/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:01:22,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:01:22,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:01:22,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:01:22,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:01:22,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:01:22,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:01:22,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:01:22,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:01:22,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:01:22,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:01:22,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:01:22,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:01:22,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:01:22,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:01:22,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:01:22,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:01:22,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:01:22,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:01:22,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:01:22,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:01:22,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:01:22,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:01:22,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:01:22,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:01:22,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:01:22,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:01:22,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:01:22,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:01:22,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:01:22,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:01:22,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:01:22,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:01:22,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:01:22,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:01:22,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:01:22,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:01:22,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:01:22,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:01:22,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:01:22,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:01:22,927 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 04:01:22,980 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:01:22,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:01:22,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:01:22,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:01:22,983 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:01:22,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:01:22,984 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:01:22,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:01:22,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:01:22,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:01:22,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:01:22,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:01:22,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:01:22,987 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:01:22,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:01:22,987 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:01:22,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:01:22,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:01:22,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:01:22,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:01:22,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:01:22,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:01:22,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:01:22,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:01:22,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:01:22,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:01:22,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:01:22,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:01:22,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:01:22,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:01:23,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:01:23,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:01:23,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:01:23,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:01:23,491 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:01:23,493 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-25 04:01:23,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2b8ab2c26/47881a2a744a435a9b085331d44f7f85/FLAG1e109b683 [2020-09-25 04:01:24,223 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:01:24,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-09-25 04:01:24,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2b8ab2c26/47881a2a744a435a9b085331d44f7f85/FLAG1e109b683 [2020-09-25 04:01:24,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2b8ab2c26/47881a2a744a435a9b085331d44f7f85 [2020-09-25 04:01:24,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:01:24,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:01:24,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:01:24,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:01:24,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:01:24,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:01:24" (1/1) ... [2020-09-25 04:01:24,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:24, skipping insertion in model container [2020-09-25 04:01:24,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:01:24" (1/1) ... [2020-09-25 04:01:24,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:01:24,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:01:25,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:01:25,112 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:01:25,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:01:25,238 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:01:25,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25 WrapperNode [2020-09-25 04:01:25,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:01:25,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:01:25,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:01:25,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:01:25,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25" (1/1) ... [2020-09-25 04:01:25,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25" (1/1) ... [2020-09-25 04:01:25,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25" (1/1) ... [2020-09-25 04:01:25,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25" (1/1) ... [2020-09-25 04:01:25,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25" (1/1) ... [2020-09-25 04:01:25,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25" (1/1) ... [2020-09-25 04:01:25,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25" (1/1) ... [2020-09-25 04:01:25,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:01:25,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:01:25,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:01:25,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:01:25,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25" (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 04:01:25,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:01:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:01:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:01:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:01:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:01:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:01:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:01:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:01:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:01:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:01:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:01:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 04:01:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:01:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:01:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:01:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:01:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:01:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:01:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:01:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 04:01:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:01:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:01:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:01:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:01:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:01:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:01:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:01:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:01:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 04:01:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:01:25,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:01:25,429 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:01:25,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:01:25,429 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:01:25,429 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:01:25,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:01:25,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:01:25,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:01:25,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:01:25,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:01:25,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:01:25,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:01:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:01:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:01:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:01:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:01:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:01:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:01:25,432 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:01:25,432 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:01:25,432 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:01:25,432 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:01:25,432 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:01:25,432 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:01:25,433 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:01:25,433 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:01:25,433 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:01:25,433 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:01:25,433 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:01:25,433 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 04:01:25,434 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:01:25,434 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:01:25,434 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:01:25,434 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:01:25,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:01:25,434 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:01:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:01:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:01:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 04:01:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 04:01:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 04:01:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:01:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:01:25,436 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:01:25,436 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:01:25,436 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:01:25,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:01:25,436 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:01:25,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:01:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:01:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:01:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:01:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:01:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:01:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:01:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:01:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:01:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:01:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:01:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:01:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:01:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:01:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:01:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:01:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:01:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:01:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:01:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:01:26,646 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:01:26,647 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:01:26,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:01:26 BoogieIcfgContainer [2020-09-25 04:01:26,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:01:26,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:01:26,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:01:26,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:01:26,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:01:24" (1/3) ... [2020-09-25 04:01:26,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c58cd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:01:26, skipping insertion in model container [2020-09-25 04:01:26,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:01:25" (2/3) ... [2020-09-25 04:01:26,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c58cd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:01:26, skipping insertion in model container [2020-09-25 04:01:26,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:01:26" (3/3) ... [2020-09-25 04:01:26,665 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-09-25 04:01:26,677 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:01:26,689 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:01:26,712 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:01:26,744 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:01:26,744 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:01:26,744 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:01:26,745 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:01:26,745 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:01:26,745 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:01:26,745 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:01:26,745 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:01:26,776 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-25 04:01:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:01:26,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:26,797 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 04:01:26,798 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:26,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:26,806 INFO L82 PathProgramCache]: Analyzing trace with hash 2046718669, now seen corresponding path program 1 times [2020-09-25 04:01:26,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:26,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851095478] [2020-09-25 04:01:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:27,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:27,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:28,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:29,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:31,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:32,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:32,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:01:32,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:01:32,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 04:01:32,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:32,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:32,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:01:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:01:32,772 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:32,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:32,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:32,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:32,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-25 04:01:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:32,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:33,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:33,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:33,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:33,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:33,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:33,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:01:33,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:33,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:33,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:33,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:33,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:33,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:33,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:33,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:33,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:33,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:33,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:33,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:01:33,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:33,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:33,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:33,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:33,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:33,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:33,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:33,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:33,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:33,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:01:33,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:33,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:33,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:33,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:33,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:33,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:33,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:33,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:33,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:33,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:33,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:33,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:33,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:33,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:33,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:33,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:01:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:33,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:33,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:33,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:33,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:33,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:33,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:33,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:33,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:01:33,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:01:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:33,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:33,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:33,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:33,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:33,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:33,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:33,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:33,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:33,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:33,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:33,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:33,164 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 04:01:33,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851095478] [2020-09-25 04:01:33,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:33,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:01:33,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838544816] [2020-09-25 04:01:33,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:01:33,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:33,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:01:33,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:01:33,203 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 3 states. [2020-09-25 04:01:34,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:34,846 INFO L93 Difference]: Finished difference Result 545 states and 652 transitions. [2020-09-25 04:01:34,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:01:34,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:01:34,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:34,870 INFO L225 Difference]: With dead ends: 545 [2020-09-25 04:01:34,870 INFO L226 Difference]: Without dead ends: 332 [2020-09-25 04:01:34,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:01:34,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-25 04:01:34,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 287. [2020-09-25 04:01:34,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-09-25 04:01:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 316 transitions. [2020-09-25 04:01:34,996 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 316 transitions. Word has length 142 [2020-09-25 04:01:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:34,997 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 316 transitions. [2020-09-25 04:01:34,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:01:34,997 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 316 transitions. [2020-09-25 04:01:35,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:01:35,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:35,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:35,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:01:35,004 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:35,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:35,004 INFO L82 PathProgramCache]: Analyzing trace with hash 69871948, now seen corresponding path program 1 times [2020-09-25 04:01:35,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:35,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249061619] [2020-09-25 04:01:35,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:35,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:35,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:36,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:37,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:39,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:40,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:40,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:01:40,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:01:40,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-25 04:01:40,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:40,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:01:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:01:40,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:40,519 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:40,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:40,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:40,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:40,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:40,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 04:01:40,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:40,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:40,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:40,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:40,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:40,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:40,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:40,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:40,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:40,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:40,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:40,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:40,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:40,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:40,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:40,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:40,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:40,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:40,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:40,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:40,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:40,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:40,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:40,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:40,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:40,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:40,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:40,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:40,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:40,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:40,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:40,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:40,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:40,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:40,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:40,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:40,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:40,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:40,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:40,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:40,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:40,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:01:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:40,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:40,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:40,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:40,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:01:40,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:40,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:40,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:40,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:40,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:40,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:40,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:01:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:40,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:40,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:40,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:40,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:40,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:40,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:40,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:40,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:40,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:40,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:40,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:01:40,787 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 04:01:40,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249061619] [2020-09-25 04:01:40,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:40,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:01:40,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478621359] [2020-09-25 04:01:40,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:01:40,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:40,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:01:40,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:01:40,793 INFO L87 Difference]: Start difference. First operand 287 states and 316 transitions. Second operand 4 states. [2020-09-25 04:01:41,402 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:42,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:42,588 INFO L93 Difference]: Finished difference Result 456 states and 519 transitions. [2020-09-25 04:01:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:01:42,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:01:42,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:42,594 INFO L225 Difference]: With dead ends: 456 [2020-09-25 04:01:42,594 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 04:01:42,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:01:42,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 04:01:42,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 277. [2020-09-25 04:01:42,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 04:01:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 303 transitions. [2020-09-25 04:01:42,647 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 303 transitions. Word has length 143 [2020-09-25 04:01:42,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:42,648 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 303 transitions. [2020-09-25 04:01:42,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:01:42,648 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 303 transitions. [2020-09-25 04:01:42,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 04:01:42,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:42,651 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] [2020-09-25 04:01:42,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:01:42,651 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:42,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:42,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1405476844, now seen corresponding path program 1 times [2020-09-25 04:01:42,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:42,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466541447] [2020-09-25 04:01:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:42,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:43,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:44,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:44,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:47,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:47,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 04:01:47,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:01:47,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 04:01:47,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:47,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:47,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:01:47,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:01:47,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:01:47,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:48,112 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:48,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:48,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:48,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:48,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:48,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:48,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 04:01:48,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:48,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:48,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:48,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:48,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:48,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:48,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:48,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:48,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:48,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:48,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:48,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:48,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:48,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:48,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:48,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:48,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:48,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:48,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:48,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:48,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:48,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:48,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:48,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:48,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:48,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:48,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:48,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:48,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:48,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:48,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:48,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:48,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:48,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:48,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:48,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:48,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:48,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:48,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:48,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:48,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:48,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:48,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:48,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:48,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:01:48,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:01:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:48,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:48,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:48,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:48,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:48,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:01:48,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:48,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:01:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:48,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:01:48,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:01:48,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 04:01:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:48,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:48,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:48,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:48,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:48,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:01:48,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:48,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:01:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:48,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:01:48,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:48,441 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 04:01:48,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466541447] [2020-09-25 04:01:48,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:48,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:01:48,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711431402] [2020-09-25 04:01:48,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:01:48,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:48,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:01:48,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:01:48,446 INFO L87 Difference]: Start difference. First operand 277 states and 303 transitions. Second operand 8 states. [2020-09-25 04:01:48,961 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:01:50,495 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 04:01:51,148 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 191 [2020-09-25 04:01:51,496 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:51,826 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:01:52,125 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:52,819 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:01:53,147 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 04:01:53,513 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:53,914 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:01:54,762 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 04:01:55,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:55,738 INFO L93 Difference]: Finished difference Result 584 states and 693 transitions. [2020-09-25 04:01:55,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 04:01:55,739 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-25 04:01:55,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:55,744 INFO L225 Difference]: With dead ends: 584 [2020-09-25 04:01:55,744 INFO L226 Difference]: Without dead ends: 417 [2020-09-25 04:01:55,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:01:55,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-25 04:01:55,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 369. [2020-09-25 04:01:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-09-25 04:01:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 411 transitions. [2020-09-25 04:01:55,856 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 411 transitions. Word has length 152 [2020-09-25 04:01:55,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:55,857 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 411 transitions. [2020-09-25 04:01:55,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:01:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 411 transitions. [2020-09-25 04:01:55,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 04:01:55,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:55,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:55,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:01:55,861 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:55,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:55,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1051506646, now seen corresponding path program 1 times [2020-09-25 04:01:55,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:55,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452478350] [2020-09-25 04:01:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:55,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:56,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:00,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:00,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 04:02:00,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:02:00,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 04:02:00,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:00,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:00,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:02:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-25 04:02:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:02:00,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,212 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:02:01,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:02:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:02:01,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 04:02:01,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:01,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:02:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:01,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:02:01,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:01,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:01,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:02:01,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:02:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:01,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:01,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:02:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:01,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:02:01,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:01,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:02:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:02:01,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:01,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:01,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:01,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:02:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 04:02:01,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 04:02:01,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:02:01,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 04:02:01,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:02:01,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:02:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 04:02:01,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 04:02:01,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:02:01,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 04:02:01,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:02:01,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:02:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:02:01,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 04:02:01,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:02:01,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:02:01,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:02:01,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:02:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:02:01,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 04:02:01,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:02:01,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:02:01,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:02:01,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:02:01,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:02:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:02:01,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:02:01,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:02:01,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:02:01,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:02:01,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:02:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:02:01,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:02:01,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:02:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:01,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 04:02:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:01,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:01,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:01,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:01,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:02:01,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 04:02:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:01,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:01,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:01,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:02:01,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:02:01,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:02:01,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:01,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:02:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:02:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:02:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:02:01,796 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 04:02:01,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452478350] [2020-09-25 04:02:01,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:02:01,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:02:01,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004789565] [2020-09-25 04:02:01,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:02:01,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:02:01,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:02:01,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:02:01,799 INFO L87 Difference]: Start difference. First operand 369 states and 411 transitions. Second operand 8 states. [2020-09-25 04:02:03,031 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:02:03,347 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:02:03,677 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:02:03,994 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:02:04,302 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:02:05,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:02:05,450 INFO L93 Difference]: Finished difference Result 707 states and 848 transitions. [2020-09-25 04:02:05,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:02:05,451 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 195 [2020-09-25 04:02:05,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:02:05,456 INFO L225 Difference]: With dead ends: 707 [2020-09-25 04:02:05,458 INFO L226 Difference]: Without dead ends: 448 [2020-09-25 04:02:05,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:02:05,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-09-25 04:02:05,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 378. [2020-09-25 04:02:05,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-09-25 04:02:05,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 420 transitions. [2020-09-25 04:02:05,545 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 420 transitions. Word has length 195 [2020-09-25 04:02:05,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:02:05,546 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 420 transitions. [2020-09-25 04:02:05,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:02:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 420 transitions. [2020-09-25 04:02:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 04:02:05,548 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:02:05,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:05,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:02:05,549 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:02:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:02:05,550 INFO L82 PathProgramCache]: Analyzing trace with hash 637875254, now seen corresponding path program 1 times [2020-09-25 04:02:05,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:02:05,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237071925] [2020-09-25 04:02:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:02:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:02:05,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:06,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:02:10,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:02:10,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 04:02:10,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:02:10,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 04:02:10,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:02:10,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:02:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:02:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-25 04:02:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:02:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1