/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 --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 interpolation-heuristic=FIRST --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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:13:35,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:13:35,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:13:35,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:13:35,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:13:35,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:13:35,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:13:35,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:13:35,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:13:35,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:13:35,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:13:35,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:13:35,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:13:35,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:13:35,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:13:35,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:13:35,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:13:35,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:13:35,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:13:35,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:13:35,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:13:35,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:13:35,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:13:35,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:13:35,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:13:35,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:13:35,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:13:35,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:13:35,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:13:35,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:13:35,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:13:35,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:13:35,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:13:35,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:13:35,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:13:35,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:13:35,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:13:35,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:13:35,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:13:35,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:13:35,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:13:35,730 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 [2020-09-21 11:13:35,789 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:13:35,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:13:35,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:13:35,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:13:35,792 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:13:35,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:13:35,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:13:35,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:13:35,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:13:35,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:13:35,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:13:35,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:13:35,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:13:35,795 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:13:35,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:13:35,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:13:35,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:13:35,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:13:35,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:13:35,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:13:35,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:13:35,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:13:35,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:13:35,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:13:35,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:13:35,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:13:35,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:13:35,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:13:35,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:13:35,799 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:13:36,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:13:36,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:13:36,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:13:36,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:13:36,292 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:13:36,293 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-21 11:13:36,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c59c923c/128d9c2c31dd4bb7b6ca88148d804122/FLAG92ba303d4 [2020-09-21 11:13:36,966 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:13:36,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product50.cil.c [2020-09-21 11:13:36,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c59c923c/128d9c2c31dd4bb7b6ca88148d804122/FLAG92ba303d4 [2020-09-21 11:13:37,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c59c923c/128d9c2c31dd4bb7b6ca88148d804122 [2020-09-21 11:13:37,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:13:37,222 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:13:37,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:37,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:13:37,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:13:37,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:37" (1/1) ... [2020-09-21 11:13:37,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634162df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37, skipping insertion in model container [2020-09-21 11:13:37,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:37" (1/1) ... [2020-09-21 11:13:37,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:13:37,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:13:37,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:37,793 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:13:37,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:37,918 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:13:37,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37 WrapperNode [2020-09-21 11:13:37,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:37,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:13:37,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:13:37,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:13:37,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37" (1/1) ... [2020-09-21 11:13:37,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37" (1/1) ... [2020-09-21 11:13:37,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37" (1/1) ... [2020-09-21 11:13:37,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37" (1/1) ... [2020-09-21 11:13:37,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37" (1/1) ... [2020-09-21 11:13:38,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37" (1/1) ... [2020-09-21 11:13:38,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37" (1/1) ... [2020-09-21 11:13:38,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:13:38,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:13:38,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:13:38,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:13:38,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37" (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 [2020-09-21 11:13:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:13:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:13:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:13:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:13:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:13:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:13:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:13:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:13:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:13:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:13:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:13:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:13:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:13:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:13:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:13:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:13:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:13:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:13:38,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:13:38,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:13:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:13:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:13:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:13:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:13:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:13:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:13:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:13:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:13:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:13:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:13:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:13:38,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:13:38,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:13:38,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:13:38,147 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:13:38,147 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:13:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:13:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:13:38,149 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:13:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:13:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:13:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:13:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:13:38,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:13:38,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:13:38,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:13:38,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:38,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:13:38,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:38,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:38,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:13:38,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:13:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:13:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:13:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:13:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:13:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:13:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:13:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:13:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:13:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:13:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:13:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:13:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:13:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:13:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:13:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:13:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:13:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:13:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:13:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:13:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:13:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:13:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:13:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:13:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:13:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:13:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:13:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:13:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:13:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:13:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:13:38,160 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:13:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:13:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:13:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:13:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:13:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:13:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:13:39,291 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:13:39,292 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:13:39,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:39 BoogieIcfgContainer [2020-09-21 11:13:39,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:13:39,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:13:39,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:13:39,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:13:39,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:13:37" (1/3) ... [2020-09-21 11:13:39,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35572b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:39, skipping insertion in model container [2020-09-21 11:13:39,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:37" (2/3) ... [2020-09-21 11:13:39,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35572b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:39, skipping insertion in model container [2020-09-21 11:13:39,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:39" (3/3) ... [2020-09-21 11:13:39,315 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2020-09-21 11:13:39,326 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:13:39,339 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:13:39,358 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:13:39,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:13:39,385 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:13:39,385 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:13:39,385 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:13:39,386 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:13:39,386 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:13:39,386 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:13:39,386 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:13:39,410 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2020-09-21 11:13:39,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:13:39,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:39,423 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] [2020-09-21 11:13:39,424 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:39,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:39,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1488722281, now seen corresponding path program 1 times [2020-09-21 11:13:39,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:39,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439496333] [2020-09-21 11:13:39,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:13:39,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:13:39,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:13:39,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,201 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:40,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,321 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:40,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:40,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,342 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,343 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:40,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:40,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:40,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:40,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:40,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:40,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:40,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439496333] [2020-09-21 11:13:40,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:40,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:13:40,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97541474] [2020-09-21 11:13:40,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:13:40,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:40,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:13:40,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:40,404 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 3 states. [2020-09-21 11:13:41,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:41,653 INFO L93 Difference]: Finished difference Result 306 states and 398 transitions. [2020-09-21 11:13:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:13:41,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:13:41,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:41,675 INFO L225 Difference]: With dead ends: 306 [2020-09-21 11:13:41,675 INFO L226 Difference]: Without dead ends: 165 [2020-09-21 11:13:41,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:41,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-21 11:13:41,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 132. [2020-09-21 11:13:41,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-21 11:13:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2020-09-21 11:13:41,791 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2020-09-21 11:13:41,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:41,792 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2020-09-21 11:13:41,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:13:41,792 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2020-09-21 11:13:41,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:13:41,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:41,797 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] [2020-09-21 11:13:41,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:13:41,797 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:41,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:41,798 INFO L82 PathProgramCache]: Analyzing trace with hash 469599371, now seen corresponding path program 1 times [2020-09-21 11:13:41,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:41,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849253436] [2020-09-21 11:13:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:13:41,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:41,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:13:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:41,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,185 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:42,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,195 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,196 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,196 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,234 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,234 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,250 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:42,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:42,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,255 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:42,261 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:42,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:42,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:42,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:42,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:42,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849253436] [2020-09-21 11:13:42,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:42,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:42,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097069639] [2020-09-21 11:13:42,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:42,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:42,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:42,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:42,275 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 4 states. [2020-09-21 11:13:42,732 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:43,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:43,619 INFO L93 Difference]: Finished difference Result 235 states and 285 transitions. [2020-09-21 11:13:43,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:43,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:13:43,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:43,624 INFO L225 Difference]: With dead ends: 235 [2020-09-21 11:13:43,624 INFO L226 Difference]: Without dead ends: 149 [2020-09-21 11:13:43,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-09-21 11:13:43,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2020-09-21 11:13:43,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-21 11:13:43,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2020-09-21 11:13:43,667 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2020-09-21 11:13:43,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:43,667 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2020-09-21 11:13:43,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:43,667 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2020-09-21 11:13:43,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:13:43,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:43,670 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] [2020-09-21 11:13:43,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:13:43,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:43,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:43,670 INFO L82 PathProgramCache]: Analyzing trace with hash 305445596, now seen corresponding path program 1 times [2020-09-21 11:13:43,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:43,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537738960] [2020-09-21 11:13:43,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:44,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:13:44,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-21 11:13:44,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:13:44,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:44,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:13:44,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,403 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:44,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:44,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:44,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:13:44,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:44,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:44,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:44,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:44,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:44,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:44,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:44,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:44,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:44,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:44,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:44,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:44,557 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:44,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:44,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:44,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:44,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:44,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:44,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:44,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:44,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:44,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:44,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:44,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:44,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:44,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:13:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:44,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:44,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:44,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:44,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:44,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:44,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537738960] [2020-09-21 11:13:44,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:44,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:44,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226962101] [2020-09-21 11:13:44,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:44,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:44,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:44,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:44,598 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 4 states. [2020-09-21 11:13:44,894 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:45,790 INFO L93 Difference]: Finished difference Result 248 states and 303 transitions. [2020-09-21 11:13:45,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:45,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-21 11:13:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:45,795 INFO L225 Difference]: With dead ends: 248 [2020-09-21 11:13:45,796 INFO L226 Difference]: Without dead ends: 149 [2020-09-21 11:13:45,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:45,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-09-21 11:13:45,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2020-09-21 11:13:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-21 11:13:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2020-09-21 11:13:45,853 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2020-09-21 11:13:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:45,853 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2020-09-21 11:13:45,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2020-09-21 11:13:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:13:45,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:45,863 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] [2020-09-21 11:13:45,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:13:45,863 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:45,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:45,863 INFO L82 PathProgramCache]: Analyzing trace with hash 892474279, now seen corresponding path program 1 times [2020-09-21 11:13:45,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:45,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988292921] [2020-09-21 11:13:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:13:46,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-09-21 11:13:46,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:13:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:46,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:13:46,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:46,659 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:46,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:46,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:13:46,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:46,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:46,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:46,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:46,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:46,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:46,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:46,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:46,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:46,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,819 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,820 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,820 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:46,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:46,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:46,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:13:46,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:46,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:46,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:13:46,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:46,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:46,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:46,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:46,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:46,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:46,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,929 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,930 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:46,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:46,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:46,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:46,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:13:46,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:13:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,938 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,938 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,939 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:46,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:46,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:46,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:13:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:46,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:46,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:46,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:46,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:46,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:46,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:46,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:46,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:46,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:46,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:46,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988292921] [2020-09-21 11:13:46,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:46,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:13:46,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898687953] [2020-09-21 11:13:46,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:13:46,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:46,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:13:46,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:13:46,964 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 7 states. [2020-09-21 11:13:47,346 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:48,643 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:49,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:49,423 INFO L93 Difference]: Finished difference Result 345 states and 425 transitions. [2020-09-21 11:13:49,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:49,424 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-09-21 11:13:49,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:49,428 INFO L225 Difference]: With dead ends: 345 [2020-09-21 11:13:49,428 INFO L226 Difference]: Without dead ends: 246 [2020-09-21 11:13:49,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:49,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-21 11:13:49,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 203. [2020-09-21 11:13:49,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-21 11:13:49,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2020-09-21 11:13:49,479 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2020-09-21 11:13:49,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:49,479 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2020-09-21 11:13:49,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:13:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2020-09-21 11:13:49,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:13:49,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:49,481 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] [2020-09-21 11:13:49,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:49,482 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:49,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:49,482 INFO L82 PathProgramCache]: Analyzing trace with hash 861206730, now seen corresponding path program 1 times [2020-09-21 11:13:49,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:49,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147422782] [2020-09-21 11:13:49,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:49,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,959 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:13:49,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-09-21 11:13:49,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-21 11:13:49,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:50,350 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:50,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:50,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:13:50,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:50,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:50,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:50,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:50,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:50,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,475 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,476 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,476 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:50,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:50,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,484 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,484 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,485 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:50,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:50,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:50,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:50,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:50,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:50,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,519 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,519 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:50,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:50,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:50,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:13:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:50,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:50,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:50,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:50,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,549 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:50,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:50,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:50,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:50,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:50,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:50,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:50,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:50,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:13:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:50,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:50,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:50,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:13:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:50,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:50,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:50,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:50,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:50,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:50,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:50,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:50,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:50,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:50,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:50,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:50,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147422782] [2020-09-21 11:13:50,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:50,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:50,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015465129] [2020-09-21 11:13:50,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:50,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:50,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:50,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:50,644 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand 8 states. [2020-09-21 11:13:51,131 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:52,394 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:52,729 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:53,035 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:53,353 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:54,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:54,330 INFO L93 Difference]: Finished difference Result 536 states and 670 transitions. [2020-09-21 11:13:54,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:54,331 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-21 11:13:54,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:54,335 INFO L225 Difference]: With dead ends: 536 [2020-09-21 11:13:54,335 INFO L226 Difference]: Without dead ends: 357 [2020-09-21 11:13:54,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:54,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-21 11:13:54,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 318. [2020-09-21 11:13:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-09-21 11:13:54,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 368 transitions. [2020-09-21 11:13:54,412 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 368 transitions. Word has length 79 [2020-09-21 11:13:54,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:54,412 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 368 transitions. [2020-09-21 11:13:54,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:54,413 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 368 transitions. [2020-09-21 11:13:54,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:13:54,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:54,414 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] [2020-09-21 11:13:54,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:54,415 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:54,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1806957424, now seen corresponding path program 1 times [2020-09-21 11:13:54,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:54,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041716388] [2020-09-21 11:13:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:54,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:54,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:54,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:54,884 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:54,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:13:54,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-09-21 11:13:54,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:13:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,249 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:55,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,329 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,329 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,330 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 11:13:55,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:55,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:55,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,367 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:55,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:55,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:55,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:55,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,376 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:55,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:55,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:55,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:13:55,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:55,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:55,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:55,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:55,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:55,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:55,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:55,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:13:55,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,513 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:55,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:55,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:55,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:55,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:55,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:55,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:55,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:55,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,538 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,538 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:55,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:55,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:55,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:55,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:55,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:55,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:55,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:55,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:55,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:55,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:13:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,556 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,556 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,557 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,557 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:55,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:55,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:55,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:55,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:55,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:13:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:55,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:55,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:55,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:55,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:55,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:55,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:55,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:55,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:55,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:55,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:55,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:55,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:55,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041716388] [2020-09-21 11:13:55,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:55,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:55,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135556801] [2020-09-21 11:13:55,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:55,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:55,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:55,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:55,595 INFO L87 Difference]: Start difference. First operand 318 states and 368 transitions. Second operand 9 states. [2020-09-21 11:13:56,190 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:56,888 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:58,533 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:00,281 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-21 11:14:01,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:01,737 INFO L93 Difference]: Finished difference Result 877 states and 1087 transitions. [2020-09-21 11:14:01,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:14:01,738 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:14:01,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:01,745 INFO L225 Difference]: With dead ends: 877 [2020-09-21 11:14:01,745 INFO L226 Difference]: Without dead ends: 687 [2020-09-21 11:14:01,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:14:01,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2020-09-21 11:14:01,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 639. [2020-09-21 11:14:01,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-09-21 11:14:01,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 758 transitions. [2020-09-21 11:14:01,868 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 758 transitions. Word has length 83 [2020-09-21 11:14:01,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:01,869 INFO L479 AbstractCegarLoop]: Abstraction has 639 states and 758 transitions. [2020-09-21 11:14:01,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:01,869 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 758 transitions. [2020-09-21 11:14:01,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:14:01,871 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:01,871 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] [2020-09-21 11:14:01,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:14:01,871 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:01,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:01,872 INFO L82 PathProgramCache]: Analyzing trace with hash 304332945, now seen corresponding path program 1 times [2020-09-21 11:14:01,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:01,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054502979] [2020-09-21 11:14:01,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:01,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:01,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:01,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:01,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:01,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:14:01,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:01,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:01,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:01,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:01,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:14:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:01,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:02,167 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:02,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,182 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:02,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:02,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:02,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:02,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,211 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,211 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:02,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:02,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:02,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:02,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:02,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:02,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:02,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:02,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:02,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:02,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 30 [2020-09-21 11:14:02,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:02,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:02,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:02,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:02,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,284 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:02,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:02,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:02,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:02,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:14:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,303 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,303 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,304 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:14:02,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:02,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:02,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:14:02,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:02,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:02,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,320 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,321 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:02,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:02,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:02,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:14:02,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:02,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:02,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,336 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:02,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:02,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:02,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:14:02,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:02,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:02,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,380 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,380 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:02,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:02,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:02,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,400 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,401 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,401 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:02,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:02,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:14:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:02,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:14:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,409 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:02,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:02,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:02,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:02,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:02,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:14:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:02,415 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:02,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:02,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:02,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:02,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:02,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:02,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:02,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:02,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054502979] [2020-09-21 11:14:02,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:02,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:14:02,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002816544] [2020-09-21 11:14:02,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:14:02,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:02,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:14:02,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:14:02,435 INFO L87 Difference]: Start difference. First operand 639 states and 758 transitions. Second operand 8 states. [2020-09-21 11:14:03,417 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:03,707 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:04,024 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:05,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:05,253 INFO L93 Difference]: Finished difference Result 1191 states and 1459 transitions. [2020-09-21 11:14:05,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:14:05,258 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-09-21 11:14:05,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:05,264 INFO L225 Difference]: With dead ends: 1191 [2020-09-21 11:14:05,264 INFO L226 Difference]: Without dead ends: 684 [2020-09-21 11:14:05,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:05,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2020-09-21 11:14:05,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 639. [2020-09-21 11:14:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-09-21 11:14:05,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 757 transitions. [2020-09-21 11:14:05,395 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 757 transitions. Word has length 83 [2020-09-21 11:14:05,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:05,396 INFO L479 AbstractCegarLoop]: Abstraction has 639 states and 757 transitions. [2020-09-21 11:14:05,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:14:05,396 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 757 transitions. [2020-09-21 11:14:05,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:14:05,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:05,398 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] [2020-09-21 11:14:05,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:14:05,398 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:05,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:05,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1690536339, now seen corresponding path program 1 times [2020-09-21 11:14:05,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:05,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770636504] [2020-09-21 11:14:05,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:05,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -59 [2020-09-21 11:14:05,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 59 [2020-09-21 11:14:05,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:14:05,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:14:05,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-21 11:14:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,731 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:05,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:05,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:05,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,774 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:05,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:05,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:05,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:05,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:05,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:05,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:05,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:05,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:05,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:05,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:05,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,801 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,801 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,801 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,801 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:05,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:05,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:05,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:14:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:14:05,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:05,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:05,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:14:05,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:05,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,840 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,841 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,841 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:05,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:05,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:05,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:14:05,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:05,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,868 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,869 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,869 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:05,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:05,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:05,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:05,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:14:05,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:05,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:05,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:05,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:05,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:05,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:14:05,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:14:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:05,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:05,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:05,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:14:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:05,919 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:05,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:05,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:05,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:05,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:05,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:05,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:05,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:05,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:05,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770636504] [2020-09-21 11:14:05,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:05,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:14:05,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883608261] [2020-09-21 11:14:05,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:05,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:05,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:05,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:05,936 INFO L87 Difference]: Start difference. First operand 639 states and 757 transitions. Second operand 9 states. [2020-09-21 11:14:06,950 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:07,289 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:07,617 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:07,915 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:09,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:09,098 INFO L93 Difference]: Finished difference Result 1273 states and 1553 transitions. [2020-09-21 11:14:09,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:14:09,099 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:14:09,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:09,104 INFO L225 Difference]: With dead ends: 1273 [2020-09-21 11:14:09,104 INFO L226 Difference]: Without dead ends: 658 [2020-09-21 11:14:09,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:14:09,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-09-21 11:14:09,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 618. [2020-09-21 11:14:09,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-21 11:14:09,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 727 transitions. [2020-09-21 11:14:09,241 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 727 transitions. Word has length 83 [2020-09-21 11:14:09,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:09,241 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 727 transitions. [2020-09-21 11:14:09,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:09,242 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 727 transitions. [2020-09-21 11:14:09,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 11:14:09,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:09,243 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] [2020-09-21 11:14:09,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:14:09,244 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:09,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:09,244 INFO L82 PathProgramCache]: Analyzing trace with hash 728997157, now seen corresponding path program 1 times [2020-09-21 11:14:09,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:09,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882522242] [2020-09-21 11:14:09,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,302 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,302 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,303 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-21 11:14:09,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:14:09,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:09,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:14:09,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-21 11:14:09,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,666 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:09,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:09,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:09,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:09,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:09,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:09,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:09,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:09,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,710 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:09,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:09,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:09,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:09,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:09,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:09,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:09,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:09,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:09,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:09,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:09,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:09,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:09,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:14:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,763 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,764 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,764 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:09,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:09,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:09,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:09,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,780 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,781 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,781 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:09,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:09,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:14:09,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:09,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:09,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:14:09,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:09,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:09,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:14:09,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:09,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,817 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,817 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:09,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:09,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:09,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:14:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:09,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:09,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 11:14:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:09,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:09,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:09,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:09,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:09,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:09,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:09,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:09,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:09,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:14:09,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882522242] [2020-09-21 11:14:09,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:09,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:14:09,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842507160] [2020-09-21 11:14:09,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:09,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:09,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:09,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:09,865 INFO L87 Difference]: Start difference. First operand 618 states and 727 transitions. Second operand 9 states. [2020-09-21 11:14:10,848 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:11,481 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:11,852 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:12,195 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:12,534 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:13,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:13,812 INFO L93 Difference]: Finished difference Result 1171 states and 1420 transitions. [2020-09-21 11:14:13,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:14:13,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-09-21 11:14:13,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:13,818 INFO L225 Difference]: With dead ends: 1171 [2020-09-21 11:14:13,818 INFO L226 Difference]: Without dead ends: 690 [2020-09-21 11:14:13,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:14:13,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2020-09-21 11:14:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 612. [2020-09-21 11:14:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-09-21 11:14:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 719 transitions. [2020-09-21 11:14:13,936 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 719 transitions. Word has length 84 [2020-09-21 11:14:13,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:13,937 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 719 transitions. [2020-09-21 11:14:13,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:13,937 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 719 transitions. [2020-09-21 11:14:13,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-09-21 11:14:13,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:13,943 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:13,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:14:13,943 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:13,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:13,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1471064898, now seen corresponding path program 1 times [2020-09-21 11:14:13,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:13,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606246690] [2020-09-21 11:14:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,002 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,002 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,002 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,002 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-21 11:14:14,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:14:14,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-21 11:14:14,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:14,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,270 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:14,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,308 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:14,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,320 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,325 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,326 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:14,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,354 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,354 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:14,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:14:14,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:14,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:14,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,391 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:14,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:14,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:14:14,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:14,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,409 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,410 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:14,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:14:14,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:14:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:14,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:14,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:14,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:14,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:14:14,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:14,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:14:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:14,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:14,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,517 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,518 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:14,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:14:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:14,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 11:14:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:14,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:14:14,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:14:14,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:14,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:14:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-21 11:14:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:14,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:14,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:14:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:14,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:14,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:14,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:14,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:14,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:14,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:14,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:14,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:14,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:14,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:14,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:14,661 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:14:14,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606246690] [2020-09-21 11:14:14,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:14,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:14:14,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103212027] [2020-09-21 11:14:14,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:14:14,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:14,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:14:14,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:14:14,664 INFO L87 Difference]: Start difference. First operand 612 states and 719 transitions. Second operand 10 states. [2020-09-21 11:14:16,046 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:16,379 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:16,619 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:16,897 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:18,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:18,072 INFO L93 Difference]: Finished difference Result 1234 states and 1486 transitions. [2020-09-21 11:14:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:14:18,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 130 [2020-09-21 11:14:18,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:18,076 INFO L225 Difference]: With dead ends: 1234 [2020-09-21 11:14:18,076 INFO L226 Difference]: Without dead ends: 646 [2020-09-21 11:14:18,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:14:18,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2020-09-21 11:14:18,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 612. [2020-09-21 11:14:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-09-21 11:14:18,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 717 transitions. [2020-09-21 11:14:18,206 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 717 transitions. Word has length 130 [2020-09-21 11:14:18,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:18,207 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 717 transitions. [2020-09-21 11:14:18,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:14:18,207 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 717 transitions. [2020-09-21 11:14:18,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-09-21 11:14:18,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:18,212 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:18,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:14:18,213 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:18,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:18,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1681399932, now seen corresponding path program 1 times [2020-09-21 11:14:18,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:18,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144226008] [2020-09-21 11:14:18,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:18,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -49 [2020-09-21 11:14:18,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 49 [2020-09-21 11:14:18,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-21 11:14:18,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:14:18,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:14:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:18,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,552 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:18,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,563 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:18,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,595 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:18,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:18,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:18,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:18,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:14:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:18,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:18,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:18,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:14:18,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:18,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:18,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:18,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:18,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:14:18,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:18,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:18,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:18,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:14:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:18,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:18,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:18,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:18,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:14:18,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:18,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:18,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:18,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:18,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:18,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,749 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,749 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,749 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,750 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:18,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:14:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:18,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,760 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,761 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:14:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:18,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 11:14:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:18,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:14:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:14:18,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:18,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:14:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-21 11:14:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,809 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,809 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:18,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:14:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:18,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:18,814 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:18,814 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:18,814 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:18,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:18,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:18,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:18,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:18,832 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:14:18,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144226008] [2020-09-21 11:14:18,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:18,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:14:18,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277444055] [2020-09-21 11:14:18,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:18,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:18,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:18,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:18,835 INFO L87 Difference]: Start difference. First operand 612 states and 717 transitions. Second operand 9 states. [2020-09-21 11:14:19,712 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:20,015 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:20,295 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:21,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:21,326 INFO L93 Difference]: Finished difference Result 1140 states and 1360 transitions. [2020-09-21 11:14:21,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:14:21,332 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 130 [2020-09-21 11:14:21,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:21,336 INFO L225 Difference]: With dead ends: 1140 [2020-09-21 11:14:21,336 INFO L226 Difference]: Without dead ends: 552 [2020-09-21 11:14:21,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:21,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-09-21 11:14:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 531. [2020-09-21 11:14:21,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-09-21 11:14:21,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 615 transitions. [2020-09-21 11:14:21,445 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 615 transitions. Word has length 130 [2020-09-21 11:14:21,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:21,446 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 615 transitions. [2020-09-21 11:14:21,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:21,446 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 615 transitions. [2020-09-21 11:14:21,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-09-21 11:14:21,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:21,448 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:21,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:14:21,449 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:21,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:21,449 INFO L82 PathProgramCache]: Analyzing trace with hash 34208085, now seen corresponding path program 1 times [2020-09-21 11:14:21,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:21,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943393680] [2020-09-21 11:14:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,512 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,512 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-21 11:14:21,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:21,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:21,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-21 11:14:21,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:21,836 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:21,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:21,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:21,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:21,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:21,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:21,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,892 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:21,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:21,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,898 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:21,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:21,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,911 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:21,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:14:21,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:14:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:21,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:21,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:21,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:21,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:21,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:21,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,991 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:21,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:21,992 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:21,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:21,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:21,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:21,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:21,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:21,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:21,999 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:21,999 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,000 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:22,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:22,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:22,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:22,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:22,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,006 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,006 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:22,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:22,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:22,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:22,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:22,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:14:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,014 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,014 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,015 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:22,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:22,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:22,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:22,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:22,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:22,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:22,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:22,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:22,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:14:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,030 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,030 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,031 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,031 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:22,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:22,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:22,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:22,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:22,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-21 11:14:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:22,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:22,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:22,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:14:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:22,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:22,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:14:22,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:22,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:22,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:22,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:14:22,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,150 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,150 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,150 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:22,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:22,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:22,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:14:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,159 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,159 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,160 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,160 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:22,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:22,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:22,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-21 11:14:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,166 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,166 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:22,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:22,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:22,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:22,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:22,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-21 11:14:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:22,172 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:22,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:22,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:22,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:22,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:22,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:22,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:22,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:22,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:22,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:22,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-21 11:14:22,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943393680] [2020-09-21 11:14:22,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:22,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:14:22,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380516743] [2020-09-21 11:14:22,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:14:22,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:22,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:14:22,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:14:22,209 INFO L87 Difference]: Start difference. First operand 531 states and 615 transitions. Second operand 10 states. [2020-09-21 11:14:23,856 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:24,180 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:24,500 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:24,828 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:25,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:25,289 INFO L93 Difference]: Finished difference Result 1011 states and 1200 transitions. [2020-09-21 11:14:25,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:14:25,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-09-21 11:14:25,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:25,294 INFO L225 Difference]: With dead ends: 1011 [2020-09-21 11:14:25,294 INFO L226 Difference]: Without dead ends: 567 [2020-09-21 11:14:25,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:14:25,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-09-21 11:14:25,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 546. [2020-09-21 11:14:25,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-09-21 11:14:25,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 630 transitions. [2020-09-21 11:14:25,405 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 630 transitions. Word has length 134 [2020-09-21 11:14:25,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:25,405 INFO L479 AbstractCegarLoop]: Abstraction has 546 states and 630 transitions. [2020-09-21 11:14:25,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:14:25,406 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 630 transitions. [2020-09-21 11:14:25,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-09-21 11:14:25,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:25,409 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:25,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:14:25,409 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:25,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:25,410 INFO L82 PathProgramCache]: Analyzing trace with hash -475265005, now seen corresponding path program 1 times [2020-09-21 11:14:25,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:25,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151246589] [2020-09-21 11:14:25,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,502 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-21 11:14:25,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:14:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-21 11:14:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:14:25,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,837 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:25,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,873 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:25,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:25,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:25,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:25,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:25,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,886 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,886 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,886 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:25,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:25,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:25,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:14:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:25,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,951 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:25,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,959 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:25,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:25,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,970 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,971 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,971 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:25,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:14:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,977 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,977 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,977 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:25,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,983 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,983 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,983 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,983 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:25,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:14:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:25,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:25,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:25,990 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:25,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:25,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:25,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:25,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:25,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:25,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:25,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:25,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:25,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:25,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-21 11:14:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,002 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,003 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,003 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,003 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:26,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:26,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:14:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:26,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,012 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:14:26,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:26,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:26,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:26,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,016 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,016 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,017 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:26,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:26,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:26,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:26,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:14:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:26,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:26,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:26,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-21 11:14:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,031 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:26,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:26,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:26,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-21 11:14:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:26,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:26,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:26,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:26,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:26,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:26,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:26,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:26,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:26,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:26,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:26,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:26,077 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-21 11:14:26,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151246589] [2020-09-21 11:14:26,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:26,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:14:26,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937578089] [2020-09-21 11:14:26,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:14:26,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:26,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:14:26,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:14:26,080 INFO L87 Difference]: Start difference. First operand 546 states and 630 transitions. Second operand 10 states. [2020-09-21 11:14:26,621 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:28,454 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:28,827 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:29,148 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:14:29,448 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:29,815 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190