/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:54:54,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:54:54,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:54:54,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:54:54,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:54:54,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:54:54,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:54:54,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:54:54,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:54:54,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:54:54,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:54:54,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:54:54,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:54:54,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:54:54,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:54:54,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:54:54,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:54:54,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:54:54,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:54:54,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:54:54,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:54:54,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:54:54,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:54:54,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:54:54,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:54:54,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:54:54,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:54:54,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:54:54,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:54:54,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:54:54,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:54:54,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:54:54,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:54:54,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:54:54,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:54:54,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:54:54,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:54:54,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:54:54,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:54:54,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:54:54,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:54:54,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:54:54,966 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:54:54,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:54:54,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:54:54,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:54:54,969 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:54:54,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:54:54,969 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:54:54,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:54:54,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:54:54,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:54:54,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:54:54,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:54:54,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:54:54,972 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:54:54,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:54:54,972 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:54:54,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:54:54,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:54:54,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:54:54,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:54:54,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:54:54,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:54:54,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:54:54,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:54:54,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:54:54,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:54:54,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:54:54,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:54:54,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:54:54,975 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 17:54:55,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:54:55,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:54:55,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:54:55,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:54:55,445 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:54:55,446 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product32.cil.c [2020-09-24 17:54:55,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24771a7fd/6ace98ca132b4cd0ad91dd088fbd113a/FLAG9f9a00393 [2020-09-24 17:54:56,157 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:54:56,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product32.cil.c [2020-09-24 17:54:56,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24771a7fd/6ace98ca132b4cd0ad91dd088fbd113a/FLAG9f9a00393 [2020-09-24 17:54:56,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24771a7fd/6ace98ca132b4cd0ad91dd088fbd113a [2020-09-24 17:54:56,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:54:56,445 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:54:56,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:54:56,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:54:56,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:54:56,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:54:56" (1/1) ... [2020-09-24 17:54:56,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:56, skipping insertion in model container [2020-09-24 17:54:56,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:54:56" (1/1) ... [2020-09-24 17:54:56,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:54:56,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:54:56,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:54:56,996 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:54:57,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:54:57,163 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:54:57,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57 WrapperNode [2020-09-24 17:54:57,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:54:57,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:54:57,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:54:57,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:54:57,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57" (1/1) ... [2020-09-24 17:54:57,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57" (1/1) ... [2020-09-24 17:54:57,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57" (1/1) ... [2020-09-24 17:54:57,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57" (1/1) ... [2020-09-24 17:54:57,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57" (1/1) ... [2020-09-24 17:54:57,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57" (1/1) ... [2020-09-24 17:54:57,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57" (1/1) ... [2020-09-24 17:54:57,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:54:57,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:54:57,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:54:57,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:54:57,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:54:57,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:54:57,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:54:57,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:54:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:54:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:54:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:54:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:54:57,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:54:57,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:54:57,369 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:54:57,369 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:54:57,369 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:54:57,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:54:57,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:54:57,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:54:57,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 17:54:57,370 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:54:57,370 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:54:57,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:54:57,371 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:54:57,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:54:57,371 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:54:57,372 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:54:57,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:54:57,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:54:57,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:54:57,372 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 17:54:57,372 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:54:57,373 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:54:57,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:54:57,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:54:57,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:54:57,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 17:54:57,373 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 17:54:57,374 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 17:54:57,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:54:57,374 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:54:57,374 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:54:57,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:54:57,374 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:54:57,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:54:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:54:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:54:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:54:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:54:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:54:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:54:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:54:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:54:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:54:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:54:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:54:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:54:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:54:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:54:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:54:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:54:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:54:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:54:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:54:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:54:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:54:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:54:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:54:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:54:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:54:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:54:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 17:54:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:54:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:54:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:54:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:54:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:54:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:54:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 17:54:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 17:54:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 17:54:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:54:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:54:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:54:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:54:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:54:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:54:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:54:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:54:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 17:54:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 17:54:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:54:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 17:54:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:54:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:54:57,383 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:54:57,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:54:57,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:54:57,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:54:57,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:54:58,589 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:54:58,589 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:54:58,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:54:58 BoogieIcfgContainer [2020-09-24 17:54:58,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:54:58,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:54:58,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:54:58,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:54:58,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:54:56" (1/3) ... [2020-09-24 17:54:58,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f9fe24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:54:58, skipping insertion in model container [2020-09-24 17:54:58,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:54:57" (2/3) ... [2020-09-24 17:54:58,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f9fe24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:54:58, skipping insertion in model container [2020-09-24 17:54:58,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:54:58" (3/3) ... [2020-09-24 17:54:58,609 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product32.cil.c [2020-09-24 17:54:58,621 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:54:58,635 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:54:58,656 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:54:58,690 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:54:58,690 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:54:58,690 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:54:58,691 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:54:58,691 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:54:58,691 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:54:58,691 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:54:58,691 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:54:58,719 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-24 17:54:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:54:58,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:54:58,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:54:58,740 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:54:58,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:54:58,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1070774574, now seen corresponding path program 1 times [2020-09-24 17:54:58,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:54:58,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711699500] [2020-09-24 17:54:58,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:54:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:54:59,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:54:59,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:00,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:01,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:04,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:04,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 17:55:04,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:55:04,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 17:55:04,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:04,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:04,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 17:55:04,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:04,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 17:55:04,841 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:55:04,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:55:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:04,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:05,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:05,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:55:05,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:05,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 17:55:05,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:05,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:55:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:05,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:05,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:05,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:05,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:05,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:55:05,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:05,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:05,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:05,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:55:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:05,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:05,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:05,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:05,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:05,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:55:05,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:05,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:05,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:05,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:55:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:05,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:05,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:05,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:05,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:55:05,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:05,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:55:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:05,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:05,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:05,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:05,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:05,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:55:05,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:05,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 17:55:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:05,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:05,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:05,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:05,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:05,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:55:05,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:05,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:05,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 17:55:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:05,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:05,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:05,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:05,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:05,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:55:05,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:05,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:05,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:55:05,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711699500] [2020-09-24 17:55:05,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:55:05,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:55:05,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565431864] [2020-09-24 17:55:05,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:55:05,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:55:05,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:55:05,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:55:05,269 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-09-24 17:55:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:55:06,726 INFO L93 Difference]: Finished difference Result 478 states and 575 transitions. [2020-09-24 17:55:06,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:55:06,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:55:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:55:06,758 INFO L225 Difference]: With dead ends: 478 [2020-09-24 17:55:06,758 INFO L226 Difference]: Without dead ends: 298 [2020-09-24 17:55:06,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:55:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-24 17:55:06,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 254. [2020-09-24 17:55:06,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-24 17:55:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 278 transitions. [2020-09-24 17:55:06,917 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 278 transitions. Word has length 142 [2020-09-24 17:55:06,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:55:06,918 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 278 transitions. [2020-09-24 17:55:06,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:55:06,918 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 278 transitions. [2020-09-24 17:55:06,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 17:55:06,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:55:06,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:55:06,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:55:06,924 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:55:06,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:55:06,925 INFO L82 PathProgramCache]: Analyzing trace with hash -765681893, now seen corresponding path program 1 times [2020-09-24 17:55:06,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:55:06,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533362142] [2020-09-24 17:55:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:55:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:07,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:07,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:08,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:09,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:10,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:12,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:12,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 17:55:12,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:55:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 17:55:12,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:55:12,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 17:55:12,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:55:12,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:12,318 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:55:12,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:55:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:12,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:12,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:12,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:55:12,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:12,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 17:55:12,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:12,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:12,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:12,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:55:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:12,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:12,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:12,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:12,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:12,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:12,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:12,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:12,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:12,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:55:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:12,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:12,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:12,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:12,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:12,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:12,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:12,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:12,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:12,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:12,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:12,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:55:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:12,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:12,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:12,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:12,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:12,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:55:12,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:12,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:12,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:55:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:12,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:12,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:12,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:12,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:12,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:12,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:12,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:12,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:12,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:12,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:12,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 17:55:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:12,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:12,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:12,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:12,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:12,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:12,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 17:55:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:12,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:12,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:12,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:12,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:12,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:12,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:12,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:12,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:55:12,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533362142] [2020-09-24 17:55:12,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:55:12,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:55:12,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444026640] [2020-09-24 17:55:12,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:55:12,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:55:12,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:55:12,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:55:12,540 INFO L87 Difference]: Start difference. First operand 254 states and 278 transitions. Second operand 4 states. [2020-09-24 17:55:13,233 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:55:14,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:55:14,156 INFO L93 Difference]: Finished difference Result 385 states and 438 transitions. [2020-09-24 17:55:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:55:14,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 17:55:14,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:55:14,162 INFO L225 Difference]: With dead ends: 385 [2020-09-24 17:55:14,162 INFO L226 Difference]: Without dead ends: 281 [2020-09-24 17:55:14,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:55:14,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-24 17:55:14,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 244. [2020-09-24 17:55:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-24 17:55:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 265 transitions. [2020-09-24 17:55:14,246 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 265 transitions. Word has length 143 [2020-09-24 17:55:14,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:55:14,246 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 265 transitions. [2020-09-24 17:55:14,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:55:14,246 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 265 transitions. [2020-09-24 17:55:14,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 17:55:14,253 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:55:14,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:55:14,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:55:14,254 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:55:14,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:55:14,255 INFO L82 PathProgramCache]: Analyzing trace with hash -2036624560, now seen corresponding path program 1 times [2020-09-24 17:55:14,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:55:14,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964933448] [2020-09-24 17:55:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:55:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:14,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:14,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:15,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:15,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:19,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:19,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 17:55:19,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:55:19,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 17:55:19,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:55:19,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 17:55:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:55:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:19,695 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:55:19,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:55:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:19,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:19,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:19,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:55:19,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:19,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 17:55:19,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:19,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:19,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:55:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:19,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:19,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:19,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:19,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:19,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:55:19,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:19,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:19,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:55:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:19,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:19,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:19,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:19,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:19,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:55:19,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:19,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:19,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:55:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:19,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:19,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:19,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:19,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:19,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:19,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:19,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:55:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:19,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:19,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:19,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:19,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:19,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:55:19,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:19,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:19,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:19,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:19,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:19,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 17:55:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:19,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:19,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:19,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:55:19,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:19,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:55:19,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:19,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:55:19,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:19,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:55:19,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:19,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 17:55:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:19,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:19,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:19,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:19,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:55:19,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:19,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:19,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:55:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:19,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:19,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:19,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:19,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:19,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:19,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:19,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:19,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:55:19,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:19,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:55:19,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964933448] [2020-09-24 17:55:19,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:55:19,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:55:19,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460294348] [2020-09-24 17:55:19,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:55:19,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:55:19,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:55:19,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:55:19,922 INFO L87 Difference]: Start difference. First operand 244 states and 265 transitions. Second operand 5 states. [2020-09-24 17:55:20,468 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:22,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:55:22,534 INFO L93 Difference]: Finished difference Result 582 states and 682 transitions. [2020-09-24 17:55:22,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:55:22,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 17:55:22,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:55:22,539 INFO L225 Difference]: With dead ends: 582 [2020-09-24 17:55:22,540 INFO L226 Difference]: Without dead ends: 448 [2020-09-24 17:55:22,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:55:22,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-09-24 17:55:22,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 368. [2020-09-24 17:55:22,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-09-24 17:55:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 411 transitions. [2020-09-24 17:55:22,622 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 411 transitions. Word has length 156 [2020-09-24 17:55:22,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:55:22,623 INFO L479 AbstractCegarLoop]: Abstraction has 368 states and 411 transitions. [2020-09-24 17:55:22,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:55:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 411 transitions. [2020-09-24 17:55:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 17:55:22,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:55:22,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:55:22,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:55:22,627 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:55:22,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:55:22,627 INFO L82 PathProgramCache]: Analyzing trace with hash 192593141, now seen corresponding path program 1 times [2020-09-24 17:55:22,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:55:22,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57672127] [2020-09-24 17:55:22,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:55:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:22,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:23,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:23,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:26,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:27,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:27,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 17:55:27,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:55:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 17:55:27,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:55:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 17:55:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:55:27,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:28,118 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:55:28,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:55:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:28,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:28,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:28,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 17:55:28,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-24 17:55:28,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:28,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 17:55:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:28,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:28,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:28,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:28,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:28,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:28,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:28,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:28,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 17:55:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:28,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:28,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:28,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:28,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:28,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:28,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:28,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:28,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 17:55:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:28,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:28,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:28,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:28,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:28,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:55:28,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:28,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:28,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:28,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:28,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 17:55:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:28,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:28,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:28,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:55:28,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:28,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:55:28,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:28,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:28,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:28,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 17:55:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:28,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:28,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:28,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:55:28,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:28,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:55:28,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:28,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:55:28,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:55:28,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:28,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 17:55:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:28,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:28,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:28,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:28,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:55:28,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:55:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:55:28,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:55:28,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 17:55:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:55:28,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:55:28,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:55:28,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:55:28,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:55:28,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:55:28,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:55:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:55:28,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:55:28,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:55:28,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:55:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:55:28,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57672127] [2020-09-24 17:55:28,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:55:28,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:55:28,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897580000] [2020-09-24 17:55:28,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:55:28,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:55:28,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:55:28,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:55:28,521 INFO L87 Difference]: Start difference. First operand 368 states and 411 transitions. Second operand 9 states. [2020-09-24 17:55:29,038 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:30,540 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 17:55:31,150 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 17:55:31,465 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:31,790 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:55:32,114 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:55:32,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:55:32,361 INFO L93 Difference]: Finished difference Result 577 states and 678 transitions. [2020-09-24 17:55:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:55:32,362 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 17:55:32,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:55:32,363 INFO L225 Difference]: With dead ends: 577 [2020-09-24 17:55:32,363 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:55:32,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:55:32,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:55:32,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:55:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:55:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:55:32,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-24 17:55:32,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:55:32,367 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:55:32,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:55:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:55:32,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:55:32,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:55:32,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:55:32,602 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:32,775 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:32,903 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 17:55:33,060 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:33,212 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:33,365 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:33,520 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:33,642 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 17:55:33,966 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:55:34,278 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:55:34,531 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 17:55:34,844 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:55:34,954 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-24 17:55:35,102 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:35,252 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:35,401 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:35,692 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 17:55:35,985 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 17:55:36,279 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-24 17:55:36,422 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:55:36,569 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:36,725 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:36,873 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:37,018 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:37,169 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:37,320 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:37,466 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:37,615 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:37,759 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:37,908 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:38,057 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:38,206 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:38,350 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:38,499 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:38,648 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:38,808 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:38,952 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:39,101 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:39,249 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:39,499 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-24 17:55:39,658 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:39,806 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:39,953 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:40,101 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:40,354 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:40,502 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:40,651 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:40,963 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:55:41,272 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:55:41,507 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-24 17:55:41,817 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-24 17:55:41,969 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:42,134 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:42,277 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:42,422 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:42,570 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:42,723 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:42,876 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:43,024 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:43,272 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:43,421 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:43,568 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:43,712 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 17:55:43,861 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 17:55:44,289 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-24 17:55:44,499 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:55:44,689 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 17:55:45,115 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-24 17:55:45,318 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-24 17:55:45,519 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:55:45,663 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 8 [2020-09-24 17:55:45,873 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 17:55:46,075 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-24 17:55:46,484 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11