/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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:13:34,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:13:34,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:13:34,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:13:34,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:13:34,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:13:34,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:13:34,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:13:34,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:13:34,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:13:34,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:13:34,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:13:34,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:13:34,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:13:34,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:13:34,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:13:34,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:13:34,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:13:34,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:13:34,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:13:34,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:13:34,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:13:34,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:13:34,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:13:34,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:13:34,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:13:34,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:13:34,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:13:34,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:13:34,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:13:34,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:13:34,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:13:34,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:13:34,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:13:34,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:13:34,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:13:34,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:13:34,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:13:34,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:13:34,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:13:34,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:13:34,676 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 11:13:34,703 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:13:34,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:13:34,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:13:34,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:13:34,706 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:13:34,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:13:34,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:13:34,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:13:34,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:13:34,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:13:34,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:13:34,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:13:34,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:13:34,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:13:34,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:13:34,708 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:13:34,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:13:34,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:13:34,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:13:34,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:13:34,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:13:34,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:13:34,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:13:34,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:13:34,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:13:34,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:13:34,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:13:34,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:13:34,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:13:34,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.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 11:13:35,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:13:35,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:13:35,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:13:35,200 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:13:35,201 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:13:35,202 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-21 11:13:35,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b6c59218/f67266585b0440c4885cbacee49780db/FLAGac3f849f5 [2020-09-21 11:13:35,918 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:13:35,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-09-21 11:13:35,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b6c59218/f67266585b0440c4885cbacee49780db/FLAGac3f849f5 [2020-09-21 11:13:36,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b6c59218/f67266585b0440c4885cbacee49780db [2020-09-21 11:13:36,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:13:36,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:13:36,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:36,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:13:36,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:13:36,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:36" (1/1) ... [2020-09-21 11:13:36,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36, skipping insertion in model container [2020-09-21 11:13:36,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:36" (1/1) ... [2020-09-21 11:13:36,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:13:36,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:13:36,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:36,784 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:13:36,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:36,917 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:13:36,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36 WrapperNode [2020-09-21 11:13:36,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:36,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:13:36,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:13:36,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:13:36,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36" (1/1) ... [2020-09-21 11:13:36,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36" (1/1) ... [2020-09-21 11:13:36,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36" (1/1) ... [2020-09-21 11:13:36,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36" (1/1) ... [2020-09-21 11:13:36,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36" (1/1) ... [2020-09-21 11:13:37,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36" (1/1) ... [2020-09-21 11:13:37,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36" (1/1) ... [2020-09-21 11:13:37,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:13:37,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:13:37,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:13:37,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:13:37,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36" (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 11:13:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:13:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:13:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:13:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:13:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:13:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:13:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:13:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:13:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:13:37,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:13:37,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:13:37,104 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:13:37,104 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:13:37,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:13:37,105 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:13:37,105 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:13:37,105 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:13:37,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:13:37,106 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:13:37,106 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:13:37,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:13:37,106 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:13:37,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:13:37,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:13:37,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:37,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:13:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:13:37,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:13:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:13:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:13:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:13:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:13:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:13:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:13:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:13:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:13:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:13:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:13:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:13:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:13:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:13:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:13:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:13:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:13:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:13:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:13:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:13:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:13:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:13:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:13:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:13:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:13:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:13:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:13:37,113 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:13:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:13:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:13:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:13:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:13:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:13:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:13:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:13:37,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:13:38,244 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:13:38,244 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:13:38,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:38 BoogieIcfgContainer [2020-09-21 11:13:38,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:13:38,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:13:38,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:13:38,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:13:38,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:13:36" (1/3) ... [2020-09-21 11:13:38,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f7e431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:38, skipping insertion in model container [2020-09-21 11:13:38,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:36" (2/3) ... [2020-09-21 11:13:38,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f7e431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:38, skipping insertion in model container [2020-09-21 11:13:38,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:38" (3/3) ... [2020-09-21 11:13:38,264 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-09-21 11:13:38,276 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:13:38,287 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:13:38,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:13:38,333 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:13:38,333 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:13:38,333 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:13:38,333 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:13:38,333 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:13:38,333 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:13:38,333 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:13:38,333 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:13:38,359 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-21 11:13:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:13:38,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:38,372 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 11:13:38,372 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:38,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:38,379 INFO L82 PathProgramCache]: Analyzing trace with hash 916136138, now seen corresponding path program 1 times [2020-09-21 11:13:38,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:38,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556481281] [2020-09-21 11:13:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:38,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:38,764 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:38,764 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:38,764 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:38,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:13:38,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:38,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:13:38,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:38,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:13:38,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:38,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:39,183 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:39,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:39,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:39,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:39,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:39,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,328 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,329 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,329 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:39,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:39,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,336 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:39,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:39,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,344 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,345 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:39,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:39,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:39,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:39,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:39,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:39,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:39,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:39,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:39,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:39,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:39,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:39,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:39,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:39,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:39,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:39,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:39,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:39,381 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 11:13:39,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556481281] [2020-09-21 11:13:39,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:39,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:13:39,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720070210] [2020-09-21 11:13:39,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:13:39,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:39,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:13:39,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:39,416 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 3 states. [2020-09-21 11:13:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:40,539 INFO L93 Difference]: Finished difference Result 297 states and 388 transitions. [2020-09-21 11:13:40,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:13:40,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:13:40,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:40,561 INFO L225 Difference]: With dead ends: 297 [2020-09-21 11:13:40,562 INFO L226 Difference]: Without dead ends: 160 [2020-09-21 11:13:40,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:40,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-21 11:13:40,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 128. [2020-09-21 11:13:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-21 11:13:40,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2020-09-21 11:13:40,671 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2020-09-21 11:13:40,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:40,672 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2020-09-21 11:13:40,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:13:40,672 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2020-09-21 11:13:40,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:13:40,676 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:40,676 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 11:13:40,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:13:40,676 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:40,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:40,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1104947330, now seen corresponding path program 1 times [2020-09-21 11:13:40,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:40,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167822304] [2020-09-21 11:13:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:40,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:40,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:40,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:40,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:40,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:13:40,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:40,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:40,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:13:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:40,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:41,042 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:41,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:41,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:41,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:41,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:41,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:41,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:41,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,113 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:41,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:41,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:41,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:41,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,118 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,119 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:41,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:41,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:41,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:41,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:41,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,125 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,125 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,125 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:41,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:41,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:41,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:41,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:41,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:41,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,133 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,133 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:41,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:41,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:41,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:41,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:41,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:41,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:41,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:41,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:41,146 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:41,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:41,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:41,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:41,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:41,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:41,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:41,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:41,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:41,157 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 11:13:41,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167822304] [2020-09-21 11:13:41,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:41,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:41,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274332685] [2020-09-21 11:13:41,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:41,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:41,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:41,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:41,163 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 4 states. [2020-09-21 11:13:41,590 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:42,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:42,453 INFO L93 Difference]: Finished difference Result 230 states and 279 transitions. [2020-09-21 11:13:42,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:42,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:13:42,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:42,458 INFO L225 Difference]: With dead ends: 230 [2020-09-21 11:13:42,458 INFO L226 Difference]: Without dead ends: 144 [2020-09-21 11:13:42,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:42,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-21 11:13:42,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 119. [2020-09-21 11:13:42,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-09-21 11:13:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2020-09-21 11:13:42,494 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2020-09-21 11:13:42,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:42,495 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2020-09-21 11:13:42,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2020-09-21 11:13:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:13:42,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:42,498 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] [2020-09-21 11:13:42,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:13:42,498 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:42,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1852359913, now seen corresponding path program 1 times [2020-09-21 11:13:42,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:42,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378138158] [2020-09-21 11:13:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:42,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:42,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:42,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:42,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:42,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 11:13:42,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:42,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 11:13:42,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:13:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,017 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:43,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:13:43,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:43,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:43,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:43,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:43,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,127 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:43,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,133 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:43,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:43,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:43,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:43,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:43,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,148 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:13:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,162 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 11:13:43,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378138158] [2020-09-21 11:13:43,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:43,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:43,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769869553] [2020-09-21 11:13:43,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:43,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:43,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:43,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:43,165 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 4 states. [2020-09-21 11:13:43,509 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:44,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:44,392 INFO L93 Difference]: Finished difference Result 239 states and 293 transitions. [2020-09-21 11:13:44,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:44,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:13:44,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:44,396 INFO L225 Difference]: With dead ends: 239 [2020-09-21 11:13:44,396 INFO L226 Difference]: Without dead ends: 144 [2020-09-21 11:13:44,397 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 11:13:44,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-21 11:13:44,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 119. [2020-09-21 11:13:44,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-09-21 11:13:44,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-09-21 11:13:44,431 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2020-09-21 11:13:44,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:44,432 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-09-21 11:13:44,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:44,432 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-09-21 11:13:44,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 11:13:44,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:44,434 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] [2020-09-21 11:13:44,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:13:44,435 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:44,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:44,435 INFO L82 PathProgramCache]: Analyzing trace with hash 458129541, now seen corresponding path program 1 times [2020-09-21 11:13:44,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:44,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552934209] [2020-09-21 11:13:44,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:44,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 11:13:44,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-21 11:13:44,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:13:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-21 11:13:44,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,108 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:45,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 11:13:45,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:45,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,246 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,246 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,247 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,247 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:45,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:45,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:45,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:45,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:45,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:13:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,283 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,284 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,284 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:13:45,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:45,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:13:45,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:45,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,299 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:45,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:45,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:45,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:45,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:45,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,420 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,420 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,421 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:45,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:45,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:45,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:13:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:45,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:13:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:45,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:45,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:45,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:45,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:45,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:45,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:45,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:45,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:45,454 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 11:13:45,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552934209] [2020-09-21 11:13:45,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:45,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:13:45,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245983965] [2020-09-21 11:13:45,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:13:45,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:45,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:13:45,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:13:45,459 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 7 states. [2020-09-21 11:13:45,889 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:47,116 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:47,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:47,818 INFO L93 Difference]: Finished difference Result 331 states and 409 transitions. [2020-09-21 11:13:47,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:47,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-21 11:13:47,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:47,825 INFO L225 Difference]: With dead ends: 331 [2020-09-21 11:13:47,825 INFO L226 Difference]: Without dead ends: 236 [2020-09-21 11:13:47,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:47,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-09-21 11:13:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 195. [2020-09-21 11:13:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-21 11:13:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2020-09-21 11:13:47,912 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2020-09-21 11:13:47,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:47,912 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2020-09-21 11:13:47,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:13:47,913 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2020-09-21 11:13:47,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:13:47,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:47,915 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] [2020-09-21 11:13:47,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:47,915 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:47,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:47,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1170867649, now seen corresponding path program 1 times [2020-09-21 11:13:47,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:47,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996439614] [2020-09-21 11:13:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:48,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:13:48,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-21 11:13:48,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-21 11:13:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,709 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:48,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:13:48,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:48,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:48,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:48,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:48,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:48,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,817 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,818 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:48,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:48,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:48,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:13:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,841 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,842 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,842 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:48,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:13:48,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:48,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:48,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:48,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:48,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:48,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:48,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:48,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:48,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:48,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:13:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:48,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:48,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:48,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:48,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:48,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:13:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,917 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,917 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:48,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:48,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:48,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:48,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:48,941 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 11:13:48,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996439614] [2020-09-21 11:13:48,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:48,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:48,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026204847] [2020-09-21 11:13:48,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:48,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:48,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:48,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:48,944 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 8 states. [2020-09-21 11:13:49,673 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:50,962 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:51,304 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:51,595 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:51,878 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:52,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:52,752 INFO L93 Difference]: Finished difference Result 509 states and 640 transitions. [2020-09-21 11:13:52,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:52,752 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-09-21 11:13:52,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:52,761 INFO L225 Difference]: With dead ends: 509 [2020-09-21 11:13:52,761 INFO L226 Difference]: Without dead ends: 338 [2020-09-21 11:13:52,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:52,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-09-21 11:13:52,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 302. [2020-09-21 11:13:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-09-21 11:13:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 352 transitions. [2020-09-21 11:13:52,828 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 352 transitions. Word has length 78 [2020-09-21 11:13:52,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:52,829 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 352 transitions. [2020-09-21 11:13:52,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:52,829 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 352 transitions. [2020-09-21 11:13:52,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:13:52,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:52,831 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] [2020-09-21 11:13:52,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:52,831 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:52,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:52,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1015740793, now seen corresponding path program 1 times [2020-09-21 11:13:52,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:52,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240969684] [2020-09-21 11:13:52,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,268 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,268 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-21 11:13:53,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-09-21 11:13:53,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:53,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:53,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-21 11:13:53,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,569 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:13:53,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:53,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:53,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:53,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:53,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:53,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:53,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:53,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:53,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:53,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,710 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,711 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:53,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:53,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,744 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:53,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:53,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:13:53,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:53,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:53,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,780 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:53,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:53,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:53,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:53,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:13:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:53,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:53,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:13:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:13:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,819 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,835 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 11:13:53,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240969684] [2020-09-21 11:13:53,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:53,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:53,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379567628] [2020-09-21 11:13:53,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:53,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:53,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:53,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:53,838 INFO L87 Difference]: Start difference. First operand 302 states and 352 transitions. Second operand 9 states. [2020-09-21 11:13:54,350 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:55,007 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:56,522 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:58,165 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-21 11:13:59,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:59,577 INFO L93 Difference]: Finished difference Result 834 states and 1041 transitions. [2020-09-21 11:13:59,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:13:59,578 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-21 11:13:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:59,584 INFO L225 Difference]: With dead ends: 834 [2020-09-21 11:13:59,585 INFO L226 Difference]: Without dead ends: 652 [2020-09-21 11:13:59,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:13:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-09-21 11:13:59,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 607. [2020-09-21 11:13:59,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-09-21 11:13:59,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 726 transitions. [2020-09-21 11:13:59,705 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 726 transitions. Word has length 82 [2020-09-21 11:13:59,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:59,706 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 726 transitions. [2020-09-21 11:13:59,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 726 transitions. [2020-09-21 11:13:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:13:59,707 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:59,708 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] [2020-09-21 11:13:59,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:13:59,708 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:59,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:59,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1167936134, now seen corresponding path program 1 times [2020-09-21 11:13:59,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:59,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32633869] [2020-09-21 11:13:59,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:59,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:59,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:59,756 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:59,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:59,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-21 11:13:59,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:59,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:59,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:13:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:59,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,033 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:00,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,042 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,070 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,074 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,074 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,075 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,075 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,104 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:00,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:14:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,122 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,123 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,123 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:14:00,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:00,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:14:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:00,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:00,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:00,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:14:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:00,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:00,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:00,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:14:00,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:00,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,183 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,184 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:00,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:00,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:00,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:00,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:00,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:00,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:14:00,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:14:00,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:14:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,219 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:00,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:00,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:14:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:00,224 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:00,224 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:00,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:00,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:00,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:00,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:00,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:00,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:00,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:00,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:00,236 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 11:14:00,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32633869] [2020-09-21 11:14:00,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:00,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:14:00,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347177194] [2020-09-21 11:14:00,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:14:00,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:00,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:14:00,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:14:00,240 INFO L87 Difference]: Start difference. First operand 607 states and 726 transitions. Second operand 8 states. [2020-09-21 11:14:01,156 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:01,481 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:01,802 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:02,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:02,965 INFO L93 Difference]: Finished difference Result 1132 states and 1397 transitions. [2020-09-21 11:14:02,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:14:02,968 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-09-21 11:14:02,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:02,977 INFO L225 Difference]: With dead ends: 1132 [2020-09-21 11:14:02,977 INFO L226 Difference]: Without dead ends: 649 [2020-09-21 11:14:02,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-09-21 11:14:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 607. [2020-09-21 11:14:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-09-21 11:14:03,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 725 transitions. [2020-09-21 11:14:03,107 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 725 transitions. Word has length 82 [2020-09-21 11:14:03,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:03,107 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 725 transitions. [2020-09-21 11:14:03,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:14:03,107 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 725 transitions. [2020-09-21 11:14:03,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:14:03,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:03,109 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] [2020-09-21 11:14:03,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:14:03,110 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:03,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:03,110 INFO L82 PathProgramCache]: Analyzing trace with hash 218267260, now seen corresponding path program 1 times [2020-09-21 11:14:03,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:03,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177474727] [2020-09-21 11:14:03,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:03,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -58 [2020-09-21 11:14:03,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 58 [2020-09-21 11:14:03,161 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-21 11:14:03,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:03,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:03,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-09-21 11:14:03,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:03,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,485 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:03,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,494 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:03,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:03,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:03,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:03,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,537 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,537 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:03,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:03,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,549 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:03,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:03,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:14:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:14:03,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:03,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:03,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:14:03,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:03,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,582 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,583 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:03,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:03,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:14:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:03,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,619 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:03,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:03,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:14:03,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:03,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:03,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:14:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:14:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,665 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:03,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:14:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:03,670 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:03,670 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:03,670 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:03,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:03,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:03,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:03,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:03,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:03,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:03,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:03,683 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 11:14:03,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177474727] [2020-09-21 11:14:03,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:03,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:14:03,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089969467] [2020-09-21 11:14:03,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:03,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:03,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:03,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:03,686 INFO L87 Difference]: Start difference. First operand 607 states and 725 transitions. Second operand 9 states. [2020-09-21 11:14:04,737 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:05,058 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:05,386 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:05,682 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:06,894 INFO L93 Difference]: Finished difference Result 1206 states and 1483 transitions. [2020-09-21 11:14:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:14:06,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-21 11:14:06,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:06,901 INFO L225 Difference]: With dead ends: 1206 [2020-09-21 11:14:06,901 INFO L226 Difference]: Without dead ends: 623 [2020-09-21 11:14:06,904 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 11:14:06,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-09-21 11:14:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 586. [2020-09-21 11:14:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-09-21 11:14:07,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 695 transitions. [2020-09-21 11:14:07,036 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 695 transitions. Word has length 82 [2020-09-21 11:14:07,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:07,037 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 695 transitions. [2020-09-21 11:14:07,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:07,037 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 695 transitions. [2020-09-21 11:14:07,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:14:07,042 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:07,042 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 11:14:07,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:14:07,042 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:07,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:07,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1628009646, now seen corresponding path program 1 times [2020-09-21 11:14:07,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:07,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177967439] [2020-09-21 11:14:07,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:14:07,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:07,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:07,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:14:07,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-21 11:14:07,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,361 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:07,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,369 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,370 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:07,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:07,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:07,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:07,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:07,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:07,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:07,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:07,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,406 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,406 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,407 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:07,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:07,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,411 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,411 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:07,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:07,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:07,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:07,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:07,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:07,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:07,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:07,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:07,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:07,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:14:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:07,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:07,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:07,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:07,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,462 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,463 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:07,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:07,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:14:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,475 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,475 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:07,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:07,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:14:07,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:07,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:07,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:07,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:14:07,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:07,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:07,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:07,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:07,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:07,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:07,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:14:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,508 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,509 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:07,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:07,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:07,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:07,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:14:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:07,526 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:07,526 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:07,526 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:07,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:07,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:07,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:07,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:07,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:07,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:07,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:07,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:07,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:07,541 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 11:14:07,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177967439] [2020-09-21 11:14:07,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:14:07,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:14:07,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994588967] [2020-09-21 11:14:07,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:07,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:07,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:07,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:07,544 INFO L87 Difference]: Start difference. First operand 586 states and 695 transitions. Second operand 9 states. [2020-09-21 11:14:08,626 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:09,305 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:09,671 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:10,020 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:10,322 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:11,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:11,602 INFO L93 Difference]: Finished difference Result 1104 states and 1350 transitions. [2020-09-21 11:14:11,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:14:11,603 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:14:11,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:11,607 INFO L225 Difference]: With dead ends: 1104 [2020-09-21 11:14:11,607 INFO L226 Difference]: Without dead ends: 647 [2020-09-21 11:14:11,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:14:11,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-09-21 11:14:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 580. [2020-09-21 11:14:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-21 11:14:11,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 687 transitions. [2020-09-21 11:14:11,726 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 687 transitions. Word has length 83 [2020-09-21 11:14:11,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:11,731 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 687 transitions. [2020-09-21 11:14:11,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:11,732 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 687 transitions. [2020-09-21 11:14:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-21 11:14:11,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:11,738 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] [2020-09-21 11:14:11,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:14:11,738 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:11,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:11,738 INFO L82 PathProgramCache]: Analyzing trace with hash -772272072, now seen corresponding path program 1 times [2020-09-21 11:14:11,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:11,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629816139] [2020-09-21 11:14:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:11,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:11,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:11,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:11,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:11,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-21 11:14:11,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:14:11,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:11,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:11,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-21 11:14:11,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:11,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,142 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:12,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,152 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,182 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,182 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:12,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:12,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:12,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:12,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:14:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:12,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:12,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:14:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:12,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:12,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:14:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:12,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:12,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:12,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:12,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:14:12,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,332 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,332 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:12,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:12,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:12,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:14:12,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:12,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:14:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,410 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:12,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:14:12,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:12,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,419 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,420 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:12,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:14:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:12,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:12,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 11:14:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,465 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:12,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:14:12,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,478 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,479 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,479 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,479 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:14:12,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:14:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:12,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:12,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:12,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-21 11:14:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:12,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-21 11:14:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:12,523 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:12,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:12,524 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:12,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:12,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:12,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:12,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:12,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:12,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:12,578 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:14:12,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629816139] [2020-09-21 11:14:12,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:12,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:14:12,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270526582] [2020-09-21 11:14:12,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:14:12,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:12,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:14:12,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:14:12,582 INFO L87 Difference]: Start difference. First operand 580 states and 687 transitions. Second operand 10 states. [2020-09-21 11:14:14,111 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:14,352 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:14,621 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:14,958 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:16,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:16,091 INFO L93 Difference]: Finished difference Result 1167 states and 1416 transitions. [2020-09-21 11:14:16,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:14:16,097 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2020-09-21 11:14:16,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:16,101 INFO L225 Difference]: With dead ends: 1167 [2020-09-21 11:14:16,101 INFO L226 Difference]: Without dead ends: 611 [2020-09-21 11:14:16,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:14:16,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-09-21 11:14:16,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 580. [2020-09-21 11:14:16,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-21 11:14:16,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 685 transitions. [2020-09-21 11:14:16,213 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 685 transitions. Word has length 128 [2020-09-21 11:14:16,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:16,213 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 685 transitions. [2020-09-21 11:14:16,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:14:16,213 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 685 transitions. [2020-09-21 11:14:16,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-21 11:14:16,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:16,216 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] [2020-09-21 11:14:16,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:14:16,216 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:16,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:16,217 INFO L82 PathProgramCache]: Analyzing trace with hash -532032326, now seen corresponding path program 1 times [2020-09-21 11:14:16,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:16,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187612668] [2020-09-21 11:14:16,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,278 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:14:16,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -48 [2020-09-21 11:14:16,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 48 [2020-09-21 11:14:16,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-21 11:14:16,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:14:16,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 11:14:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:16,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,561 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:16,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,571 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:16,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:16,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:16,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:16,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:16,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:16,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:16,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:16,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,611 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,611 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:16,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:16,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:14:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:16,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:16,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:16,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:14:16,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:16,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:16,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:16,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:14:16,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:16,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:16,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:16,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:14:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:16,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:16,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:16,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:14:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:16,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:16,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:16,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:14:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:16,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:16,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:16,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:16,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:14:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:16,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:16,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:14:16,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:16,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:16,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:14:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:16,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:16,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:16,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 11:14:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,773 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:16,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:16,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:14:16,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,780 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:14:16,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:16,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:16,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:16,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:14:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:16,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:16,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:16,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-21 11:14:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,796 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,796 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:16,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:16,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-21 11:14:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:16,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:16,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:16,801 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:16,801 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:16,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:16,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:16,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:16,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:16,820 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:14:16,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187612668] [2020-09-21 11:14:16,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:16,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:14:16,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277761294] [2020-09-21 11:14:16,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:14:16,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:16,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:14:16,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:14:16,823 INFO L87 Difference]: Start difference. First operand 580 states and 685 transitions. Second operand 9 states. [2020-09-21 11:14:17,789 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:18,093 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:18,380 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:19,372 INFO L93 Difference]: Finished difference Result 1078 states and 1296 transitions. [2020-09-21 11:14:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:14:19,378 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 128 [2020-09-21 11:14:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:19,381 INFO L225 Difference]: With dead ends: 1078 [2020-09-21 11:14:19,382 INFO L226 Difference]: Without dead ends: 522 [2020-09-21 11:14:19,384 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 11:14:19,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-09-21 11:14:19,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 503. [2020-09-21 11:14:19,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-09-21 11:14:19,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 587 transitions. [2020-09-21 11:14:19,477 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 587 transitions. Word has length 128 [2020-09-21 11:14:19,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:19,477 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 587 transitions. [2020-09-21 11:14:19,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:14:19,478 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 587 transitions. [2020-09-21 11:14:19,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-21 11:14:19,479 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:19,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:19,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:14:19,480 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:19,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:19,480 INFO L82 PathProgramCache]: Analyzing trace with hash 759278389, now seen corresponding path program 1 times [2020-09-21 11:14:19,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:19,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989703235] [2020-09-21 11:14:19,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-21 11:14:19,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:19,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:19,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-09-21 11:14:19,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:19,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,789 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:19,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,796 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,796 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:19,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:19,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,824 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:19,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:19,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:19,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:19,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,832 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,832 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,832 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:19,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:19,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,836 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,836 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,836 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:19,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:19,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:19,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:19,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:14:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:19,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:14:19,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:19,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:19,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:19,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:19,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:19,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,902 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,902 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:19,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:19,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:19,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:19,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:19,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:19,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:14:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:19,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:19,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:19,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:19,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:14:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,930 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,930 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:19,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:19,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:19,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:14:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:19,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:14:19,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:19,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:14:19,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:14:19,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:19,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:19,993 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:19,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:19,994 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:19,994 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:19,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:14:19,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:19,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:19,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:14:19,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:20,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:20,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:20,035 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:20,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:20,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:20,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:20,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:20,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:20,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:20,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:14:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:20,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:20,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:20,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:20,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:20,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:20,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:20,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:20,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:20,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:20,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:20,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:20,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:20,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 11:14:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:20,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:20,047 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:20,047 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:20,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:20,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:20,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:20,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:20,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:20,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:20,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:20,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-21 11:14:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:20,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:20,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:20,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:20,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:20,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:20,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:20,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:20,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:20,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:20,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:20,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:20,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:20,078 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-21 11:14:20,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989703235] [2020-09-21 11:14:20,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:20,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:14:20,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543264587] [2020-09-21 11:14:20,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:14:20,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:20,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:14:20,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:14:20,081 INFO L87 Difference]: Start difference. First operand 503 states and 587 transitions. Second operand 10 states. [2020-09-21 11:14:21,692 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:14:21,997 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:14:22,294 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:22,590 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:23,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:23,037 INFO L93 Difference]: Finished difference Result 957 states and 1144 transitions. [2020-09-21 11:14:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:14:23,042 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-09-21 11:14:23,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:23,046 INFO L225 Difference]: With dead ends: 957 [2020-09-21 11:14:23,046 INFO L226 Difference]: Without dead ends: 537 [2020-09-21 11:14:23,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:14:23,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-09-21 11:14:23,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 518. [2020-09-21 11:14:23,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-09-21 11:14:23,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 602 transitions. [2020-09-21 11:14:23,141 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 602 transitions. Word has length 132 [2020-09-21 11:14:23,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:23,142 INFO L479 AbstractCegarLoop]: Abstraction has 518 states and 602 transitions. [2020-09-21 11:14:23,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:14:23,142 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 602 transitions. [2020-09-21 11:14:23,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-21 11:14:23,144 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:23,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:23,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:14:23,144 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:23,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:23,145 INFO L82 PathProgramCache]: Analyzing trace with hash 249805299, now seen corresponding path program 1 times [2020-09-21 11:14:23,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:23,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087156734] [2020-09-21 11:14:23,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-21 11:14:23,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:14:23,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:23,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-21 11:14:23,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:14:23,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,531 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:23,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:23,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:23,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,581 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:23,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:14:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,626 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:23,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:23,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:23,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:23,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:23,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:23,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:14:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:23,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:23,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:14:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,698 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,699 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,699 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:23,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:14:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,708 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:14:23,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:14:23,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:14:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:14:23,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:23,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:23,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:23,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:14:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:14:23,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 11:14:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:23,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:23,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:23,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-21 11:14:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:23,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:23,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:23,749 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:23,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:23,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:23,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:14:23,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:23,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:14:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-21 11:14:23,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087156734] [2020-09-21 11:14:23,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:23,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:14:23,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524834079] [2020-09-21 11:14:23,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:14:23,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:23,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:14:23,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:14:23,802 INFO L87 Difference]: Start difference. First operand 518 states and 602 transitions. Second operand 10 states. [2020-09-21 11:14:24,518 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:14:26,177 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:14:26,530 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:26,895 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 11:14:27,190 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:27,559 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:14:28,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:14:28,003 INFO L93 Difference]: Finished difference Result 552 states and 650 transitions. [2020-09-21 11:14:28,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:14:28,004 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-09-21 11:14:28,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:14:28,009 INFO L225 Difference]: With dead ends: 552 [2020-09-21 11:14:28,009 INFO L226 Difference]: Without dead ends: 549 [2020-09-21 11:14:28,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:14:28,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-09-21 11:14:28,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 518. [2020-09-21 11:14:28,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-09-21 11:14:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 599 transitions. [2020-09-21 11:14:28,130 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 599 transitions. Word has length 132 [2020-09-21 11:14:28,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:14:28,131 INFO L479 AbstractCegarLoop]: Abstraction has 518 states and 599 transitions. [2020-09-21 11:14:28,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:14:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 599 transitions. [2020-09-21 11:14:28,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-21 11:14:28,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:14:28,133 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, 1, 1, 1, 1, 1, 1] [2020-09-21 11:14:28,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:14:28,134 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:14:28,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:14:28,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1295460868, now seen corresponding path program 1 times [2020-09-21 11:14:28,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:14:28,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53856201] [2020-09-21 11:14:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:14:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-21 11:14:28,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:14:28,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:14:28,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:14:28,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-21 11:14:28,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,499 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:14:28,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:14:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,507 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,507 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:28,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:14:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,537 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,538 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,538 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:28,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:14:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:28,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:28,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:14:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,546 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:28,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:28,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:14:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:28,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:28,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:14:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:28,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:28,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:14:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:14:28,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 11:14:28,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,614 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,614 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,614 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:14:28,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:14:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:14:28,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:14:28,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,640 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:14:28,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:28,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:14:28,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,650 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,650 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,651 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:14:28,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:28,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:14:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:14:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:28,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:28,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:14:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,670 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,670 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:14:28,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:28,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:14:28,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:28,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:28,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:14:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:28,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:28,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:14:28,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:14:28,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:14:28,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:14:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-21 11:14:28,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:14:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-21 11:14:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,714 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:14:28,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:14:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,720 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,720 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,720 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:28,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:14:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:14:28,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:28,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:14:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:14:28,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:14:28,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:14:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:28,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:14:28,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:14:28,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:14:28,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:14:28,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-21 11:14:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:14:28,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:14:28,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:14:28,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:14:28,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:14:28,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:14:28,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:14:28,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:14:28,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:14:28,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:14:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:14:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:14:28,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:14:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:14:28,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53856201] [2020-09-21 11:14:28,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:14:28,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:14:28,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100123961] [2020-09-21 11:14:28,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:14:28,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:14:28,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:14:28,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:14:28,784 INFO L87 Difference]: Start difference. First operand 518 states and 599 transitions. Second operand 12 states. [2020-09-21 11:14:29,470 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:14:30,207 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186