/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:54:30,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:54:30,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:54:30,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:54:30,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:54:30,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:54:30,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:54:30,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:54:30,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:54:30,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:54:30,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:54:30,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:54:30,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:54:30,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:54:30,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:54:30,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:54:30,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:54:30,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:54:30,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:54:30,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:54:30,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:54:30,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:54:30,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:54:30,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:54:30,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:54:30,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:54:30,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:54:30,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:54:30,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:54:30,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:54:30,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:54:30,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:54:30,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:54:30,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:54:30,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:54:30,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:54:30,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:54:30,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:54:30,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:54:30,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:54:30,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:54:30,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:54:31,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:54:31,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:54:31,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:54:31,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:54:31,026 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:54:31,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:54:31,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:54:31,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:54:31,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:54:31,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:54:31,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:54:31,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:54:31,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:54:31,030 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:54:31,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:54:31,030 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:54:31,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:54:31,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:54:31,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:54:31,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:54:31,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:54:31,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:54:31,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:54:31,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:54:31,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:54:31,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:54:31,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:54:31,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:54:31,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:54:31,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:54:31,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:54:31,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:54:31,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:54:31,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:54:31,524 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:54:31,526 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-25 02:54:31,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c42e5369d/39eb564616054a068ef23d85611b42bd/FLAGa88e9d4ab [2020-09-25 02:54:32,227 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:54:32,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-25 02:54:32,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c42e5369d/39eb564616054a068ef23d85611b42bd/FLAGa88e9d4ab [2020-09-25 02:54:32,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c42e5369d/39eb564616054a068ef23d85611b42bd [2020-09-25 02:54:32,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:54:32,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:54:32,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:32,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:54:32,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:54:32,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:32" (1/1) ... [2020-09-25 02:54:32,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284ba15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:32, skipping insertion in model container [2020-09-25 02:54:32,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:32" (1/1) ... [2020-09-25 02:54:32,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:54:32,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:54:33,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:33,100 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:54:33,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:33,252 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:54:33,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33 WrapperNode [2020-09-25 02:54:33,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:33,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:54:33,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:54:33,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:54:33,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33" (1/1) ... [2020-09-25 02:54:33,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33" (1/1) ... [2020-09-25 02:54:33,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33" (1/1) ... [2020-09-25 02:54:33,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33" (1/1) ... [2020-09-25 02:54:33,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33" (1/1) ... [2020-09-25 02:54:33,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33" (1/1) ... [2020-09-25 02:54:33,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33" (1/1) ... [2020-09-25 02:54:33,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:54:33,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:54:33,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:54:33,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:54:33,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:54:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:54:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:54:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:54:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:54:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:54:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:54:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:54:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:54:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 02:54:33,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:54:33,442 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:54:33,442 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:54:33,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:54:33,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:54:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:54:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:54:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:54:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:54:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:54:33,444 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:54:33,444 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:54:33,444 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:54:33,444 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:54:33,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:33,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:54:33,445 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:54:33,445 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:54:33,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:54:33,445 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:54:33,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:54:33,445 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:54:33,446 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:54:33,446 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:54:33,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:54:33,446 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:54:33,446 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:54:33,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:54:33,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:54:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:54:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:54:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:54:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:54:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:54:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:54:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:54:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:54:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:54:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 02:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:54:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:54:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:54:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:54:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:54:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:54:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:54:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:54:34,696 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:54:34,696 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:54:34,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:34 BoogieIcfgContainer [2020-09-25 02:54:34,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:54:34,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:54:34,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:54:34,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:54:34,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:54:32" (1/3) ... [2020-09-25 02:54:34,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d80810b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:34, skipping insertion in model container [2020-09-25 02:54:34,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:33" (2/3) ... [2020-09-25 02:54:34,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d80810b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:34, skipping insertion in model container [2020-09-25 02:54:34,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:34" (3/3) ... [2020-09-25 02:54:34,714 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-09-25 02:54:34,725 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:54:34,735 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:54:34,756 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:54:34,789 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:54:34,790 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:54:34,790 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:54:34,790 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:54:34,790 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:54:34,790 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:54:34,790 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:54:34,791 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:54:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states. [2020-09-25 02:54:34,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:54:34,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:34,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:34,841 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:34,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:34,849 INFO L82 PathProgramCache]: Analyzing trace with hash 826882234, now seen corresponding path program 1 times [2020-09-25 02:54:34,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:34,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446888938] [2020-09-25 02:54:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:37,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:38,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:40,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:40,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:54:40,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:54:40,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 02:54:40,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:40,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:54:40,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 02:54:40,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:54:40,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 02:54:40,805 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:40,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:40,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:41,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-25 02:54:41,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:54:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:41,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:41,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:41,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:41,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:41,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:41,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:41,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:41,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:54:41,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:41,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:41,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:41,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:41,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:41,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:41,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:41,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:41,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:54:41,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:41,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:54:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:41,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:41,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:41,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:41,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:54:41,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446888938] [2020-09-25 02:54:41,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:41,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:54:41,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637036512] [2020-09-25 02:54:41,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:54:41,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:41,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:54:41,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:54:41,399 INFO L87 Difference]: Start difference. First operand 342 states. Second operand 8 states. [2020-09-25 02:54:42,312 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:43,411 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:43,722 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:44,032 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:44,427 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:44,770 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:45,815 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:46,138 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:46,686 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:48,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:48,331 INFO L93 Difference]: Finished difference Result 758 states and 923 transitions. [2020-09-25 02:54:48,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:54:48,333 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:54:48,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:48,360 INFO L225 Difference]: With dead ends: 758 [2020-09-25 02:54:48,360 INFO L226 Difference]: Without dead ends: 510 [2020-09-25 02:54:48,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:54:48,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-09-25 02:54:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 447. [2020-09-25 02:54:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-09-25 02:54:48,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 501 transitions. [2020-09-25 02:54:48,547 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 501 transitions. Word has length 142 [2020-09-25 02:54:48,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:48,548 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 501 transitions. [2020-09-25 02:54:48,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:54:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 501 transitions. [2020-09-25 02:54:48,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 02:54:48,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:48,555 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] [2020-09-25 02:54:48,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:54:48,556 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:48,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:48,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1454477495, now seen corresponding path program 1 times [2020-09-25 02:54:48,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:48,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276020326] [2020-09-25 02:54:48,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:53,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:53,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 02:54:53,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:54:53,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4978 [2020-09-25 02:54:53,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:53,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:54:53,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:54:53,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 02:54:53,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:53,924 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:54,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:54,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:54,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:54,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 02:54:54,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:54,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:54,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:54,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:54:54,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:54,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:54,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:54,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:54,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:54,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:54,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:54,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:54,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:54,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:54,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:54,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:54,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:54,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:54,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:54,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:54,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:54,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:54,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:54,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:54,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:54,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:54,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:54,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:54,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:54,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:54,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:54,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:54,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:54,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:54,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:54,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:54,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:54,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:54,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:54,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:54,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:54,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:54,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:54:54,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:54,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:54:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:54,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:54,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:54,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:54,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:54,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:54,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:54,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:54,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:54,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:54,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 02:54:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:54,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:54,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:54,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:54,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:54,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:54,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 02:54:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:54,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:54,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:54,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:54,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:54:54,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:54,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:54:54,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276020326] [2020-09-25 02:54:54,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:54,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 02:54:54,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778294938] [2020-09-25 02:54:54,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:54:54,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:54,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:54:54,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:54:54,464 INFO L87 Difference]: Start difference. First operand 447 states and 501 transitions. Second operand 10 states. [2020-09-25 02:54:54,985 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:56,190 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:56,550 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:56,947 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:57,324 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:57,652 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:58,467 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:58,776 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:59,245 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:01,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:55:01,209 INFO L93 Difference]: Finished difference Result 1217 states and 1545 transitions. [2020-09-25 02:55:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 02:55:01,209 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 02:55:01,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:55:01,221 INFO L225 Difference]: With dead ends: 1217 [2020-09-25 02:55:01,221 INFO L226 Difference]: Without dead ends: 880 [2020-09-25 02:55:01,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 02:55:01,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2020-09-25 02:55:01,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 645. [2020-09-25 02:55:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-09-25 02:55:01,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 751 transitions. [2020-09-25 02:55:01,338 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 751 transitions. Word has length 161 [2020-09-25 02:55:01,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:55:01,339 INFO L479 AbstractCegarLoop]: Abstraction has 645 states and 751 transitions. [2020-09-25 02:55:01,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:55:01,340 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 751 transitions. [2020-09-25 02:55:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-09-25 02:55:01,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:55:01,345 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:55:01,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:55:01,346 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:55:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:55:01,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1794268863, now seen corresponding path program 1 times [2020-09-25 02:55:01,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:55:01,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407275666] [2020-09-25 02:55:01,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:55:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:01,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:01,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:01,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:01,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:01,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:02,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:02,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:06,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:06,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-09-25 02:55:06,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:55:06,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 02:55:06,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:06,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:55:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 02:55:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 02:55:06,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:06,787 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:55:06,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:55:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:06,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:06,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:06,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:55:06,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:06,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 02:55:06,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:06,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:06,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:06,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:06,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:06,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:55:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:06,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:06,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:06,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:55:06,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:06,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:55:06,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:06,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:06,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:55:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:06,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:06,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:06,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:55:06,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:06,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:55:06,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:06,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:06,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:06,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:06,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:06,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:55:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:06,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:06,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:06,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:06,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:06,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:55:06,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:06,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:06,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:06,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:55:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:06,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:06,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:06,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:55:06,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:06,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:55:06,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:06,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:06,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:06,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:06,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:06,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:55:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:06,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:06,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:06,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:55:06,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:06,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:55:06,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:06,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:55:06,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:06,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:55:06,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:55:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:55:07,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:55:07,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:55:07,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:07,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:55:07,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 02:55:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:55:07,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:55:07,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:55:07,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:55:07,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:07,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 02:55:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:07,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:55:07,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:55:07,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:07,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:07,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:07,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:07,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:55:07,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:07,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:07,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:07,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 02:55:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:55:07,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:55:07,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:55:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:55:07,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:55:07,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:55:07,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:55:07,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:55:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:55:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:07,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:55:07,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:55:07,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:07,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:55:07,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 02:55:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 02:55:07,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:55:07,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 02:55:07,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:55:07,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 02:55:07,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:55:07,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:55:07,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 02:55:07,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:55:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 02:55:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:55:07,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:55:07,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 02:55:07,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:55:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:55:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:55:07,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:55:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:55:07,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 02:55:07,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:55:07,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:55:07,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:55:07,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:55:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:55:07,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:55:07,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:55:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:55:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:55:07,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:07,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:55:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:55:07,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:55:07,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:07,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:55:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:07,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-09-25 02:55:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:07,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:55:07,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:07,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:55:07,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:07,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:55:07,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-25 02:55:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:55:07,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:55:07,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:55:07,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:55:07,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:55:07,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:55:07,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:55:07,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:55:07,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:55:07,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:55:07,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:55:07,733 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 02:55:07,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407275666] [2020-09-25 02:55:07,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:55:07,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 02:55:07,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082836681] [2020-09-25 02:55:07,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 02:55:07,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:55:07,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 02:55:07,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:55:07,738 INFO L87 Difference]: Start difference. First operand 645 states and 751 transitions. Second operand 17 states. [2020-09-25 02:55:08,295 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:55:09,687 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:55:10,326 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:10,689 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:11,065 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:11,416 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:11,775 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:12,099 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:12,416 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:12,788 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:13,181 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:13,530 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:13,877 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:55:14,264 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:55:14,666 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:55:15,050 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:15,384 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:55:15,712 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:16,044 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:55:16,437 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:16,824 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:55:17,152 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:55:22,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:55:22,821 INFO L93 Difference]: Finished difference Result 1718 states and 2324 transitions. [2020-09-25 02:55:22,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-25 02:55:22,822 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 253 [2020-09-25 02:55:22,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:55:22,838 INFO L225 Difference]: With dead ends: 1718 [2020-09-25 02:55:22,839 INFO L226 Difference]: Without dead ends: 1183 [2020-09-25 02:55:22,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 988 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=675, Invalid=2865, Unknown=0, NotChecked=0, Total=3540 [2020-09-25 02:55:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states.