/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:44:10,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:44:10,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:44:10,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:44:10,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:44:10,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:44:10,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:44:10,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:44:10,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:44:10,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:44:10,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:44:10,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:44:10,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:44:10,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:44:10,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:44:10,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:44:10,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:44:10,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:44:10,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:44:10,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:44:10,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:44:10,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:44:10,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:44:10,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:44:10,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:44:10,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:44:10,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:44:10,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:44:10,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:44:10,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:44:10,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:44:10,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:44:10,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:44:10,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:44:10,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:44:10,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:44:10,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:44:10,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:44:10,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:44:10,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:44:10,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:44:10,366 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 [2020-09-24 15:44:10,415 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:44:10,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:44:10,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:44:10,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:44:10,419 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:44:10,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:44:10,419 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:44:10,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:44:10,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:44:10,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:44:10,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:44:10,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:44:10,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:44:10,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:44:10,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:44:10,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:44:10,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:44:10,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:44:10,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:44:10,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:44:10,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:44:10,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:44:10,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:44:10,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:44:10,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:44:10,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:44:10,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:44:10,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:44:10,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:44:10,425 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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:44:10,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:44:10,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:44:10,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:44:10,879 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:44:10,880 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:44:10,881 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product28.cil.c [2020-09-24 15:44:10,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c7a82388/fa0a0821be014f799e8ed3059c1a1830/FLAG80291fd09 [2020-09-24 15:44:11,587 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:44:11,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product28.cil.c [2020-09-24 15:44:11,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c7a82388/fa0a0821be014f799e8ed3059c1a1830/FLAG80291fd09 [2020-09-24 15:44:11,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c7a82388/fa0a0821be014f799e8ed3059c1a1830 [2020-09-24 15:44:11,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:44:11,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:44:11,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:44:11,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:44:11,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:44:11,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:44:11" (1/1) ... [2020-09-24 15:44:11,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327c857d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:11, skipping insertion in model container [2020-09-24 15:44:11,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:44:11" (1/1) ... [2020-09-24 15:44:11,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:44:11,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:44:12,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:44:12,431 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:44:12,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:44:12,564 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:44:12,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12 WrapperNode [2020-09-24 15:44:12,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:44:12,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:44:12,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:44:12,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:44:12,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12" (1/1) ... [2020-09-24 15:44:12,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12" (1/1) ... [2020-09-24 15:44:12,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12" (1/1) ... [2020-09-24 15:44:12,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12" (1/1) ... [2020-09-24 15:44:12,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12" (1/1) ... [2020-09-24 15:44:12,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12" (1/1) ... [2020-09-24 15:44:12,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12" (1/1) ... [2020-09-24 15:44:12,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:44:12,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:44:12,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:44:12,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:44:12,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12" (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 [2020-09-24 15:44:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:44:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:44:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:44:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:44:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:44:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:44:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:44:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:44:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:44:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:44:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:44:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:44:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:44:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:44:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 15:44:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:44:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:44:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:44:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 15:44:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:44:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:44:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:44:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:44:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:44:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 15:44:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:44:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:44:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:44:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:44:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:44:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:44:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:44:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:44:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:44:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:44:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:44:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:44:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:44:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:44:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:44:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:44:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:44:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:44:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:44:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:44:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:44:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:44:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:44:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:44:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:44:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:44:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:44:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:44:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:44:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:44:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 15:44:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:44:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:44:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:44:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:44:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:44:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:44:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:44:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:44:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:44:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:44:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:44:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 15:44:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 15:44:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:44:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:44:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:44:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:44:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:44:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:44:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:44:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:44:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:44:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:44:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:44:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:44:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:44:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:44:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:44:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:44:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:44:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:44:13,944 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:44:13,944 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:44:13,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:44:13 BoogieIcfgContainer [2020-09-24 15:44:13,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:44:13,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:44:13,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:44:13,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:44:13,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:44:11" (1/3) ... [2020-09-24 15:44:13,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f78fcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:44:13, skipping insertion in model container [2020-09-24 15:44:13,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:12" (2/3) ... [2020-09-24 15:44:13,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f78fcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:44:13, skipping insertion in model container [2020-09-24 15:44:13,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:44:13" (3/3) ... [2020-09-24 15:44:13,968 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product28.cil.c [2020-09-24 15:44:13,981 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:44:13,996 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:44:14,021 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:44:14,065 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:44:14,066 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:44:14,066 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:44:14,066 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:44:14,066 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:44:14,067 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:44:14,067 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:44:14,068 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:44:14,108 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-24 15:44:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 15:44:14,144 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:14,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:44:14,146 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:14,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:14,154 INFO L82 PathProgramCache]: Analyzing trace with hash 2008725575, now seen corresponding path program 1 times [2020-09-24 15:44:14,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:14,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850347743] [2020-09-24 15:44:14,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:14,508 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:14,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:14,508 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:14,509 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:14,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:44:14,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:14,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:44:14,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 15:44:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:14,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:15,011 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:15,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:15,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:15,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:15,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:15,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:15,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:15,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:15,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:15,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:15,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:15,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:15,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:15,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:15,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:15,139 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:15,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:15,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:15,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:15,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:15,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:15,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:15,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:15,146 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:15,146 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:15,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:15,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:15,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:15,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:15,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:15,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:15,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:15,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:15,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:15,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:15,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:15,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:15,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:15,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:15,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:15,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:15,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:15,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:15,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:15,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:15,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:15,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:15,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:15,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:15,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:15,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:15,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:15,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:15,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:15,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:15,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:15,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:15,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:15,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:15,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:15,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:15,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:15,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:15,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:15,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:15,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:15,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:15,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:44:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:15,195 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:15,195 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:15,195 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:15,196 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:15,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:15,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:15,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:44:15,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:15,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:15,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:15,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:15,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:44:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:15,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:15,211 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:15,211 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:15,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:15,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:15,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:15,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:15,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:15,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:15,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:44:15,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850347743] [2020-09-24 15:44:15,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:15,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:44:15,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080541442] [2020-09-24 15:44:15,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:44:15,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:15,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:44:15,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:44:15,282 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 4 states. [2020-09-24 15:44:16,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:16,534 INFO L93 Difference]: Finished difference Result 451 states and 537 transitions. [2020-09-24 15:44:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 15:44:16,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 15:44:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:16,556 INFO L225 Difference]: With dead ends: 451 [2020-09-24 15:44:16,557 INFO L226 Difference]: Without dead ends: 293 [2020-09-24 15:44:16,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:44:16,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-24 15:44:16,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 243. [2020-09-24 15:44:16,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-24 15:44:16,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 263 transitions. [2020-09-24 15:44:16,668 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 263 transitions. Word has length 148 [2020-09-24 15:44:16,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:16,669 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 263 transitions. [2020-09-24 15:44:16,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:44:16,670 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 263 transitions. [2020-09-24 15:44:16,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 15:44:16,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:16,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:44:16,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:44:16,675 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:16,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:16,675 INFO L82 PathProgramCache]: Analyzing trace with hash -963794546, now seen corresponding path program 1 times [2020-09-24 15:44:16,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:16,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155673159] [2020-09-24 15:44:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:16,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:16,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:16,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:16,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:16,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 15:44:16,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:16,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:44:16,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:16,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:16,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 15:44:16,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:44:16,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:17,169 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:17,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:17,183 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:17,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:17,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:17,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:17,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:17,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:17,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:17,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:17,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:17,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:17,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:17,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:17,292 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:17,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:17,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:17,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:17,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:17,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:17,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:17,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:17,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:17,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:17,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:17,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:17,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:17,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:17,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:17,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:17,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:17,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:17,301 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:17,301 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:17,301 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:17,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:17,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:17,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:17,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:17,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:17,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:17,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:17,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:17,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:17,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:17,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:17,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:17,307 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:17,307 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:17,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:17,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:17,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:17,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:17,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:17,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:17,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:17,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:17,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:17,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:17,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:17,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:17,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:17,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:17,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:17,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:17,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 15:44:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:17,324 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:17,325 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:17,325 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:17,325 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:17,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:17,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:17,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:17,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:17,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:17,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:44:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:17,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:17,331 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:17,331 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:17,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:17,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:17,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:17,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:17,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:17,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:17,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:17,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:17,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:44:17,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155673159] [2020-09-24 15:44:17,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:17,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:44:17,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094168021] [2020-09-24 15:44:17,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:44:17,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:17,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:44:17,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:44:17,367 INFO L87 Difference]: Start difference. First operand 243 states and 263 transitions. Second operand 5 states. [2020-09-24 15:44:18,051 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:19,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:19,041 INFO L93 Difference]: Finished difference Result 370 states and 420 transitions. [2020-09-24 15:44:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:44:19,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 15:44:19,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:19,047 INFO L225 Difference]: With dead ends: 370 [2020-09-24 15:44:19,047 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 15:44:19,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:44:19,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 15:44:19,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 233. [2020-09-24 15:44:19,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-24 15:44:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 250 transitions. [2020-09-24 15:44:19,098 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 250 transitions. Word has length 149 [2020-09-24 15:44:19,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:19,099 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 250 transitions. [2020-09-24 15:44:19,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:44:19,100 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 250 transitions. [2020-09-24 15:44:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 15:44:19,102 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:19,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:44:19,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:44:19,103 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:19,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:19,104 INFO L82 PathProgramCache]: Analyzing trace with hash 886671675, now seen corresponding path program 1 times [2020-09-24 15:44:19,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:19,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880617941] [2020-09-24 15:44:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:44:19,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -48 [2020-09-24 15:44:19,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 48 [2020-09-24 15:44:19,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 15:44:19,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:44:19,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:19,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 15:44:19,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:44:19,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,530 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,542 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:19,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:19,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:19,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:19,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:19,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:19,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:19,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:19,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,582 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:19,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:19,583 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:19,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:19,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:19,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:19,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:19,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:19,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:19,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:19,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:19,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:19,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,592 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:19,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:19,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:19,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:19,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:19,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:19,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:19,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:19,597 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:19,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:19,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:19,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:19,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:19,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:19,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:19,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:19,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:19,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:19,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:44:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:19,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:19,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:19,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:19,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:19,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:44:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:44:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:19,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:19,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:19,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:19,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:19,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:19,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:19,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:19,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:44:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:19,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:19,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:19,640 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:19,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:19,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:19,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:19,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:19,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:19,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:19,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:19,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:44:19,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880617941] [2020-09-24 15:44:19,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:19,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:44:19,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721317203] [2020-09-24 15:44:19,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:44:19,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:19,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:44:19,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:44:19,675 INFO L87 Difference]: Start difference. First operand 233 states and 250 transitions. Second operand 6 states. [2020-09-24 15:44:20,388 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:22,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:22,380 INFO L93 Difference]: Finished difference Result 549 states and 644 transitions. [2020-09-24 15:44:22,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:44:22,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 15:44:22,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:22,385 INFO L225 Difference]: With dead ends: 549 [2020-09-24 15:44:22,385 INFO L226 Difference]: Without dead ends: 431 [2020-09-24 15:44:22,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:44:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-09-24 15:44:22,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 341. [2020-09-24 15:44:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-24 15:44:22,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 376 transitions. [2020-09-24 15:44:22,451 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 376 transitions. Word has length 162 [2020-09-24 15:44:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:22,452 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 376 transitions. [2020-09-24 15:44:22,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:44:22,452 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 376 transitions. [2020-09-24 15:44:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 15:44:22,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:22,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:44:22,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:44:22,455 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:22,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1756833962, now seen corresponding path program 1 times [2020-09-24 15:44:22,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:22,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259092625] [2020-09-24 15:44:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:22,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:22,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:22,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:22,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:22,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 15:44:22,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:22,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:44:22,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:22,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:44:22,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:44:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:44:22,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:22,954 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:22,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,002 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,003 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,003 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,003 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:23,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:23,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:23,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:44:23,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,069 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,069 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,070 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:23,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:23,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:23,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:23,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:23,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,077 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:23,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:23,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:23,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:23,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:23,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:23,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:23,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:23,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:23,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:23,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:23,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,120 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,120 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,121 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:23,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:23,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:23,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:44:23,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:23,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 15:44:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,145 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,146 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,146 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:23,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:23,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:23,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:44:23,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:23,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:44:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,203 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:23,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:44:23,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:44:23,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:23,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:44:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,261 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:23,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:23,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:23,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:23,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:44:23,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259092625] [2020-09-24 15:44:23,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:23,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:44:23,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897435514] [2020-09-24 15:44:23,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:44:23,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:23,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:44:23,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:44:23,320 INFO L87 Difference]: Start difference. First operand 341 states and 376 transitions. Second operand 10 states. [2020-09-24 15:44:23,834 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:25,392 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:25,756 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:44:26,158 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:26,507 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:26,851 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:44:27,168 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:27,500 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:27,999 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:29,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:29,210 INFO L93 Difference]: Finished difference Result 914 states and 1114 transitions. [2020-09-24 15:44:29,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:44:29,211 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-24 15:44:29,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:29,218 INFO L225 Difference]: With dead ends: 914 [2020-09-24 15:44:29,219 INFO L226 Difference]: Without dead ends: 688 [2020-09-24 15:44:29,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:44:29,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-09-24 15:44:29,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 534. [2020-09-24 15:44:29,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-09-24 15:44:29,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 599 transitions. [2020-09-24 15:44:29,337 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 599 transitions. Word has length 167 [2020-09-24 15:44:29,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:29,338 INFO L479 AbstractCegarLoop]: Abstraction has 534 states and 599 transitions. [2020-09-24 15:44:29,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:44:29,338 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 599 transitions. [2020-09-24 15:44:29,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 15:44:29,341 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:29,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:44:29,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:44:29,342 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:29,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:29,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1720162285, now seen corresponding path program 1 times [2020-09-24 15:44:29,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:29,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528450207] [2020-09-24 15:44:29,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-24 15:44:29,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 15:44:29,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:44:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 15:44:29,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:44:29,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,755 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:29,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:29,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:29,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:44:29,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:29,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:29,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:29,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:29,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,842 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,843 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,843 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:29,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:29,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:29,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:29,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:29,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:29,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:29,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:29,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:29,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:29,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:29,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:29,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:44:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:44:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:29,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:29,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:44:29,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 15:44:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:29,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:29,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:44:29,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:44:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:29,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:29,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:29,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 15:44:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:29,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:29,926 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:29,926 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:29,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:29,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:29,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:44:29,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:44:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:44:29,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528450207] [2020-09-24 15:44:29,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:29,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:44:29,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709738642] [2020-09-24 15:44:29,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:44:29,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:29,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:44:29,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:44:29,994 INFO L87 Difference]: Start difference. First operand 534 states and 599 transitions. Second operand 11 states. [2020-09-24 15:44:30,793 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:32,193 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:32,526 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:32,873 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:33,272 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:33,584 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:34,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:34,147 INFO L93 Difference]: Finished difference Result 986 states and 1205 transitions. [2020-09-24 15:44:34,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 15:44:34,148 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2020-09-24 15:44:34,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:34,149 INFO L225 Difference]: With dead ends: 986 [2020-09-24 15:44:34,149 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:44:34,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2020-09-24 15:44:34,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:44:34,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:44:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:44:34,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:44:34,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 172 [2020-09-24 15:44:34,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:34,154 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:44:34,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:44:34,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:44:34,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:44:34,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:44:34,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:44:34,378 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:34,570 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:34,733 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:34,907 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:35,083 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:35,262 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:35,423 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:35,598 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:35,757 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:35,928 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:36,528 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 6 [2020-09-24 15:44:36,855 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:37,169 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:37,493 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:37,804 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:38,101 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:44:38,424 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:38,740 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-24 15:44:39,033 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:44:39,326 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 15:44:39,488 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:39,641 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:39,828 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:39,978 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:40,141 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:40,299 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:40,452 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:40,605 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:40,765 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:40,940 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:41,090 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:41,252 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:41,414 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:41,576 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:41,741 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:41,904 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:42,063 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:42,216 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:42,369 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:42,533 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:42,688 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:42,838 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:42,987 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:43,144 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:43,307 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:43,470 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:43,632 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:43,794 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:43,957 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:44,114 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:44,268 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:44,422 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:44,583 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:44,758 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:45,078 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 6 [2020-09-24 15:44:45,557 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 6 [2020-09-24 15:44:45,713 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:45,872 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:46,034 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:46,197 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:46,360 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:46,522 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:46,684 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:46,842 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:46,997 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:47,151 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:47,447 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 6 [2020-09-24 15:44:47,734 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-24 15:44:48,019 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 195 [2020-09-24 15:44:48,386 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 192 [2020-09-24 15:44:48,679 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:44:48,969 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:44:49,335 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 192 [2020-09-24 15:44:49,620 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 195 [2020-09-24 15:44:49,903 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2020-09-24 15:44:50,185 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 195 [2020-09-24 15:44:50,472 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 195 [2020-09-24 15:44:50,785 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 195 [2020-09-24 15:44:51,093 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 195 [2020-09-24 15:44:51,377 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 195 [2020-09-24 15:44:51,744 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 192 [2020-09-24 15:44:52,055 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:44:52,346 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2020-09-24 15:44:52,517 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:52,679 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:52,847 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:53,012 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:53,174 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:53,331 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:53,480 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:53,790 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 6 [2020-09-24 15:44:53,944 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:54,108 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:54,256 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:54,413 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:54,572 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:54,720 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:54,876 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:55,038 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:55,212 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:55,389 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:55,670 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 6 [2020-09-24 15:44:55,834 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:55,997 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:56,159 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:56,321 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:56,483 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:56,641 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:56,789 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:56,951 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:57,109 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:57,261 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:57,415 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:57,567 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:57,912 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 189 [2020-09-24 15:44:58,289 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 195 [2020-09-24 15:44:58,654 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:58,942 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-24 15:44:59,230 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-24 15:44:59,597 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:44:59,974 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 195 [2020-09-24 15:45:00,317 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 189 [2020-09-24 15:45:00,694 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 195 [2020-09-24 15:45:01,069 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 195 [2020-09-24 15:45:01,456 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 195 [2020-09-24 15:45:01,833 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 195 [2020-09-24 15:45:02,210 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 195 [2020-09-24 15:45:02,577 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 192 [2020-09-24 15:45:02,867 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-24 15:45:03,158 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 191 [2020-09-24 15:45:03,312 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:03,461 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:03,618 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:03,790 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:45:03,943 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:04,091 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:45:04,248 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:45:04,412 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:45:04,841 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 7 [2020-09-24 15:45:05,073 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:45:05,289 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1 [2020-09-24 15:45:05,793 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 8 [2020-09-24 15:45:06,044 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:45:06,361 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:45:06,607 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:45:07,021 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 14 [2020-09-24 15:45:07,236 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-24 15:45:07,642 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 8 [2020-09-24 15:45:08,119 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 8 [2020-09-24 15:45:08,579 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 14 [2020-09-24 15:45:08,775 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:45:09,032 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:45:09,264 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:45:09,493 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 17 [2020-09-24 15:45:09,726 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:45:10,143 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 15 [2020-09-24 15:45:10,574 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 7 [2020-09-24 15:45:10,786 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1 [2020-09-24 15:45:11,077 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-09-24 15:45:11,509 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 11 [2020-09-24 15:45:11,942 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 14 [2020-09-24 15:45:12,346 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 8