/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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:12:47,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:12:47,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:12:47,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:12:47,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:12:47,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:12:47,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:12:47,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:12:47,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:12:47,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:12:47,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:12:47,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:12:47,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:12:47,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:12:47,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:12:47,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:12:47,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:12:47,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:12:47,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:12:47,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:12:47,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:12:47,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:12:47,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:12:47,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:12:47,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:12:47,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:12:47,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:12:47,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:12:47,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:12:47,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:12:47,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:12:47,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:12:47,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:12:47,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:12:47,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:12:47,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:12:47,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:12:47,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:12:47,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:12:47,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:12:47,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:12:47,718 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 11:12:47,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:12:47,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:12:47,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:12:47,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:12:47,765 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:12:47,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:12:47,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:12:47,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:12:47,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:12:47,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:12:47,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:12:47,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:12:47,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:12:47,768 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:12:47,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:12:47,768 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:12:47,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:12:47,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:12:47,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:12:47,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:12:47,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:12:47,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:12:47,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:12:47,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:12:47,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:12:47,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:12:47,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:12:47,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:12:47,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:12:47,771 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 11:12:48,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:12:48,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:12:48,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:12:48,224 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:12:48,225 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:12:48,226 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-21 11:12:48,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a605daf64/e6facff3916e4bbf812d4104dd4a2764/FLAGd38abba23 [2020-09-21 11:12:48,901 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:12:48,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-21 11:12:48,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a605daf64/e6facff3916e4bbf812d4104dd4a2764/FLAGd38abba23 [2020-09-21 11:12:49,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a605daf64/e6facff3916e4bbf812d4104dd4a2764 [2020-09-21 11:12:49,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:12:49,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:12:49,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:49,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:12:49,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:12:49,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:49,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694adced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49, skipping insertion in model container [2020-09-21 11:12:49,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:49,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:12:49,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:12:49,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:49,858 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:12:49,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:49,986 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:12:49,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49 WrapperNode [2020-09-21 11:12:49,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:49,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:12:49,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:12:49,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:12:50,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:50,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:50,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:50,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:50,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:50,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:50,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49" (1/1) ... [2020-09-21 11:12:50,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:12:50,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:12:50,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:12:50,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:12:50,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49" (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 11:12:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:12:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:12:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:12:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:12:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:12:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:12:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:12:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:12:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:12:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:12:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:12:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:12:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:12:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:12:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:12:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:12:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:12:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:12:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:12:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:12:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:12:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:12:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:12:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:12:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:12:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:12:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:12:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:12:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:12:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:12:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:12:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:12:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:12:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:12:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:12:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:12:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:12:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:12:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:12:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:12:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:12:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:12:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:12:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:12:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:12:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:12:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:12:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:12:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:12:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:12:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:12:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:12:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:12:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:12:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:12:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:12:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:12:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:12:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:12:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:12:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:12:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:12:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:12:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:12:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:12:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:12:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:12:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:12:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:12:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:12:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:12:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:12:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:12:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:12:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:12:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:12:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:12:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:12:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:12:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:12:51,141 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:12:51,142 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:12:51,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:51 BoogieIcfgContainer [2020-09-21 11:12:51,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:12:51,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:12:51,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:12:51,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:12:51,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:12:49" (1/3) ... [2020-09-21 11:12:51,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2465660b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:51, skipping insertion in model container [2020-09-21 11:12:51,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:49" (2/3) ... [2020-09-21 11:12:51,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2465660b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:51, skipping insertion in model container [2020-09-21 11:12:51,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:51" (3/3) ... [2020-09-21 11:12:51,156 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-09-21 11:12:51,167 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:12:51,178 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:12:51,200 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:12:51,230 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:12:51,231 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:12:51,231 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:12:51,231 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:12:51,231 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:12:51,231 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:12:51,231 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:12:51,232 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:12:51,256 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2020-09-21 11:12:51,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:12:51,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:51,267 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 11:12:51,268 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:51,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:51,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1148002369, now seen corresponding path program 1 times [2020-09-21 11:12:51,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:51,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886753938] [2020-09-21 11:12:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:51,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:51,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:51,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:51,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:51,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:12:51,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:51,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:12:51,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:51,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:51,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:12:51,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:51,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,126 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:52,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,193 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,194 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,194 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:52,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:52,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:52,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:12:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:52,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:12:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:52,244 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 11:12:52,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886753938] [2020-09-21 11:12:52,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:52,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:12:52,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416656447] [2020-09-21 11:12:52,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:12:52,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:52,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:12:52,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:12:52,276 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 3 states. [2020-09-21 11:12:53,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:53,287 INFO L93 Difference]: Finished difference Result 269 states and 354 transitions. [2020-09-21 11:12:53,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:12:53,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:12:53,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:53,306 INFO L225 Difference]: With dead ends: 269 [2020-09-21 11:12:53,306 INFO L226 Difference]: Without dead ends: 146 [2020-09-21 11:12:53,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:12:53,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-21 11:12:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 114. [2020-09-21 11:12:53,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 11:12:53,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-09-21 11:12:53,403 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2020-09-21 11:12:53,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:53,404 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-09-21 11:12:53,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:12:53,404 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-09-21 11:12:53,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:12:53,408 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:53,408 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 11:12:53,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:12:53,408 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:53,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:53,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1455677075, now seen corresponding path program 1 times [2020-09-21 11:12:53,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:53,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475420032] [2020-09-21 11:12:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:12:53,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:12:53,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:53,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:12:53,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:12:53,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:12:53,871 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:53,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:53,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:53,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:53,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:53,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:53,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:53,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,939 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,939 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:53,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:53,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:53,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:53,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:53,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,953 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,953 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:53,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:12:53,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:53,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:12:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:53,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:53,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:53,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:53,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:12:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,963 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,963 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,963 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,963 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:53,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:53,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:53,972 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 11:12:53,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475420032] [2020-09-21 11:12:53,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:53,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:53,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162285976] [2020-09-21 11:12:53,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:53,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:53,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:53,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:53,976 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 4 states. [2020-09-21 11:12:54,415 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:12:55,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:55,196 INFO L93 Difference]: Finished difference Result 193 states and 235 transitions. [2020-09-21 11:12:55,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:55,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:12:55,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:55,200 INFO L225 Difference]: With dead ends: 193 [2020-09-21 11:12:55,200 INFO L226 Difference]: Without dead ends: 130 [2020-09-21 11:12:55,201 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 11:12:55,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-21 11:12:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 105. [2020-09-21 11:12:55,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 11:12:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-09-21 11:12:55,236 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2020-09-21 11:12:55,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:55,237 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-09-21 11:12:55,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:55,237 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-09-21 11:12:55,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:12:55,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:55,239 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 11:12:55,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:12:55,240 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:55,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:55,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1980509365, now seen corresponding path program 1 times [2020-09-21 11:12:55,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:55,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913667779] [2020-09-21 11:12:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:55,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:12:55,645 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:55,645 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:55,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:55,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 11:12:55,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:55,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-09-21 11:12:55,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:55,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:12:55,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:55,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:12:55,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:55,959 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:55,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,034 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:12:56,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,076 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,077 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,077 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:56,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:56,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,087 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,088 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:56,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:56,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:12:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:12:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,115 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 11:12:56,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913667779] [2020-09-21 11:12:56,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:56,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:56,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511801250] [2020-09-21 11:12:56,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:56,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:56,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:56,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:56,118 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 4 states. [2020-09-21 11:12:56,412 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:12:57,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:57,636 INFO L93 Difference]: Finished difference Result 302 states and 371 transitions. [2020-09-21 11:12:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:57,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:12:57,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:57,642 INFO L225 Difference]: With dead ends: 302 [2020-09-21 11:12:57,642 INFO L226 Difference]: Without dead ends: 221 [2020-09-21 11:12:57,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:12:57,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-21 11:12:57,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 174. [2020-09-21 11:12:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-21 11:12:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 205 transitions. [2020-09-21 11:12:57,695 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 205 transitions. Word has length 51 [2020-09-21 11:12:57,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:57,695 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 205 transitions. [2020-09-21 11:12:57,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 205 transitions. [2020-09-21 11:12:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:12:57,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:57,698 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] [2020-09-21 11:12:57,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:12:57,698 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:57,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:57,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1381408640, now seen corresponding path program 1 times [2020-09-21 11:12:57,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:57,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593822097] [2020-09-21 11:12:57,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,109 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:12:58,109 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:12:58,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-09-21 11:12:58,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:12:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:12:58,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,513 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:58,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,616 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,617 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,617 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 11:12:58,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:58,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:58,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,671 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,671 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:58,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:58,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:58,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:12:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,717 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:12:58,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:12:58,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:12:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:12:58,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:12:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:58,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:12:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,752 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:58,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,767 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 11:12:58,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593822097] [2020-09-21 11:12:58,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:58,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:12:58,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062803213] [2020-09-21 11:12:58,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:12:58,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:58,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:12:58,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:12:58,770 INFO L87 Difference]: Start difference. First operand 174 states and 205 transitions. Second operand 8 states. [2020-09-21 11:12:59,270 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:00,442 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:00,798 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:01,097 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:01,414 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:02,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:02,171 INFO L93 Difference]: Finished difference Result 530 states and 694 transitions. [2020-09-21 11:13:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:02,174 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-21 11:13:02,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:02,179 INFO L225 Difference]: With dead ends: 530 [2020-09-21 11:13:02,179 INFO L226 Difference]: Without dead ends: 380 [2020-09-21 11:13:02,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:02,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-09-21 11:13:02,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 323. [2020-09-21 11:13:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-21 11:13:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 389 transitions. [2020-09-21 11:13:02,267 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 389 transitions. Word has length 57 [2020-09-21 11:13:02,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:02,268 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 389 transitions. [2020-09-21 11:13:02,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:02,268 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 389 transitions. [2020-09-21 11:13:02,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:13:02,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:02,272 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] [2020-09-21 11:13:02,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:02,272 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:02,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:02,273 INFO L82 PathProgramCache]: Analyzing trace with hash -583051386, now seen corresponding path program 1 times [2020-09-21 11:13:02,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:02,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528219592] [2020-09-21 11:13:02,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:02,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:02,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:02,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:02,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:02,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:13:02,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:02,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-21 11:13:02,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:02,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:13:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-21 11:13:02,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,089 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:03,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:13:03,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,179 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:03,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,190 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,210 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,211 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:03,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:03,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,272 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:03,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:13:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:03,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:13:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,308 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 11:13:03,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528219592] [2020-09-21 11:13:03,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:03,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:13:03,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310750930] [2020-09-21 11:13:03,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:13:03,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:03,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:13:03,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:03,311 INFO L87 Difference]: Start difference. First operand 323 states and 389 transitions. Second operand 11 states. [2020-09-21 11:13:03,976 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:04,821 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:05,760 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:06,420 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-21 11:13:06,790 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:07,126 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:07,601 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:07,931 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:09,879 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-21 11:13:10,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:10,753 INFO L93 Difference]: Finished difference Result 1008 states and 1332 transitions. [2020-09-21 11:13:10,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 11:13:10,754 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-09-21 11:13:10,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:10,760 INFO L225 Difference]: With dead ends: 1008 [2020-09-21 11:13:10,760 INFO L226 Difference]: Without dead ends: 836 [2020-09-21 11:13:10,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=201, Invalid=729, Unknown=0, NotChecked=0, Total=930 [2020-09-21 11:13:10,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-09-21 11:13:10,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 683. [2020-09-21 11:13:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2020-09-21 11:13:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 823 transitions. [2020-09-21 11:13:10,896 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 823 transitions. Word has length 61 [2020-09-21 11:13:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:10,897 INFO L479 AbstractCegarLoop]: Abstraction has 683 states and 823 transitions. [2020-09-21 11:13:10,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:13:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 823 transitions. [2020-09-21 11:13:10,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:13:10,900 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:10,901 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] [2020-09-21 11:13:10,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:10,901 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:10,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:10,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1781576154, now seen corresponding path program 1 times [2020-09-21 11:13:10,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:10,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274978988] [2020-09-21 11:13:10,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,267 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:13:11,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-21 11:13:11,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:13:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:11,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:13:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:11,734 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:11,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,814 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,814 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:11,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:13:11,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:11,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,855 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,855 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,856 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,856 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:11,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:11,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:11,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:11,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:11,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:11,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:11,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:11,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:11,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:11,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:11,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:11,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:11,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:11,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:11,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,915 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:11,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:11,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:11,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:11,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:13:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:11,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:11,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:13:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:11,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:11,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:11,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:11,934 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 11:13:11,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274978988] [2020-09-21 11:13:11,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:11,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:13:11,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811808766] [2020-09-21 11:13:11,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:13:11,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:11,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:13:11,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:13:11,938 INFO L87 Difference]: Start difference. First operand 683 states and 823 transitions. Second operand 6 states. [2020-09-21 11:13:12,262 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:13,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:13,914 INFO L93 Difference]: Finished difference Result 1782 states and 2243 transitions. [2020-09-21 11:13:13,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:13,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-21 11:13:13,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:13,923 INFO L225 Difference]: With dead ends: 1782 [2020-09-21 11:13:13,923 INFO L226 Difference]: Without dead ends: 1123 [2020-09-21 11:13:13,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:13,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2020-09-21 11:13:14,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1053. [2020-09-21 11:13:14,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-09-21 11:13:14,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1271 transitions. [2020-09-21 11:13:14,128 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1271 transitions. Word has length 61 [2020-09-21 11:13:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:14,131 INFO L479 AbstractCegarLoop]: Abstraction has 1053 states and 1271 transitions. [2020-09-21 11:13:14,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:13:14,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1271 transitions. [2020-09-21 11:13:14,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-21 11:13:14,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:14,144 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 11:13:14,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:13:14,144 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:14,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:14,145 INFO L82 PathProgramCache]: Analyzing trace with hash -2139116544, now seen corresponding path program 1 times [2020-09-21 11:13:14,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:14,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282771177] [2020-09-21 11:13:14,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,190 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,190 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:13:14,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:14,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:14,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 11:13:14,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:14,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,459 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:14,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:14,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:14,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:14,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:14,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:14,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:14,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:14,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:14,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,501 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:14,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:14,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:14,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:14,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,521 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:14,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:14,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:14,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,542 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:14,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:14,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:14,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:14,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:14,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:14,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:14,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:14,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:14,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:14,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:14,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:14,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:14,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:14,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:14,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:14,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:14,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,621 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,621 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:14,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:14,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:14,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,626 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,626 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,626 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:14,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:14,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,630 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:14,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:14,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:14,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-21 11:13:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:14,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:14,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 11:13:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:14,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:14,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 11:13:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:14,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:14,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:14,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:14,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:14,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:14,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:13:14,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282771177] [2020-09-21 11:13:14,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:14,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:13:14,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206267293] [2020-09-21 11:13:14,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:13:14,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:14,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:13:14,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:14,679 INFO L87 Difference]: Start difference. First operand 1053 states and 1271 transitions. Second operand 11 states. [2020-09-21 11:13:15,582 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:15,964 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:16,278 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:16,563 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:17,949 INFO L93 Difference]: Finished difference Result 1852 states and 2311 transitions. [2020-09-21 11:13:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:13:17,950 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2020-09-21 11:13:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:17,956 INFO L225 Difference]: With dead ends: 1852 [2020-09-21 11:13:17,957 INFO L226 Difference]: Without dead ends: 691 [2020-09-21 11:13:17,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:13:17,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-09-21 11:13:18,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 632. [2020-09-21 11:13:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-09-21 11:13:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 744 transitions. [2020-09-21 11:13:18,133 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 744 transitions. Word has length 107 [2020-09-21 11:13:18,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:18,133 INFO L479 AbstractCegarLoop]: Abstraction has 632 states and 744 transitions. [2020-09-21 11:13:18,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:13:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 744 transitions. [2020-09-21 11:13:18,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:13:18,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:18,138 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] [2020-09-21 11:13:18,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:13:18,138 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:18,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:18,139 INFO L82 PathProgramCache]: Analyzing trace with hash 168705896, now seen corresponding path program 1 times [2020-09-21 11:13:18,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:18,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171703610] [2020-09-21 11:13:18,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,243 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,243 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,243 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,244 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 11:13:18,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:13:18,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-21 11:13:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:18,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,495 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:18,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,503 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:18,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:18,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,543 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,544 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,544 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:18,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:18,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:18,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:13:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:18,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:18,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:18,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:18,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,637 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,637 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:18,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:18,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:18,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,679 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:18,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:18,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,697 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,698 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 11:13:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:18,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:13:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:18,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:13:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:13:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,740 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,740 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,740 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:18,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:13:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,761 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 11:13:18,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171703610] [2020-09-21 11:13:18,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:18,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:13:18,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261444926] [2020-09-21 11:13:18,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:13:18,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:18,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:13:18,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:18,763 INFO L87 Difference]: Start difference. First operand 632 states and 744 transitions. Second operand 10 states. [2020-09-21 11:13:19,684 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:19,989 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:13:20,297 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:20,582 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:21,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:21,578 INFO L93 Difference]: Finished difference Result 1235 states and 1485 transitions. [2020-09-21 11:13:21,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:21,579 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 109 [2020-09-21 11:13:21,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:21,584 INFO L225 Difference]: With dead ends: 1235 [2020-09-21 11:13:21,584 INFO L226 Difference]: Without dead ends: 627 [2020-09-21 11:13:21,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:21,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2020-09-21 11:13:21,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 593. [2020-09-21 11:13:21,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-09-21 11:13:21,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 689 transitions. [2020-09-21 11:13:21,735 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 689 transitions. Word has length 109 [2020-09-21 11:13:21,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:21,736 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 689 transitions. [2020-09-21 11:13:21,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:13:21,736 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 689 transitions. [2020-09-21 11:13:21,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-09-21 11:13:21,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:21,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:21,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:13:21,739 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:21,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:21,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1129880655, now seen corresponding path program 1 times [2020-09-21 11:13:21,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:21,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671880268] [2020-09-21 11:13:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:21,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:21,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:21,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:21,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:21,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-21 11:13:21,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:21,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:13:21,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:21,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:13:21,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:13:21,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:13:21,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,135 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:22,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:22,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,169 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,169 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,169 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,177 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,177 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:22,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,181 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,182 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:22,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:22,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:22,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:22,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:22,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:22,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,261 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:22,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:22,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:22,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:22,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:22,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:22,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,283 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,283 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:22,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:22,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:22,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:13:22,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-21 11:13:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:22,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:22,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:22,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:22,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:13:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:22,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:22,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:13:22,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,344 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,344 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,345 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:22,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 11:13:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,353 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:22,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:22,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:22,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 11:13:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,371 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,390 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:13:22,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671880268] [2020-09-21 11:13:22,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:22,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:13:22,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118292842] [2020-09-21 11:13:22,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:13:22,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:22,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:13:22,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:22,393 INFO L87 Difference]: Start difference. First operand 593 states and 689 transitions. Second operand 12 states. [2020-09-21 11:13:22,833 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:23,519 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:24,297 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:24,642 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:24,950 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:25,259 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:25,593 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:25,891 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:26,851 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:27,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:27,842 INFO L93 Difference]: Finished difference Result 1450 states and 1810 transitions. [2020-09-21 11:13:27,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:13:27,843 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2020-09-21 11:13:27,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:27,852 INFO L225 Difference]: With dead ends: 1450 [2020-09-21 11:13:27,852 INFO L226 Difference]: Without dead ends: 782 [2020-09-21 11:13:27,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=240, Invalid=572, Unknown=0, NotChecked=0, Total=812 [2020-09-21 11:13:27,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2020-09-21 11:13:28,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 731. [2020-09-21 11:13:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-09-21 11:13:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 869 transitions. [2020-09-21 11:13:28,044 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 869 transitions. Word has length 113 [2020-09-21 11:13:28,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:28,045 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 869 transitions. [2020-09-21 11:13:28,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:13:28,045 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 869 transitions. [2020-09-21 11:13:28,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-21 11:13:28,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:28,048 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 11:13:28,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:13:28,049 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:28,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:28,049 INFO L82 PathProgramCache]: Analyzing trace with hash -127576802, now seen corresponding path program 2 times [2020-09-21 11:13:28,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:28,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543326373] [2020-09-21 11:13:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:13:28,150 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:13:28,150 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:13:28,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:13:28,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:13:28 BoogieIcfgContainer [2020-09-21 11:13:28,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:13:28,224 INFO L168 Benchmark]: Toolchain (without parser) took 38999.81 ms. Allocated memory was 139.5 MB in the beginning and 782.8 MB in the end (delta: 643.3 MB). Free memory was 101.8 MB in the beginning and 521.9 MB in the end (delta: -420.1 MB). Peak memory consumption was 223.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:28,228 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:13:28,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.11 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 166.5 MB in the end (delta: -65.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:28,231 INFO L168 Benchmark]: Boogie Preprocessor took 117.56 ms. Allocated memory is still 201.9 MB. Free memory was 166.5 MB in the beginning and 162.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:28,232 INFO L168 Benchmark]: RCFGBuilder took 1041.80 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 162.5 MB in the beginning and 193.5 MB in the end (delta: -30.9 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:28,232 INFO L168 Benchmark]: TraceAbstraction took 37067.17 ms. Allocated memory was 235.4 MB in the beginning and 782.8 MB in the end (delta: 547.4 MB). Free memory was 193.5 MB in the beginning and 521.9 MB in the end (delta: -328.4 MB). Peak memory consumption was 218.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:28,242 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 765.11 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 166.5 MB in the end (delta: -65.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.56 ms. Allocated memory is still 201.9 MB. Free memory was 166.5 MB in the beginning and 162.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1041.80 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 162.5 MB in the beginning and 193.5 MB in the end (delta: -30.9 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37067.17 ms. Allocated memory was 235.4 MB in the beginning and 782.8 MB in the end (delta: 547.4 MB). Free memory was 193.5 MB in the beginning and 521.9 MB in the end (delta: -328.4 MB). Peak memory consumption was 218.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 784]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L148] int pumpRunning = 0; [L149] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L583] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L824] int waterLevel = 1; [L825] int methaneLevelCritical = 0; [L391] int retValue_acc ; [L392] int tmp ; [L396] FCALL select_helpers() [L397] FCALL select_features() [L398] CALL, EXPR valid_product() [L815] int retValue_acc ; [L818] retValue_acc = 1 [L819] return (retValue_acc); [L398] RET, EXPR valid_product() [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) [L402] FCALL setup() [L403] CALL runTest() [L382] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L842] COND TRUE waterLevel < 2 [L843] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L155] COND FALSE !(\read(pumpRunning)) [L162] COND TRUE \read(systemActive) [L164] CALL processEnvironment() [L184] int tmp ; [L187] COND TRUE ! pumpRunning [L189] CALL, EXPR isHighWaterLevel() [L281] int retValue_acc ; [L282] int tmp ; [L283] int tmp___0 ; [L287] CALL, EXPR isHighWaterSensorDry() [L904] int retValue_acc ; [L907] COND FALSE !(waterLevel < 2) [L911] retValue_acc = 0 [L912] return (retValue_acc); [L287] RET, EXPR isHighWaterSensorDry() [L287] tmp = isHighWaterSensorDry() [L289] COND FALSE !(\read(tmp)) [L292] tmp___0 = 1 [L294] retValue_acc = tmp___0 [L295] return (retValue_acc); [L189] RET, EXPR isHighWaterLevel() [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) [L193] CALL activatePump() [L212] pumpRunning = 1 [L193] RET activatePump() [L164] RET processEnvironment() [L170] CALL __utac_acc__Specification4_spec__1() [L116] int tmp ; [L117] int tmp___0 ; [L121] CALL, EXPR getWaterLevel() [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); [L121] RET, EXPR getWaterLevel() [L121] tmp = getWaterLevel() [L123] COND FALSE !(tmp == 0) [L170] RET __utac_acc__Specification4_spec__1() [L100] RET timeShift() [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L155] COND TRUE \read(pumpRunning) [L157] CALL lowerWaterLevel() [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 [L157] RET lowerWaterLevel() [L162] COND TRUE \read(systemActive) [L164] CALL processEnvironment() [L184] int tmp ; [L187] COND FALSE !(! pumpRunning) [L202] FCALL processEnvironment__wrappee__base() [L164] RET processEnvironment() [L170] CALL __utac_acc__Specification4_spec__1() [L116] int tmp ; [L117] int tmp___0 ; [L121] CALL, EXPR getWaterLevel() [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); [L121] RET, EXPR getWaterLevel() [L121] tmp = getWaterLevel() [L123] COND FALSE !(tmp == 0) [L170] RET __utac_acc__Specification4_spec__1() [L100] RET timeShift() [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L155] COND TRUE \read(pumpRunning) [L157] CALL lowerWaterLevel() [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 [L157] RET lowerWaterLevel() [L162] COND TRUE \read(systemActive) [L164] CALL processEnvironment() [L184] int tmp ; [L187] COND FALSE !(! pumpRunning) [L202] FCALL processEnvironment__wrappee__base() [L164] RET processEnvironment() [L170] CALL __utac_acc__Specification4_spec__1() [L116] int tmp ; [L117] int tmp___0 ; [L121] CALL, EXPR getWaterLevel() [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); [L121] RET, EXPR getWaterLevel() [L121] tmp = getWaterLevel() [L123] COND TRUE tmp == 0 [L125] CALL, EXPR isPumpRunning() [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); [L125] RET, EXPR isPumpRunning() [L125] tmp___0 = isPumpRunning() [L127] COND TRUE \read(tmp___0) [L129] CALL __automaton_fail() [L784] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 28.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1061 SDtfs, 2045 SDslu, 1270 SDs, 0 SdLazy, 5566 SolverSat, 1398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 345 GetRequests, 225 SyntacticMatches, 5 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1053occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 528 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 800 NumberOfCodeBlocks, 800 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 643 ConstructedInterpolants, 0 QuantifiedInterpolants, 205420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 61/67 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...