/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_spec5_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:20:50,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:20:50,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:20:50,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:20:50,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:20:50,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:20:50,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:20:50,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:20:50,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:20:50,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:20:50,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:20:50,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:20:50,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:20:50,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:20:50,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:20:50,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:20:50,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:20:50,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:20:50,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:20:50,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:20:50,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:20:50,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:20:50,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:20:50,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:20:50,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:20:50,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:20:50,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:20:50,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:20:50,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:20:50,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:20:50,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:20:50,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:20:50,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:20:50,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:20:50,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:20:50,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:20:50,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:20:50,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:20:50,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:20:50,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:20:50,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:20:50,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:20:50,504 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:20:50,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:20:50,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:20:50,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:20:50,506 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:20:50,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:20:50,507 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:20:50,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:20:50,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:20:50,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:20:50,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:20:50,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:20:50,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:20:50,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:20:50,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:20:50,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:20:50,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:20:50,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:20:50,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:20:50,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:20:50,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:20:50,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:20:50,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:20:50,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:20:50,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:20:50,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:20:50,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:20:50,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:20:50,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:20:50,511 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:20:50,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:20:50,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:20:50,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:20:50,983 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:20:50,984 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:20:50,985 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product16.cil.c [2020-09-25 05:20:51,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ea1dabab/f0d652ab75af4a3fa4531545b6ba91e3/FLAG5844f7c58 [2020-09-25 05:20:51,659 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:20:51,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product16.cil.c [2020-09-25 05:20:51,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ea1dabab/f0d652ab75af4a3fa4531545b6ba91e3/FLAG5844f7c58 [2020-09-25 05:20:51,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ea1dabab/f0d652ab75af4a3fa4531545b6ba91e3 [2020-09-25 05:20:51,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:20:51,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:20:51,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:20:51,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:20:51,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:20:51,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:20:51" (1/1) ... [2020-09-25 05:20:51,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:51, skipping insertion in model container [2020-09-25 05:20:51,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:20:51" (1/1) ... [2020-09-25 05:20:51,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:20:52,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:20:52,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:20:52,463 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:20:52,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:20:52,671 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:20:52,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52 WrapperNode [2020-09-25 05:20:52,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:20:52,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:20:52,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:20:52,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:20:52,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52" (1/1) ... [2020-09-25 05:20:52,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52" (1/1) ... [2020-09-25 05:20:52,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52" (1/1) ... [2020-09-25 05:20:52,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52" (1/1) ... [2020-09-25 05:20:52,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52" (1/1) ... [2020-09-25 05:20:52,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52" (1/1) ... [2020-09-25 05:20:52,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52" (1/1) ... [2020-09-25 05:20:52,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:20:52,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:20:52,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:20:52,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:20:52,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:20:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:20:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:20:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:20:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:20:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:20:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:20:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:20:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:20:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:20:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 05:20:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 05:20:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 05:20:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:20:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:20:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:20:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:20:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:20:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:20:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:20:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:20:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:20:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:20:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:20:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:20:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:20:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 05:20:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:20:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:20:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:20:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:20:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:20:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:20:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:20:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:20:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:20:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:20:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:20:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:20:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:20:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:20:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:20:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:20:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:20:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:20:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:20:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:20:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:20:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:20:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:20:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:20:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:20:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:20:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:20:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:20:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:20:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:20:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:20:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:20:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 05:20:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 05:20:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 05:20:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:20:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:20:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:20:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:20:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:20:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:20:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:20:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:20:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:20:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:20:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:20:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:20:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:20:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:20:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:20:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:20:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:20:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:20:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:20:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:20:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:20:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:20:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:20:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:20:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 05:20:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:20:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:20:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:20:54,113 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:20:54,113 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:20:54,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:20:54 BoogieIcfgContainer [2020-09-25 05:20:54,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:20:54,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:20:54,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:20:54,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:20:54,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:20:51" (1/3) ... [2020-09-25 05:20:54,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d295f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:20:54, skipping insertion in model container [2020-09-25 05:20:54,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:20:52" (2/3) ... [2020-09-25 05:20:54,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d295f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:20:54, skipping insertion in model container [2020-09-25 05:20:54,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:20:54" (3/3) ... [2020-09-25 05:20:54,132 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product16.cil.c [2020-09-25 05:20:54,145 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:20:54,157 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:20:54,181 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:20:54,216 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:20:54,216 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:20:54,216 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:20:54,217 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:20:54,217 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:20:54,217 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:20:54,217 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:20:54,217 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:20:54,248 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 05:20:54,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 05:20:54,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:20:54,272 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:20:54,272 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:20:54,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:20:54,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1413214232, now seen corresponding path program 1 times [2020-09-25 05:20:54,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:20:54,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680732706] [2020-09-25 05:20:54,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:20:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:54,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:55,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:56,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:56,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:59,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:59,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:59,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 05:20:59,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:20:59,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 05:20:59,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:59,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:20:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:59,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 05:21:00,175 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:00,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:21:00,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 05:21:00,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:21:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:00,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:00,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:00,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:21:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:00,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:00,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:21:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:00,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:21:00,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:21:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:00,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:00,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:00,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:21:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:00,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:00,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:00,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:21:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:21:00,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:00,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:21:00,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:00,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:00,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 05:21:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:00,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:00,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 05:21:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:00,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:00,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:00,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:00,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:00,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:00,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:00,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:00,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:00,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:00,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:00,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 05:21:00,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680732706] [2020-09-25 05:21:00,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:21:00,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:21:00,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399663783] [2020-09-25 05:21:00,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:21:00,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:21:00,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:21:00,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:21:00,519 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 4 states. [2020-09-25 05:21:01,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:21:01,799 INFO L93 Difference]: Finished difference Result 444 states and 525 transitions. [2020-09-25 05:21:01,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:21:01,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 05:21:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:21:01,832 INFO L225 Difference]: With dead ends: 444 [2020-09-25 05:21:01,832 INFO L226 Difference]: Without dead ends: 288 [2020-09-25 05:21:01,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:21:01,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-25 05:21:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 241. [2020-09-25 05:21:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-25 05:21:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions. [2020-09-25 05:21:01,951 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 160 [2020-09-25 05:21:01,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:21:01,952 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 261 transitions. [2020-09-25 05:21:01,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:21:01,953 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions. [2020-09-25 05:21:01,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 05:21:01,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:21:01,958 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:21:01,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:21:01,959 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:21:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:21:01,960 INFO L82 PathProgramCache]: Analyzing trace with hash 574057430, now seen corresponding path program 1 times [2020-09-25 05:21:01,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:21:01,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181821314] [2020-09-25 05:21:01,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:21:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:02,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:02,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:03,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:04,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:05,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 05:21:07,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:21:07,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 05:21:07,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:07,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:21:07,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:21:07,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:21:07,425 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:07,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:21:07,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 05:21:07,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:07,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:21:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:07,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:07,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:07,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:07,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:21:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:07,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:07,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:07,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:21:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:07,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:21:07,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:07,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:07,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:21:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:07,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:07,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:07,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:21:07,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:21:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:07,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:07,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:07,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:07,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:21:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:21:07,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:21:07,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:21:07,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:07,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:07,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:07,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:07,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:21:07,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 05:21:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:07,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:21:07,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:07,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:07,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 05:21:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:07,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:07,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:07,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:07,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:07,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:07,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:07,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:07,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 05:21:07,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181821314] [2020-09-25 05:21:07,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:21:07,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:21:07,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739254197] [2020-09-25 05:21:07,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:21:07,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:21:07,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:21:07,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:21:07,749 INFO L87 Difference]: Start difference. First operand 241 states and 261 transitions. Second operand 5 states. [2020-09-25 05:21:08,656 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:21:09,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:21:09,533 INFO L93 Difference]: Finished difference Result 363 states and 409 transitions. [2020-09-25 05:21:09,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:21:09,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 05:21:09,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:21:09,539 INFO L225 Difference]: With dead ends: 363 [2020-09-25 05:21:09,540 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 05:21:09,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:21:09,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 05:21:09,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 231. [2020-09-25 05:21:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-25 05:21:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-09-25 05:21:09,589 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 161 [2020-09-25 05:21:09,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:21:09,589 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-09-25 05:21:09,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:21:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-09-25 05:21:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 05:21:09,592 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:21:09,593 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:21:09,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:21:09,593 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:21:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:21:09,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1217367554, now seen corresponding path program 1 times [2020-09-25 05:21:09,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:21:09,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993829001] [2020-09-25 05:21:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:21:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:09,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:09,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:10,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:14,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:14,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 05:21:14,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:21:14,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 05:21:14,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:14,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:21:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 05:21:14,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:14,988 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:14,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:21:15,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 05:21:15,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:15,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:15,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:15,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:21:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:15,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:21:15,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:15,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:21:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:15,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:15,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:21:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:15,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:21:15,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:15,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:15,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:15,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:21:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:15,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:15,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:15,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:21:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:15,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:15,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:15,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:15,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:21:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:15,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:15,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:15,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:21:15,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 05:21:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:21:15,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:21:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:21:15,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:15,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:15,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:15,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:15,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:15,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 05:21:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:15,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:15,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:15,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:15,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:15,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 05:21:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:15,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:15,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:15,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:15,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:15,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:15,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:15,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:15,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:15,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:21:15,273 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 05:21:15,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993829001] [2020-09-25 05:21:15,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:21:15,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:21:15,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144274905] [2020-09-25 05:21:15,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:21:15,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:21:15,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:21:15,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:21:15,279 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 6 states. [2020-09-25 05:21:15,858 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:17,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:21:17,629 INFO L93 Difference]: Finished difference Result 537 states and 624 transitions. [2020-09-25 05:21:17,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:21:17,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 05:21:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:21:17,636 INFO L225 Difference]: With dead ends: 537 [2020-09-25 05:21:17,638 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 05:21:17,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:21:17,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 05:21:17,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 337. [2020-09-25 05:21:17,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-25 05:21:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 372 transitions. [2020-09-25 05:21:17,705 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 372 transitions. Word has length 174 [2020-09-25 05:21:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:21:17,705 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 372 transitions. [2020-09-25 05:21:17,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:21:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 372 transitions. [2020-09-25 05:21:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 05:21:17,710 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:21:17,710 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:21:17,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:21:17,710 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:21:17,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:21:17,711 INFO L82 PathProgramCache]: Analyzing trace with hash 820009847, now seen corresponding path program 1 times [2020-09-25 05:21:17,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:21:17,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508268922] [2020-09-25 05:21:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:21:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:17,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:20,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:22,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:22,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 05:21:22,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:21:22,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 05:21:22,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:22,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:22,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:21:22,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 05:21:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 05:21:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:21:23,241 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:23,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:21:23,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 05:21:23,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:23,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:21:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:23,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:23,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:23,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:21:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:23,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:23,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:23,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:23,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:21:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:23,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:21:23,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:23,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:23,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:21:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:23,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:23,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:23,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:21:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:23,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:23,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:23,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 05:21:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:21:23,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:21:23,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:21:23,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:21:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:21:23,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:21:23,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:23,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:21:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:23,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:23,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:23,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 05:21:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:23,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:21:23,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:23,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:21:23,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 05:21:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:23,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:23,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:23,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:23,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:21:23,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:23,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:21:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:21:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 05:21:23,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508268922] [2020-09-25 05:21:23,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:21:23,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:21:23,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369821553] [2020-09-25 05:21:23,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:21:23,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:21:23,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:21:23,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:21:23,751 INFO L87 Difference]: Start difference. First operand 337 states and 372 transitions. Second operand 10 states. [2020-09-25 05:21:24,557 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:25,592 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:21:25,937 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 05:21:26,929 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:21:27,306 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 05:21:27,629 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 05:21:27,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:21:27,700 INFO L93 Difference]: Finished difference Result 568 states and 674 transitions. [2020-09-25 05:21:27,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:21:27,701 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 05:21:27,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:21:27,702 INFO L225 Difference]: With dead ends: 568 [2020-09-25 05:21:27,703 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 05:21:27,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:21:27,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 05:21:27,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 05:21:27,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 05:21:27,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 05:21:27,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-09-25 05:21:27,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:21:27,707 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 05:21:27,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:21:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 05:21:27,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 05:21:27,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:21:27,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 05:21:27,899 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:28,069 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:28,251 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:28,381 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 6 [2020-09-25 05:21:28,540 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:28,708 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:28,869 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:29,146 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 6 [2020-09-25 05:21:29,308 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:29,465 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:29,787 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 05:21:30,109 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 05:21:30,435 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 05:21:30,757 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 05:21:30,902 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:31,051 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:31,212 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:31,360 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:31,513 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:31,661 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:31,824 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:31,983 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:32,136 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:32,289 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:32,441 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:32,594 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:32,747 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:32,857 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 6 [2020-09-25 05:21:33,012 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:33,166 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:33,313 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:33,463 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:33,621 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:33,774 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:33,928 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:34,081 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:34,230 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:34,383 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:34,539 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:34,693 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:34,846 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:34,998 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:35,151 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:35,299 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:35,404 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 6 [2020-09-25 05:21:35,575 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:35,725 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:35,879 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:36,132 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 6 [2020-09-25 05:21:36,289 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:36,395 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 6 [2020-09-25 05:21:36,542 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:36,696 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:36,851 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:37,004 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:37,159 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:37,322 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:37,483 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:37,635 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:37,793 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:37,955 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:38,108 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:38,260 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:38,412 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:38,564 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:38,976 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 7 [2020-09-25 05:21:39,196 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 05:21:39,487 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 05:21:39,695 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 05:21:39,919 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 23 [2020-09-25 05:21:40,127 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 8 [2020-09-25 05:21:40,395 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:40,805 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 7 [2020-09-25 05:21:41,179 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 14 [2020-09-25 05:21:41,390 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 05:21:41,624 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2020-09-25 05:21:42,029 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 8