/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_spec4_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:10:16,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:10:16,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:10:16,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:10:16,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:10:16,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:10:16,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:10:16,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:10:16,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:10:16,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:10:16,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:10:16,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:10:16,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:10:16,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:10:16,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:10:16,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:10:16,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:10:16,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:10:16,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:10:16,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:10:16,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:10:16,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:10:16,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:10:16,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:10:16,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:10:16,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:10:16,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:10:16,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:10:16,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:10:16,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:10:16,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:10:16,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:10:16,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:10:16,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:10:16,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:10:16,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:10:16,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:10:16,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:10:16,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:10:16,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:10:16,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:10:16,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:10:16,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:10:16,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:10:16,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:10:16,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:10:16,775 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:10:16,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:10:16,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:10:16,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:10:16,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:10:16,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:10:16,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:10:16,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:10:16,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:10:16,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:10:16,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:10:16,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:10:16,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:10:16,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:10:16,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:10:16,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:10:16,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:10:16,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:10:16,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:10:16,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:10:16,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:10:16,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:10:16,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:10:16,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:10:16,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:10:16,781 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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:10:17,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:10:17,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:10:17,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:10:17,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:10:17,257 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:10:17,258 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2020-09-25 04:10:17,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5cfc2c9a/d55c5af2825c4766a26de0a446b8baf4/FLAG21f4c7de5 [2020-09-25 04:10:17,920 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:10:17,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2020-09-25 04:10:17,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5cfc2c9a/d55c5af2825c4766a26de0a446b8baf4/FLAG21f4c7de5 [2020-09-25 04:10:18,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5cfc2c9a/d55c5af2825c4766a26de0a446b8baf4 [2020-09-25 04:10:18,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:10:18,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:10:18,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:10:18,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:10:18,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:10:18,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:10:18" (1/1) ... [2020-09-25 04:10:18,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5611f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18, skipping insertion in model container [2020-09-25 04:10:18,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:10:18" (1/1) ... [2020-09-25 04:10:18,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:10:18,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:10:18,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:10:18,827 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:10:18,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:10:18,973 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:10:18,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18 WrapperNode [2020-09-25 04:10:18,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:10:18,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:10:18,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:10:18,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:10:18,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18" (1/1) ... [2020-09-25 04:10:18,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18" (1/1) ... [2020-09-25 04:10:19,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18" (1/1) ... [2020-09-25 04:10:19,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18" (1/1) ... [2020-09-25 04:10:19,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18" (1/1) ... [2020-09-25 04:10:19,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18" (1/1) ... [2020-09-25 04:10:19,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18" (1/1) ... [2020-09-25 04:10:19,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:10:19,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:10:19,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:10:19,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:10:19,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18" (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 [2020-09-25 04:10:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:10:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:10:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:10:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:10:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:10:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:10:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:10:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:10:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:10:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:10:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:10:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:10:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:10:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:10:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:10:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:10:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:10:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:10:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:10:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:10:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:10:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:10:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:10:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:10:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:10:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:10:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:10:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:10:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:10:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:10:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:10:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:10:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:10:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:10:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:10:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 04:10:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:10:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:10:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:10:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:10:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:10:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:10:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:10:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:10:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:10:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:10:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:10:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:10:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:10:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:10:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:10:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:10:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:10:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:10:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:10:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:10:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:10:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:10:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 04:10:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:10:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:10:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:10:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:10:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:10:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:10:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:10:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:10:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:10:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:10:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:10:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:10:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:10:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:10:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:10:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:10:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:10:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:10:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:10:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:10:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:10:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:10:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:10:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:10:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:10:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:10:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:10:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:10:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:10:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:10:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:10:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:10:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:10:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:10:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:10:20,270 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:10:20,270 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:10:20,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:10:20 BoogieIcfgContainer [2020-09-25 04:10:20,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:10:20,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:10:20,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:10:20,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:10:20,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:10:18" (1/3) ... [2020-09-25 04:10:20,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19972340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:10:20, skipping insertion in model container [2020-09-25 04:10:20,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:10:18" (2/3) ... [2020-09-25 04:10:20,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19972340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:10:20, skipping insertion in model container [2020-09-25 04:10:20,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:10:20" (3/3) ... [2020-09-25 04:10:20,286 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product40.cil.c [2020-09-25 04:10:20,298 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:10:20,309 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:10:20,330 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:10:20,361 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:10:20,362 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:10:20,362 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:10:20,362 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:10:20,362 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:10:20,362 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:10:20,362 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:10:20,362 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:10:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2020-09-25 04:10:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:10:20,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:20,415 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] [2020-09-25 04:10:20,416 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:20,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:20,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1162021346, now seen corresponding path program 1 times [2020-09-25 04:10:20,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:20,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759663214] [2020-09-25 04:10:20,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:20,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:21,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:22,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:23,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:25,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:25,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:10:25,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 04:10:25,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:25,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:25,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:25,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:10:25,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:25,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:10:26,148 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:26,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:26,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:26,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:26,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:26,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:26,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 04:10:26,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:26,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:26,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:26,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:26,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:26,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:10:26,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:26,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:26,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:26,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:26,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:26,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:26,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:26,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:26,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:26,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:26,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:26,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:26,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:26,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:26,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:26,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:26,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:26,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:26,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:26,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:26,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:26,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:10:26,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:26,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:26,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:26,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:26,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:26,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:26,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:26,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:26,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:26,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:26,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:26,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:26,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:10:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:26,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:26,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:26,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:26,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:26,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:26,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:26,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:26,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:26,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:10:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:26,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:26,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:26,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:26,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:26,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:26,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:26,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:26,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:26,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:26,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:26,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:26,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759663214] [2020-09-25 04:10:26,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:26,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:10:26,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463009162] [2020-09-25 04:10:26,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:10:26,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:26,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:10:26,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:10:26,607 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2020-09-25 04:10:27,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:27,988 INFO L93 Difference]: Finished difference Result 500 states and 595 transitions. [2020-09-25 04:10:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:10:27,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:10:27,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:28,010 INFO L225 Difference]: With dead ends: 500 [2020-09-25 04:10:28,010 INFO L226 Difference]: Without dead ends: 309 [2020-09-25 04:10:28,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:10:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-25 04:10:28,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 265. [2020-09-25 04:10:28,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 04:10:28,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 288 transitions. [2020-09-25 04:10:28,143 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 288 transitions. Word has length 142 [2020-09-25 04:10:28,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:28,144 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 288 transitions. [2020-09-25 04:10:28,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:10:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 288 transitions. [2020-09-25 04:10:28,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:10:28,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:28,157 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] [2020-09-25 04:10:28,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:10:28,158 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:28,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:28,158 INFO L82 PathProgramCache]: Analyzing trace with hash -509379685, now seen corresponding path program 1 times [2020-09-25 04:10:28,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:28,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708462914] [2020-09-25 04:10:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:28,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:28,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:29,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:30,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:31,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:33,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:10:33,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:10:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 04:10:33,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:33,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:10:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:10:33,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:33,540 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:33,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:33,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:33,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:33,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:33,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 04:10:33,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:33,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:33,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:33,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:33,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:33,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:33,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:33,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:33,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:33,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:33,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:33,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:33,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:33,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:33,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:33,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:33,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:33,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:33,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:33,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:33,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:33,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:10:33,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:33,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:33,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:33,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:33,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:33,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:33,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:33,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:33,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:33,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:33,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:33,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:33,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:33,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:33,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:10:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:33,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:33,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:33,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:33,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:33,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:33,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:33,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:33,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:33,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:33,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:10:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:33,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:33,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:33,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:33,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:33,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:33,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:33,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:33,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708462914] [2020-09-25 04:10:33,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:33,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:10:33,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293890318] [2020-09-25 04:10:33,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:10:33,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:33,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:10:33,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:10:33,750 INFO L87 Difference]: Start difference. First operand 265 states and 288 transitions. Second operand 4 states. [2020-09-25 04:10:34,369 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:10:35,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:35,460 INFO L93 Difference]: Finished difference Result 407 states and 458 transitions. [2020-09-25 04:10:35,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:10:35,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:10:35,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:35,466 INFO L225 Difference]: With dead ends: 407 [2020-09-25 04:10:35,466 INFO L226 Difference]: Without dead ends: 292 [2020-09-25 04:10:35,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:10:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-09-25 04:10:35,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 255. [2020-09-25 04:10:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 04:10:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 275 transitions. [2020-09-25 04:10:35,515 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 275 transitions. Word has length 143 [2020-09-25 04:10:35,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:35,516 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 275 transitions. [2020-09-25 04:10:35,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:10:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 275 transitions. [2020-09-25 04:10:35,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 04:10:35,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:35,519 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] [2020-09-25 04:10:35,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:10:35,519 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:35,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:35,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1147925299, now seen corresponding path program 1 times [2020-09-25 04:10:35,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:35,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698546668] [2020-09-25 04:10:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:35,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:35,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:36,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:37,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:40,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:40,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:10:40,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:40,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 04:10:40,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:40,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:40,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:10:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:10:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:40,935 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:40,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:40,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:41,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:41,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:41,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:10:41,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:41,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:41,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:41,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:41,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:41,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:41,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:41,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:41,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:41,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:41,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:41,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:41,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:41,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:41,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:41,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:41,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:41,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:41,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:41,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:41,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:41,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:41,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:41,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:41,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:41,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:41,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:41,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:41,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:41,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:41,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:41,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:41,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:41,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:41,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:41,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:41,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:41,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:41,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:41,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:41,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:10:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:41,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:41,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:41,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:10:41,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:41,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:41,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:41,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:10:41,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:41,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 04:10:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:41,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:41,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:41,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:41,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:41,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:41,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:41,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:10:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:41,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:41,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:41,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:41,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:41,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:41,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:41,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:41,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:41,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:10:41,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:41,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:41,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698546668] [2020-09-25 04:10:41,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:41,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:10:41,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179774574] [2020-09-25 04:10:41,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:10:41,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:41,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:10:41,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:10:41,153 INFO L87 Difference]: Start difference. First operand 255 states and 275 transitions. Second operand 5 states. [2020-09-25 04:10:41,631 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:10:43,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:43,500 INFO L93 Difference]: Finished difference Result 615 states and 712 transitions. [2020-09-25 04:10:43,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:10:43,501 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 04:10:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:43,507 INFO L225 Difference]: With dead ends: 615 [2020-09-25 04:10:43,507 INFO L226 Difference]: Without dead ends: 470 [2020-09-25 04:10:43,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:10:43,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-09-25 04:10:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 390. [2020-09-25 04:10:43,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-25 04:10:43,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 431 transitions. [2020-09-25 04:10:43,573 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 431 transitions. Word has length 156 [2020-09-25 04:10:43,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:43,574 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 431 transitions. [2020-09-25 04:10:43,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:10:43,574 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 431 transitions. [2020-09-25 04:10:43,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 04:10:43,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:43,577 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] [2020-09-25 04:10:43,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:10:43,577 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:43,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:43,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1964515528, now seen corresponding path program 1 times [2020-09-25 04:10:43,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:43,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59949991] [2020-09-25 04:10:43,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:43,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:44,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:46,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:48,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:48,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 04:10:48,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:10:48,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 04:10:48,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:48,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:48,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:10:48,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 04:10:48,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:10:48,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:49,052 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:49,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:49,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:49,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:10:49,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:49,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 04:10:49,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:49,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:49,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:49,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:49,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:49,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:49,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:10:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:49,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:49,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:49,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:49,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:49,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:49,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:49,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:49,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:10:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:49,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:49,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:49,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:49,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:49,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:49,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:49,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:49,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:49,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:49,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:49,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:10:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:49,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:49,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:49,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:49,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:49,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:49,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:49,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:49,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:49,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:10:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:49,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:49,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:10:49,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:49,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:10:49,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:49,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:49,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 04:10:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:49,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:49,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:10:49,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:49,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:10:49,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:49,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:10:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:49,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:10:49,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:49,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:10:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:49,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:49,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:49,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:49,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:10:49,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:49,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:10:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:10:49,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:49,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:10:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:49,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:49,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:49,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:10:49,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:10:49,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:10:49,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:49,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:10:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:10:49,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:10:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:10:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:10:49,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59949991] [2020-09-25 04:10:49,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:10:49,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:10:49,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086710440] [2020-09-25 04:10:49,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:10:49,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:10:49,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:10:49,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:10:49,368 INFO L87 Difference]: Start difference. First operand 390 states and 431 transitions. Second operand 9 states. [2020-09-25 04:10:49,860 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:10:51,109 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:10:51,429 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:10:51,751 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:10:52,068 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:10:52,364 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:10:52,982 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:10:53,293 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:10:53,620 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:10:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:10:54,559 INFO L93 Difference]: Finished difference Result 925 states and 1107 transitions. [2020-09-25 04:10:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:10:54,560 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 04:10:54,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:10:54,568 INFO L225 Difference]: With dead ends: 925 [2020-09-25 04:10:54,568 INFO L226 Difference]: Without dead ends: 645 [2020-09-25 04:10:54,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:10:54,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2020-09-25 04:10:54,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 568. [2020-09-25 04:10:54,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-09-25 04:10:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 646 transitions. [2020-09-25 04:10:54,668 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 646 transitions. Word has length 161 [2020-09-25 04:10:54,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:10:54,669 INFO L479 AbstractCegarLoop]: Abstraction has 568 states and 646 transitions. [2020-09-25 04:10:54,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:10:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 646 transitions. [2020-09-25 04:10:54,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 04:10:54,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:10:54,672 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] [2020-09-25 04:10:54,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:10:54,673 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:10:54,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:10:54,673 INFO L82 PathProgramCache]: Analyzing trace with hash 218420569, now seen corresponding path program 1 times [2020-09-25 04:10:54,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:10:54,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428430342] [2020-09-25 04:10:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:10:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:54,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:55,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:10:59,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:10:59,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 04:10:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:10:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4987 [2020-09-25 04:10:59,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:10:59,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:10:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:10:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 04:10:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:10:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:10:59,979 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:10:59,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:10:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:10:59,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:11:00,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 04:11:00,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:00,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:00,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:11:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:00,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:11:00,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:00,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:11:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:00,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:11:00,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:00,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:11:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:00,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:11:00,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:00,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:00,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:11:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:11:00,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:11:00,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:00,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:11:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:11:00,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:00,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:00,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:11:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 04:11:00,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 04:11:00,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:11:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 04:11:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:11:00,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:00,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:11:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:11:00,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 04:11:00,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:11:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:11:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:11:00,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:00,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:11:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:11:00,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 04:11:00,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:11:00,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:00,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 04:11:00,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:00,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:11:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:11:00,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:11:00,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:11:00,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:11:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:11:00,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:00,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:11:00,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:00,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 04:11:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:00,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:11:00,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:11:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:11:00,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 04:11:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:00,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:11:00,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:11:00,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:11:00,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:11:00,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:11:00,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:11:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:11:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:11:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:11:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:11:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:11:00,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428430342] [2020-09-25 04:11:00,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:11:00,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:11:00,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431912744] [2020-09-25 04:11:00,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:11:00,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:11:00,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:11:00,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:11:00,401 INFO L87 Difference]: Start difference. First operand 568 states and 646 transitions. Second operand 10 states. [2020-09-25 04:11:01,793 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:11:02,040 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:11:02,307 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:11:02,629 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:11:02,943 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:11:03,231 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:11:04,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:11:04,341 INFO L93 Difference]: Finished difference Result 1201 states and 1453 transitions. [2020-09-25 04:11:04,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:11:04,343 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-25 04:11:04,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:11:04,350 INFO L225 Difference]: With dead ends: 1201 [2020-09-25 04:11:04,350 INFO L226 Difference]: Without dead ends: 743 [2020-09-25 04:11:04,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:11:04,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-09-25 04:11:04,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 587. [2020-09-25 04:11:04,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-09-25 04:11:04,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 666 transitions. [2020-09-25 04:11:04,435 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 666 transitions. Word has length 194 [2020-09-25 04:11:04,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:11:04,435 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 666 transitions. [2020-09-25 04:11:04,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:11:04,436 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 666 transitions. [2020-09-25 04:11:04,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 04:11:04,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:11:04,439 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] [2020-09-25 04:11:04,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:11:04,439 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:11:04,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:11:04,440 INFO L82 PathProgramCache]: Analyzing trace with hash -755449607, now seen corresponding path program 1 times [2020-09-25 04:11:04,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:11:04,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469353468] [2020-09-25 04:11:04,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:11:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:11:04,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:11:04,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking...