/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:37:52,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:37:52,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:37:52,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:37:52,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:37:52,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:37:52,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:37:52,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:37:52,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:37:52,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:37:52,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:37:52,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:37:52,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:37:52,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:37:52,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:37:52,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:37:52,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:37:52,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:37:52,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:37:52,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:37:52,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:37:52,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:37:52,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:37:52,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:37:52,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:37:52,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:37:52,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:37:52,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:37:52,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:37:52,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:37:52,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:37:52,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:37:52,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:37:52,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:37:52,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:37:52,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:37:52,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:37:52,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:37:52,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:37:52,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:37:52,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:37:52,366 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 23:37:52,410 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:37:52,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:37:52,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:37:52,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:37:52,414 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:37:52,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:37:52,414 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:37:52,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:37:52,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:37:52,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:37:52,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:37:52,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:37:52,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:37:52,416 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:37:52,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:37:52,417 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:37:52,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:37:52,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:37:52,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:37:52,418 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:37:52,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:37:52,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:37:52,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:37:52,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:37:52,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:37:52,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:37:52,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:37:52,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:37:52,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:37:52,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:37:52,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:37:52,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:37:52,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:37:52,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:37:52,894 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:37:52,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-09-24 23:37:52,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02bae11e3/dbd54157617b4c82b705e806661fbf1e/FLAG4d89b783e [2020-09-24 23:37:53,625 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:37:53,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product23.cil.c [2020-09-24 23:37:53,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02bae11e3/dbd54157617b4c82b705e806661fbf1e/FLAG4d89b783e [2020-09-24 23:37:53,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02bae11e3/dbd54157617b4c82b705e806661fbf1e [2020-09-24 23:37:53,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:37:53,913 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:37:53,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:37:53,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:37:53,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:37:53,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:37:53" (1/1) ... [2020-09-24 23:37:53,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:53, skipping insertion in model container [2020-09-24 23:37:53,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:37:53" (1/1) ... [2020-09-24 23:37:53,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:37:53,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:37:54,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:37:54,585 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:37:54,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:37:54,755 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:37:54,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54 WrapperNode [2020-09-24 23:37:54,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:37:54,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:37:54,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:37:54,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:37:54,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54" (1/1) ... [2020-09-24 23:37:54,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54" (1/1) ... [2020-09-24 23:37:54,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54" (1/1) ... [2020-09-24 23:37:54,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54" (1/1) ... [2020-09-24 23:37:54,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54" (1/1) ... [2020-09-24 23:37:54,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54" (1/1) ... [2020-09-24 23:37:54,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54" (1/1) ... [2020-09-24 23:37:54,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:37:54,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:37:54,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:37:54,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:37:54,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54" (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 23:37:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:37:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:37:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:37:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:37:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:37:54,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:37:54,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:37:54,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:37:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:37:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:37:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:37:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:37:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:37:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:37:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:37:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:37:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:37:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:37:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:37:54,936 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:37:54,937 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:37:54,937 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:37:54,938 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:37:54,938 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:37:54,939 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:37:54,940 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:37:54,940 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:37:54,941 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:37:54,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:37:54,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:37:54,942 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:37:54,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:37:54,942 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:37:54,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:37:54,942 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:37:54,942 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:37:54,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:37:54,942 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:37:54,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:37:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:37:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:37:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:37:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:37:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:37:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:37:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:37:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:37:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:37:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:37:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:37:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:37:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:37:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:37:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:37:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:37:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:37:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:37:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:37:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:37:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:37:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:37:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:37:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:37:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:37:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:37:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:37:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:37:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:37:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:37:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:37:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:37:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:37:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:37:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:37:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:37:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:37:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:37:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:37:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:37:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:37:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:37:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:37:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:37:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:37:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:37:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:37:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:37:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:37:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:37:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:37:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:37:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:37:56,181 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:37:56,181 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:37:56,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:37:56 BoogieIcfgContainer [2020-09-24 23:37:56,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:37:56,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:37:56,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:37:56,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:37:56,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:37:53" (1/3) ... [2020-09-24 23:37:56,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65242462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:37:56, skipping insertion in model container [2020-09-24 23:37:56,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:37:54" (2/3) ... [2020-09-24 23:37:56,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65242462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:37:56, skipping insertion in model container [2020-09-24 23:37:56,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:37:56" (3/3) ... [2020-09-24 23:37:56,202 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2020-09-24 23:37:56,215 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:37:56,229 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:37:56,254 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:37:56,302 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:37:56,302 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:37:56,303 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:37:56,303 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:37:56,303 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:37:56,303 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:37:56,303 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:37:56,304 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:37:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-24 23:37:56,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:37:56,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:37:56,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:37:56,380 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:37:56,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:37:56,390 INFO L82 PathProgramCache]: Analyzing trace with hash 511028723, now seen corresponding path program 1 times [2020-09-24 23:37:56,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:37:56,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754496633] [2020-09-24 23:37:56,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:37:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:37:57,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:57,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:58,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:37:59,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:01,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:01,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:38:01,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:38:01,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-24 23:38:01,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:01,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:38:01,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:38:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 23:38:01,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:38:02,428 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:02,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:02,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:02,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:02,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:02,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:02,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-24 23:38:02,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:38:02,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:02,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:02,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:02,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:02,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:02,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:38:02,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:02,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:02,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:02,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:02,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:02,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:02,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:02,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:02,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:02,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:02,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:02,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:02,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:02,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:02,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:02,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:02,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:38:02,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:02,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:02,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:02,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:02,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:02,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:02,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:02,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:02,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:38:02,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:02,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:02,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:38:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:02,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:02,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:02,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:02,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:02,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:38:02,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:38:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:02,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:03,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:38:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:03,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:03,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:03,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:03,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:03,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:03,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:03,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:03,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:03,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:03,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 23:38:03,055 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 23:38:03,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754496633] [2020-09-24 23:38:03,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:38:03,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:38:03,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599276343] [2020-09-24 23:38:03,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:38:03,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:03,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:38:03,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:38:03,094 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 8 states. [2020-09-24 23:38:03,747 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:04,819 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:05,142 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:05,515 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:05,970 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:06,273 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:06,595 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:06,914 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:09,064 INFO L93 Difference]: Finished difference Result 635 states and 783 transitions. [2020-09-24 23:38:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:38:09,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:38:09,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:09,108 INFO L225 Difference]: With dead ends: 635 [2020-09-24 23:38:09,109 INFO L226 Difference]: Without dead ends: 440 [2020-09-24 23:38:09,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:38:09,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-09-24 23:38:09,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 394. [2020-09-24 23:38:09,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-24 23:38:09,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 449 transitions. [2020-09-24 23:38:09,270 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 449 transitions. Word has length 142 [2020-09-24 23:38:09,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:09,271 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 449 transitions. [2020-09-24 23:38:09,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:38:09,271 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 449 transitions. [2020-09-24 23:38:09,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:38:09,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:09,283 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 23:38:09,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:38:09,285 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:09,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:09,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1989410950, now seen corresponding path program 1 times [2020-09-24 23:38:09,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:09,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32425296] [2020-09-24 23:38:09,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:09,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:09,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:10,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:14,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:14,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:38:14,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:38:14,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:38:14,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:38:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:38:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:38:14,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:14,729 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:14,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:14,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:15,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:15,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:15,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:15,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 23:38:15,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:15,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:15,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:38:15,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:15,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:15,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:15,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:15,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:15,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:15,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:15,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:15,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:15,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:15,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:15,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:15,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:15,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:15,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:15,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:15,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:15,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:15,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:15,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:15,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:15,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:15,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:15,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:38:15,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:15,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:15,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:15,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:15,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:15,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:15,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:15,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:15,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:15,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:15,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:15,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:15,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 23:38:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:15,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:15,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:15,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:38:15,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:15,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:38:15,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:15,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:15,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:38:15,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:15,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:15,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 23:38:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:15,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:15,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:15,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:15,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:15,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:15,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:15,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:38:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:15,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:15,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:15,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:15,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:15,180 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 23:38:15,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32425296] [2020-09-24 23:38:15,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:38:15,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:38:15,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557294820] [2020-09-24 23:38:15,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:38:15,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:15,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:38:15,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:38:15,189 INFO L87 Difference]: Start difference. First operand 394 states and 449 transitions. Second operand 5 states. [2020-09-24 23:38:15,789 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:38:16,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:16,478 INFO L93 Difference]: Finished difference Result 583 states and 699 transitions. [2020-09-24 23:38:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:38:16,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 23:38:16,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:16,485 INFO L225 Difference]: With dead ends: 583 [2020-09-24 23:38:16,485 INFO L226 Difference]: Without dead ends: 288 [2020-09-24 23:38:16,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:38:16,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-24 23:38:16,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 266. [2020-09-24 23:38:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-24 23:38:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 284 transitions. [2020-09-24 23:38:16,526 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 284 transitions. Word has length 148 [2020-09-24 23:38:16,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:16,527 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 284 transitions. [2020-09-24 23:38:16,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:38:16,528 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 284 transitions. [2020-09-24 23:38:16,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 23:38:16,529 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:16,530 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] [2020-09-24 23:38:16,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:38:16,530 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:16,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:16,531 INFO L82 PathProgramCache]: Analyzing trace with hash -983133155, now seen corresponding path program 1 times [2020-09-24 23:38:16,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:16,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302474997] [2020-09-24 23:38:16,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:16,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:17,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:17,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:21,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:21,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:21,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 23:38:21,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:38:21,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 23:38:21,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:21,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:38:21,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:38:21,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 23:38:21,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:21,958 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:21,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:22,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:22,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:22,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:22,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:22,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 23:38:22,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:22,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:22,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:38:22,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:22,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:22,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:22,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:22,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:22,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:22,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:38:22,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:22,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:22,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:22,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:22,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:22,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:22,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:22,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:22,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:22,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:22,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:22,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:22,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:22,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:22,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:22,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:22,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:38:22,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:22,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:22,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:22,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:22,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:22,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:22,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:22,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:22,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:22,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:22,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:22,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:22,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:22,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:22,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:22,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:22,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 23:38:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:22,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:22,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:22,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:38:22,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:22,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:38:22,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:22,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:38:22,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:38:22,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:38:22,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:22,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:38:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:22,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:22,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:22,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:22,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:22,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:38:22,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:22,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:38:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:22,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:22,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 23:38:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:22,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:22,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:22,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:22,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:22,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:22,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:22,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:22,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:22,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:22,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:22,528 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 23:38:22,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302474997] [2020-09-24 23:38:22,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:38:22,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:38:22,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928451146] [2020-09-24 23:38:22,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:38:22,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:22,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:38:22,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:38:22,531 INFO L87 Difference]: Start difference. First operand 266 states and 284 transitions. Second operand 12 states. [2020-09-24 23:38:23,045 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:23,881 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:38:24,504 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:24,785 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:25,166 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:25,507 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:38:25,827 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:38:26,156 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:38:26,460 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:26,840 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:27,190 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:38:27,499 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:38:28,219 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 23:38:28,685 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:28,978 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:29,383 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:38:29,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:29,940 INFO L93 Difference]: Finished difference Result 483 states and 547 transitions. [2020-09-24 23:38:29,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 23:38:29,941 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 157 [2020-09-24 23:38:29,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:29,945 INFO L225 Difference]: With dead ends: 483 [2020-09-24 23:38:29,945 INFO L226 Difference]: Without dead ends: 380 [2020-09-24 23:38:29,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2020-09-24 23:38:29,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-09-24 23:38:30,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 331. [2020-09-24 23:38:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-24 23:38:30,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 354 transitions. [2020-09-24 23:38:30,009 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 354 transitions. Word has length 157 [2020-09-24 23:38:30,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:30,010 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 354 transitions. [2020-09-24 23:38:30,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:38:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 354 transitions. [2020-09-24 23:38:30,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 23:38:30,016 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:30,016 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:38:30,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:38:30,017 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:30,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:30,017 INFO L82 PathProgramCache]: Analyzing trace with hash 605988112, now seen corresponding path program 1 times [2020-09-24 23:38:30,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:30,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719782427] [2020-09-24 23:38:30,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:30,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:30,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:30,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:33,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:34,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:35,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:35,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 23:38:35,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:38:35,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 23:38:35,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:38:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:38:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 23:38:35,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:35,512 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:35,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:35,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:35,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:35,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:35,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:35,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-24 23:38:35,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:38:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:35,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:35,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:35,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:35,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:35,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:35,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:35,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:35,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:35,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:35,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:35,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:35,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:35,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:35,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:35,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:35,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:35,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:35,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:35,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:35,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:35,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:35,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:35,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:35,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:35,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:35,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:35,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:35,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:38:35,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:35,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:35,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:35,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:35,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:35,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:35,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:35,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:35,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:35,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:35,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:35,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:35,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 23:38:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:35,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:35,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:35,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:38:35,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:35,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:38:35,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:38:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:38:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:38:35,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:35,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:38:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:35,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:36,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:36,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:38:36,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:36,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 23:38:36,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:38:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:38:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:38:36,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:36,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:38:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:36,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:36,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:36,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:38:36,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:38:36,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:38:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:36,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:38:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:36,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:36,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:36,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:36,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:36,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:36,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:36,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 23:38:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:36,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:36,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:36,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:38:36,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:36,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:38:36,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:36,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:38:36,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:38:36,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:38:36,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:36,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 23:38:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:36,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:36,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:36,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:36,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:36,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:36,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:36,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:36,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:36,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:36,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 23:38:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:36,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:36,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:36,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:36,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:36,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:36,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:36,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:36,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:36,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 23:38:36,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719782427] [2020-09-24 23:38:36,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:38:36,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 23:38:36,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482504053] [2020-09-24 23:38:36,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:38:36,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:36,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:38:36,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:38:36,200 INFO L87 Difference]: Start difference. First operand 331 states and 354 transitions. Second operand 10 states. [2020-09-24 23:38:36,913 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-24 23:38:37,607 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:38,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:38,448 INFO L93 Difference]: Finished difference Result 419 states and 458 transitions. [2020-09-24 23:38:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:38:38,449 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-09-24 23:38:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:38,450 INFO L225 Difference]: With dead ends: 419 [2020-09-24 23:38:38,450 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 23:38:38,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:38:38,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 23:38:38,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 23:38:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 23:38:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 23:38:38,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 196 [2020-09-24 23:38:38,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:38,452 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 23:38:38,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:38:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 23:38:38,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 23:38:38,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:38:38,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 23:38:38,659 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:38:39,008 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-24 23:38:39,342 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-24 23:38:39,602 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 23 [2020-09-24 23:38:39,944 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-24 23:38:40,103 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:38:40,436 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-24 23:38:40,599 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:38:40,939 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-24 23:38:41,099 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:38:41,435 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-24 23:38:41,599 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:38:41,751 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:38:41,904 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:38:42,059 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:38:42,519 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 220 [2020-09-24 23:38:42,676 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:38:42,832 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189