24 22:36:09,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-09-24 22:36:09,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-09-24 22:36:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 723. [2020-09-24 22:36:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-09-24 22:36:09,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 817 transitions. [2020-09-24 22:36:09,899 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 817 transitions. Word has length 217 [2020-09-24 22:36:09,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:36:09,900 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 817 transitions. [2020-09-24 22:36:09,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:36:09,900 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 817 transitions. [2020-09-24 22:36:09,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 22:36:09,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:36:09,904 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:36:09,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:36:09,905 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:36:09,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:36:09,905 INFO L82 PathProgramCache]: Analyzing trace with hash -388346294, now seen corresponding path program 1 times [2020-09-24 22:36:09,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:36:09,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439023354] [2020-09-24 22:36:09,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:36:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:36:10,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:36:10,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking...