/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:54:36,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:54:36,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:54:36,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:54:36,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:54:36,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:54:36,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:54:36,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:54:36,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:54:36,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:54:36,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:54:36,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:54:36,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:54:36,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:54:36,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:54:36,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:54:36,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:54:36,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:54:36,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:54:36,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:54:36,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:54:36,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:54:36,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:54:36,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:54:36,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:54:36,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:54:36,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:54:36,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:54:36,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:54:36,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:54:36,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:54:36,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:54:36,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:54:36,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:54:36,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:54:36,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:54:36,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:54:36,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:54:36,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:54:36,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:54:36,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:54:36,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:54:36,403 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:54:36,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:54:36,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:54:36,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:54:36,407 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:54:36,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:54:36,408 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:54:36,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:54:36,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:54:36,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:54:36,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:54:36,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:54:36,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:54:36,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:54:36,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:54:36,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:54:36,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:54:36,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:54:36,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:54:36,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:54:36,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:54:36,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:54:36,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:54:36,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:54:36,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:54:36,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:54:36,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:54:36,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:54:36,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:54:36,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:54:36,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:54:36,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:54:36,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:54:36,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:54:36,861 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:54:36,862 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 02:54:36,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6df579eb/78f85fcbfccb41269d2c7bd0c8e32c6d/FLAGbd077df67 [2020-09-25 02:54:37,579 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:54:37,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 02:54:37,611 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6df579eb/78f85fcbfccb41269d2c7bd0c8e32c6d/FLAGbd077df67 [2020-09-25 02:54:37,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6df579eb/78f85fcbfccb41269d2c7bd0c8e32c6d [2020-09-25 02:54:37,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:54:37,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:54:37,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:37,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:54:37,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:54:37,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:37" (1/1) ... [2020-09-25 02:54:37,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:37, skipping insertion in model container [2020-09-25 02:54:37,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:37" (1/1) ... [2020-09-25 02:54:37,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:54:37,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:54:38,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:38,507 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:54:38,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:38,655 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:54:38,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38 WrapperNode [2020-09-25 02:54:38,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:38,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:54:38,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:54:38,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:54:38,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38" (1/1) ... [2020-09-25 02:54:38,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38" (1/1) ... [2020-09-25 02:54:38,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38" (1/1) ... [2020-09-25 02:54:38,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38" (1/1) ... [2020-09-25 02:54:38,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38" (1/1) ... [2020-09-25 02:54:38,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38" (1/1) ... [2020-09-25 02:54:38,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38" (1/1) ... [2020-09-25 02:54:38,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:54:38,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:54:38,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:54:38,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:54:38,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:54:38,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:54:38,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:54:38,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:38,845 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:54:38,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:54:38,846 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:38,846 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 02:54:38,846 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:54:38,846 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 02:54:38,846 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:54:38,846 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:54:38,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:54:38,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:54:38,847 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:54:38,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:54:38,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:54:38,848 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:54:38,848 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:54:38,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:54:38,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:54:38,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:54:38,849 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:54:38,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:38,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:38,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:54:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:54:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:54:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:54:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:54:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:54:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:54:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:54:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:54:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:54:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:54:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:54:38,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:54:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:54:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:54:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:54:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:38,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:54:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:54:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:54:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:54:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:54:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:54:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:54:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:54:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:54:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:54:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:54:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:54:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:54:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:54:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:54:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:54:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:54:38,856 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:54:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:54:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 02:54:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:54:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 02:54:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:54:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:54:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:54:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:54:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:54:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:54:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:54:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:54:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:54:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:54:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:54:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:54:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:54:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:54:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:54:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:54:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:54:38,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:54:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:54:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:54:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:54:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:54:38,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:54:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:54:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:54:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:54:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:54:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:54:38,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:54:38,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:54:40,039 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:54:40,039 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:54:40,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:40 BoogieIcfgContainer [2020-09-25 02:54:40,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:54:40,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:54:40,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:54:40,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:54:40,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:54:37" (1/3) ... [2020-09-25 02:54:40,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1039ff63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:40, skipping insertion in model container [2020-09-25 02:54:40,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:38" (2/3) ... [2020-09-25 02:54:40,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1039ff63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:40, skipping insertion in model container [2020-09-25 02:54:40,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:40" (3/3) ... [2020-09-25 02:54:40,056 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2020-09-25 02:54:40,068 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:54:40,079 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:54:40,102 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:54:40,135 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:54:40,135 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:54:40,135 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:54:40,136 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:54:40,136 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:54:40,136 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:54:40,136 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:54:40,136 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:54:40,166 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-25 02:54:40,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:54:40,184 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:40,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:40,186 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:40,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:40,194 INFO L82 PathProgramCache]: Analyzing trace with hash 978294910, now seen corresponding path program 1 times [2020-09-25 02:54:40,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:40,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808053028] [2020-09-25 02:54:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:40,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:40,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:42,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:43,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:44,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:45,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:45,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:54:45,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:54:45,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:54:45,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:45,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:54:45,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 02:54:45,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 02:54:45,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:54:46,154 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:46,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:46,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:46,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:46,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:46,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-09-25 02:54:46,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 02:54:46,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:46,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:46,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:46,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:46,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:46,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:46,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:46,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:46,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:46,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:46,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:46,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:46,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:46,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:46,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:46,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:46,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:46,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:46,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:46,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:46,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:46,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:54:46,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:46,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:46,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:46,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:46,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:46,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:46,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:46,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:46,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:46,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:46,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:46,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:46,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:46,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:46,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:46,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:46,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:46,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:46,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:46,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:46,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:46,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:46,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:46,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:46,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:54:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:46,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:46,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:46,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:46,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:46,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:54:46,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:46,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:46,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:54:46,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808053028] [2020-09-25 02:54:46,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:46,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:54:46,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101154790] [2020-09-25 02:54:46,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:54:46,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:46,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:54:46,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:54:46,795 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 8 states. [2020-09-25 02:54:47,401 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:48,580 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:48,935 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:49,289 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:49,655 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:49,981 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:51,106 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:51,435 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:51,849 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:53,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:53,278 INFO L93 Difference]: Finished difference Result 689 states and 854 transitions. [2020-09-25 02:54:53,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:54:53,280 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:54:53,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:53,304 INFO L225 Difference]: With dead ends: 689 [2020-09-25 02:54:53,304 INFO L226 Difference]: Without dead ends: 455 [2020-09-25 02:54:53,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:54:53,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-09-25 02:54:53,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 412. [2020-09-25 02:54:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-25 02:54:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 472 transitions. [2020-09-25 02:54:53,456 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 472 transitions. Word has length 142 [2020-09-25 02:54:53,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:53,457 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 472 transitions. [2020-09-25 02:54:53,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:54:53,457 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 472 transitions. [2020-09-25 02:54:53,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-25 02:54:53,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:53,464 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:53,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:54:53,464 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:53,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:53,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1773438588, now seen corresponding path program 1 times [2020-09-25 02:54:53,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:53,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30715514] [2020-09-25 02:54:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:53,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:58,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:58,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-25 02:54:58,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:54:58,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 02:54:58,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:54:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 02:54:58,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-25 02:54:58,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:58,874 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:58,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:59,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 02:54:59,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:54:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:59,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:59,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:59,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:59,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:59,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:59,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:54:59,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:59,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:59,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:59,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 02:54:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:59,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:59,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:59,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:54:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:55:00,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:55:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 979 [2020-09-25 02:55:00,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:55:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 02:55:00,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:00,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 02:55:00,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:55:00,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-25 02:55:00,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:55:00,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:55:00,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:55:00,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:00,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 02:55:00,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:00,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 02:55:00,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:55:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:55:00,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:55:00,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:00,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:55:00,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:00,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 02:55:00,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:55:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:55:00,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:00,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:55:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:55:00,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:00,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:55:00,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:00,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:00,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:55:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 02:55:00,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:00,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:55:00,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 02:55:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:00,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:00,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:55:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:55:00,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:00,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:55:00,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:00,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:00,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:00,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:00,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:55:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:00,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:55:00,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:00,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:00,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 02:55:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:55:00,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:00,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:55:00,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:00,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 02:55:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:00,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:00,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:55:00,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:55:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:55:00,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:55:00,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-25 02:55:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:00,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:00,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:00,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:00,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:55:00,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:55:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:00,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 02:55:00,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [30715514] [2020-09-25 02:55:00,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:55:00,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 02:55:00,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594611156] [2020-09-25 02:55:00,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 02:55:00,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:55:00,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 02:55:00,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:55:00,943 INFO L87 Difference]: Start difference. First operand 412 states and 472 transitions. Second operand 15 states. [2020-09-25 02:55:01,468 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:55:02,936 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 02:55:03,644 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 02:55:04,066 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:04,474 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:04,808 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:05,493 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:05,875 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:55:06,184 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:06,519 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:06,890 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:55:07,253 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:07,613 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:55:07,929 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:08,282 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:09,097 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:55:09,424 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:55:09,713 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:55:10,103 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:55:10,435 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:55:10,741 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:55:13,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:55:13,747 INFO L93 Difference]: Finished difference Result 1288 states and 1750 transitions. [2020-09-25 02:55:13,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 02:55:13,748 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 221 [2020-09-25 02:55:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:55:13,759 INFO L225 Difference]: With dead ends: 1288 [2020-09-25 02:55:13,759 INFO L226 Difference]: Without dead ends: 937 [2020-09-25 02:55:13,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=305, Invalid=1335, Unknown=0, NotChecked=0, Total=1640 [2020-09-25 02:55:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2020-09-25 02:55:13,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 683. [2020-09-25 02:55:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2020-09-25 02:55:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 787 transitions. [2020-09-25 02:55:13,899 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 787 transitions. Word has length 221 [2020-09-25 02:55:13,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:55:13,900 INFO L479 AbstractCegarLoop]: Abstraction has 683 states and 787 transitions. [2020-09-25 02:55:13,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 02:55:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 787 transitions. [2020-09-25 02:55:13,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 02:55:13,905 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:55:13,906 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:55:13,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:55:13,906 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:55:13,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:55:13,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1739088498, now seen corresponding path program 1 times [2020-09-25 02:55:13,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:55:13,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514216886] [2020-09-25 02:55:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:55:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:14,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:14,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:17,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:18,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:18,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-25 02:55:18,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:55:18,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 02:55:18,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:55:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 02:55:18,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 02:55:18,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:19,351 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:55:19,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:55:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:19,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:19,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:19,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:55:19,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:19,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 02:55:19,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:19,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:19,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:55:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:19,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:19,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:19,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:55:19,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:19,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:55:19,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:19,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:19,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:19,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:19,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:55:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:19,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:19,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:19,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:55:19,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:55:19,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:19,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:19,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:19,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:55:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:19,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:19,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:19,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:19,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:19,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:55:19,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:19,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:19,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:19,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:55:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:19,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:19,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:19,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:55:19,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:55:19,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:19,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:19,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:19,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:19,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:19,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:55:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:19,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:19,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:19,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:55:19,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:19,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:55:19,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:19,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:55:19,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:19,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:55:19,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:19,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:55:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:19,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:19,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:19,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:55:19,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:55:19,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:55:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:55:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 02:55:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:19,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:19,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:20,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:20,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:55:20,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:55:20,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-09-25 02:55:20,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:55:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 02:55:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 02:55:20,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:20,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:20,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:20,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:20,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:20,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 02:55:20,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:55:20,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 746 [2020-09-25 02:55:20,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:20,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:55:20,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:20,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 02:55:20,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:20,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:20,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:20,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:21,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:21,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 02:55:21,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:55:21,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 674 [2020-09-25 02:55:21,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:55:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:21,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 02:55:21,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:21,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:21,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:21,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:21,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:21,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:55:21,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:55:21,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 02:55:21,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:21,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:55:21,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:55:21,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:55:21,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:21,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:55:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:21,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:21,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:21,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:55:21,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:21,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:55:21,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:21,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:55:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:21,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:55:21,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:21,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:55:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:21,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:21,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:21,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 02:55:21,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:21,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 02:55:21,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:55:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:55:21,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:21,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:55:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:21,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:21,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:21,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:55:21,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:21,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:55:21,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:55:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:21,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 02:55:21,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:21,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:55:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:21,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:21,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:21,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:21,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:21,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:55:21,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:21,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:55:21,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:21,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:55:21,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:22,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 02:55:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:22,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:22,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:22,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:55:22,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:22,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:55:22,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:22,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:55:22,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:22,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:55:22,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:22,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 02:55:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:22,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:22,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:22,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:22,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:22,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:55:22,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:22,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:22,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:55:22,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:22,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:22,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 02:55:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:22,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:22,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:22,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:22,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:22,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:55:22,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:22,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:22,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:55:22,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:22,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 02:55:22,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514216886] [2020-09-25 02:55:22,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:55:22,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 02:55:22,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367911487] [2020-09-25 02:55:22,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 02:55:22,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:55:22,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 02:55:22,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-09-25 02:55:22,084 INFO L87 Difference]: Start difference. First operand 683 states and 787 transitions. Second operand 20 states. [2020-09-25 02:55:22,685 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:55:23,918 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:55:24,529 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:24,897 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:25,407 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:25,760 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:26,291 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:55:26,684 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:55:27,094 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:55:27,531 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:55:27,856 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:28,242 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:55:28,588 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190