/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_spec1_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:24:16,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:24:16,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:24:16,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:24:16,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:24:16,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:24:16,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:24:16,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:24:16,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:24:16,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:24:16,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:24:16,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:24:16,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:24:16,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:24:16,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:24:16,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:24:16,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:24:16,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:24:16,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:24:16,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:24:16,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:24:16,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:24:16,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:24:16,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:24:16,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:24:16,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:24:16,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:24:16,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:24:16,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:24:16,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:24:16,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:24:16,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:24:16,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:24:16,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:24:16,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:24:16,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:24:16,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:24:16,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:24:16,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:24:16,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:24:16,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:24:16,678 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 22:24:16,704 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:24:16,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:24:16,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:24:16,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:24:16,706 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:24:16,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:24:16,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:24:16,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:24:16,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:24:16,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:24:16,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:24:16,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:24:16,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:24:16,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:24:16,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:24:16,708 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:24:16,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:24:16,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:24:16,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:24:16,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:24:16,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:24:16,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:24:16,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:24:16,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:24:16,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:24:16,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:24:16,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:24:16,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:24:16,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:24:16,711 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 22:24:17,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:24:17,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:24:17,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:24:17,179 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:24:17,180 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:24:17,181 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-24 22:24:17,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a564d62d/eceb4fbbb6664e71ba5bbe41d81a868a/FLAGa4ed456a9 [2020-09-24 22:24:17,866 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:24:17,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-24 22:24:17,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a564d62d/eceb4fbbb6664e71ba5bbe41d81a868a/FLAGa4ed456a9 [2020-09-24 22:24:18,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a564d62d/eceb4fbbb6664e71ba5bbe41d81a868a [2020-09-24 22:24:18,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:24:18,186 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:24:18,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:24:18,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:24:18,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:24:18,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:18,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d98017f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18, skipping insertion in model container [2020-09-24 22:24:18,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:18,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:24:18,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:24:18,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:24:18,818 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:24:18,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:24:18,993 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:24:18,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18 WrapperNode [2020-09-24 22:24:18,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:24:18,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:24:18,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:24:18,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:24:19,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:19,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:19,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:19,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:19,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:19,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:19,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (1/1) ... [2020-09-24 22:24:19,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:24:19,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:24:19,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:24:19,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:24:19,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (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 22:24:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:24:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:24:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:24:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:24:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:24:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:24:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:24:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:24:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:24:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:24:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 22:24:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 22:24:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:24:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:24:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:24:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:24:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:24:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:24:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:24:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:24:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:24:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:24:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:24:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:24:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 22:24:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:24:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:24:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:24:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:24:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:24:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:24:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:24:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 22:24:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 22:24:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:24:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:24:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:24:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:24:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:24:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:24:19,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:24:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:24:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:24:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:24:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:24:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:24:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:24:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 22:24:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:24:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:24:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:24:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:24:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:24:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 22:24:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 22:24:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:24:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:24:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:24:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:24:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:24:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:24:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:24:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:24:19,182 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:24:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:24:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:24:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:24:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:24:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:24:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:24:19,183 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:24:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:24:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 22:24:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 22:24:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 22:24:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 22:24:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:24:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:24:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:24:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:24:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:24:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:24:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:24:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:24:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:24:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:24:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:24:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:24:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:24:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:24:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:24:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:24:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:24:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:24:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:24:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:24:20,330 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:24:20,331 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:24:20,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:24:20 BoogieIcfgContainer [2020-09-24 22:24:20,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:24:20,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:24:20,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:24:20,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:24:20,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:24:18" (1/3) ... [2020-09-24 22:24:20,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e8f42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:24:20, skipping insertion in model container [2020-09-24 22:24:20,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:24:18" (2/3) ... [2020-09-24 22:24:20,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e8f42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:24:20, skipping insertion in model container [2020-09-24 22:24:20,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:24:20" (3/3) ... [2020-09-24 22:24:20,348 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-09-24 22:24:20,361 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:24:20,374 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:24:20,398 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:24:20,438 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:24:20,438 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:24:20,438 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:24:20,438 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:24:20,439 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:24:20,439 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:24:20,439 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:24:20,439 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:24:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-24 22:24:20,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 22:24:20,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:20,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:20,508 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:20,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:20,516 INFO L82 PathProgramCache]: Analyzing trace with hash -2015468822, now seen corresponding path program 1 times [2020-09-24 22:24:20,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:20,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384841292] [2020-09-24 22:24:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:21,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:21,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:22,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:23,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:25,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:25,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:24:25,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:24:25,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 22:24:25,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:25,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:25,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-24 22:24:25,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 22:24:25,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-09-24 22:24:26,599 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:26,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:26,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 22:24:26,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:26,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:26,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:26,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:26,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:26,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:26,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:26,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:26,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:26,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:26,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:26,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:26,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:26,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:24:26,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:26,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:26,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:26,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:26,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:26,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:26,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 22:24:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:26,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:24:26,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:26,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:26,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:24:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:26,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:26,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:26,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:26,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:26,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 22:24:26,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:26,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:24:27,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384841292] [2020-09-24 22:24:27,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:27,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:24:27,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212649869] [2020-09-24 22:24:27,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:24:27,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:27,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:24:27,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:24:27,130 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 8 states. [2020-09-24 22:24:28,218 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:29,581 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:29,974 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:30,264 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:30,610 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:24:30,923 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:31,667 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:24:32,006 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:32,388 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:33,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:33,703 INFO L93 Difference]: Finished difference Result 613 states and 760 transitions. [2020-09-24 22:24:33,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:24:33,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 22:24:33,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:33,747 INFO L225 Difference]: With dead ends: 613 [2020-09-24 22:24:33,747 INFO L226 Difference]: Without dead ends: 408 [2020-09-24 22:24:33,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 22:24:33,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-24 22:24:33,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 365. [2020-09-24 22:24:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-24 22:24:33,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 417 transitions. [2020-09-24 22:24:33,931 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 417 transitions. Word has length 142 [2020-09-24 22:24:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:33,932 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 417 transitions. [2020-09-24 22:24:33,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:24:33,933 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 417 transitions. [2020-09-24 22:24:33,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 22:24:33,938 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:33,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:33,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:24:33,939 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:33,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:33,940 INFO L82 PathProgramCache]: Analyzing trace with hash 394216990, now seen corresponding path program 1 times [2020-09-24 22:24:33,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:33,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28314564] [2020-09-24 22:24:33,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:34,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:34,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:35,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:24:39,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:24:39,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 22:24:39,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 22:24:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:39,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,325 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:39,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:39,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 22:24:39,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:39,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:39,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:39,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:39,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:39,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:39,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:24:39,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:39,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:39,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:39,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 22:24:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:24:39,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 22:24:39,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 22:24:39,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:39,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:39,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:24:39,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:24:39,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 22:24:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:24:39,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:39,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 22:24:39,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:39,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:39,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:24:39,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:39,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:39,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:39,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:39,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:39,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:39,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:39,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:24:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:39,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:39,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 22:24:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:39,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:39,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:39,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:39,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:39,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 22:24:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:39,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:39,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:39,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:39,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:39,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:39,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:39,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:39,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:39,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:24:39,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28314564] [2020-09-24 22:24:39,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:39,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:24:39,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418488410] [2020-09-24 22:24:39,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:24:39,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:39,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:24:39,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:24:39,871 INFO L87 Difference]: Start difference. First operand 365 states and 417 transitions. Second operand 9 states. [2020-09-24 22:24:41,358 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:41,669 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:41,959 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:42,300 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:42,657 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 22:24:42,949 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:24:44,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:44,031 INFO L93 Difference]: Finished difference Result 708 states and 874 transitions. [2020-09-24 22:24:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:24:44,032 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-24 22:24:44,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:44,038 INFO L225 Difference]: With dead ends: 708 [2020-09-24 22:24:44,038 INFO L226 Difference]: Without dead ends: 453 [2020-09-24 22:24:44,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:24:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-09-24 22:24:44,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 373. [2020-09-24 22:24:44,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-09-24 22:24:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2020-09-24 22:24:44,101 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 181 [2020-09-24 22:24:44,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:44,102 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2020-09-24 22:24:44,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:24:44,103 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2020-09-24 22:24:44,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 22:24:44,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:44,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:44,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:24:44,107 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:44,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:44,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1097411606, now seen corresponding path program 1 times [2020-09-24 22:24:44,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:44,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741578377] [2020-09-24 22:24:44,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:44,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:44,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 22:24:49,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:24:49,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4967 [2020-09-24 22:24:49,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 22:24:49,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:49,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:49,518 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:49,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:49,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 22:24:49,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:49,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:49,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:49,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:49,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:49,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:49,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:49,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:49,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:49,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:49,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:49,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:49,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:49,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:49,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:49,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:49,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:49,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:49,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:49,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:49,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:24:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:49,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:49,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:49,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:49,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:49,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:24:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:24:49,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 22:24:49,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 22:24:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:49,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 22:24:49,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:24:49,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:49,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:49,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 22:24:49,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:24:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:24:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:24:49,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:49,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:49,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:49,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:49,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:49,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:49,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:24:49,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:49,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:24:49,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:49,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:49,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:50,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:50,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:50,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:50,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:24:50,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 22:24:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:50,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:50,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 22:24:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:50,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:50,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:50,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:50,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:50,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:50,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:50,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 22:24:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:50,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:50,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:50,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:50,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:50,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:50,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:50,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:50,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:50,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:50,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:24:50,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741578377] [2020-09-24 22:24:50,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:50,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:24:50,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991088463] [2020-09-24 22:24:50,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:24:50,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:50,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:24:50,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:24:50,063 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 9 states. [2020-09-24 22:24:51,308 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:51,638 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:52,002 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:52,355 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 22:24:52,662 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:24:53,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:24:53,935 INFO L93 Difference]: Finished difference Result 796 states and 1029 transitions. [2020-09-24 22:24:53,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:24:53,936 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2020-09-24 22:24:53,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:24:53,941 INFO L225 Difference]: With dead ends: 796 [2020-09-24 22:24:53,941 INFO L226 Difference]: Without dead ends: 533 [2020-09-24 22:24:53,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:24:53,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-24 22:24:53,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 379. [2020-09-24 22:24:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-09-24 22:24:53,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 431 transitions. [2020-09-24 22:24:53,999 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 431 transitions. Word has length 194 [2020-09-24 22:24:53,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:24:53,999 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 431 transitions. [2020-09-24 22:24:53,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:24:54,000 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 431 transitions. [2020-09-24 22:24:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 22:24:54,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:24:54,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:24:54,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:24:54,004 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:24:54,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:24:54,004 INFO L82 PathProgramCache]: Analyzing trace with hash 2075020129, now seen corresponding path program 1 times [2020-09-24 22:24:54,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:24:54,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157383152] [2020-09-24 22:24:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:24:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:54,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:56,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 22:24:59,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:24:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-24 22:24:59,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:24:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:24:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:24:59,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:24:59,385 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:24:59,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:24:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:24:59,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 22:24:59,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:24:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:59,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:59,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:24:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:59,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:59,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:24:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:59,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:24:59,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:24:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:24:59,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:24:59,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 22:24:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 22:24:59,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:24:59,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 22:24:59,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 22:24:59,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:24:59,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:59,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:24:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:24:59,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:24:59,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:59,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:24:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:24:59,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:59,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:59,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 22:24:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:24:59,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:24:59,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:24:59,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 22:24:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:59,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:24:59,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:59,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 22:24:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:24:59,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:24:59,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:24:59,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:24:59,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:24:59,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:24:59,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:24:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:24:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:24:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:24:59,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:24:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:24:59,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157383152] [2020-09-24 22:24:59,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:24:59,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:24:59,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666692586] [2020-09-24 22:24:59,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:24:59,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:24:59,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:24:59,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:24:59,842 INFO L87 Difference]: Start difference. First operand 379 states and 431 transitions. Second operand 5 states. [2020-09-24 22:25:00,710 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:25:01,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:25:01,943 INFO L93 Difference]: Finished difference Result 614 states and 710 transitions. [2020-09-24 22:25:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:25:01,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2020-09-24 22:25:01,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:25:01,947 INFO L225 Difference]: With dead ends: 614 [2020-09-24 22:25:01,947 INFO L226 Difference]: Without dead ends: 413 [2020-09-24 22:25:01,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:25:01,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-09-24 22:25:01,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 359. [2020-09-24 22:25:01,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-24 22:25:01,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 397 transitions. [2020-09-24 22:25:01,985 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 397 transitions. Word has length 181 [2020-09-24 22:25:01,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:25:01,986 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 397 transitions. [2020-09-24 22:25:01,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:25:01,986 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 397 transitions. [2020-09-24 22:25:01,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 22:25:01,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:25:01,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:25:01,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:25:01,990 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:25:01,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:25:01,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1557261709, now seen corresponding path program 1 times [2020-09-24 22:25:01,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:25:01,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7578105] [2020-09-24 22:25:01,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:25:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:25:02,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:25:02,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking...