/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_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:05:38,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:05:38,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:05:38,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:05:38,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:05:38,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:05:38,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:05:38,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:05:38,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:05:38,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:05:38,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:05:38,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:05:38,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:05:38,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:05:38,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:05:38,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:05:38,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:05:38,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:05:38,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:05:38,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:05:38,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:05:38,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:05:38,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:05:38,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:05:38,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:05:38,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:05:38,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:05:38,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:05:38,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:05:38,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:05:38,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:05:38,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:05:38,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:05:38,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:05:38,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:05:38,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:05:38,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:05:38,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:05:38,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:05:38,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:05:38,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:05:38,927 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 04:05:38,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:05:38,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:05:38,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:05:38,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:05:38,979 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:05:38,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:05:38,979 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:05:38,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:05:38,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:05:38,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:05:38,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:05:38,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:05:38,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:05:38,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:05:38,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:05:38,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:05:38,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:05:38,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:05:38,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:05:38,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:05:38,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:05:38,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:05:38,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:05:38,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:05:38,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:05:38,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:05:38,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:05:38,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:05:38,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:05:38,986 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 04:05:39,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:05:39,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:05:39,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:05:39,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:05:39,499 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:05:39,500 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 04:05:39,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c72da90ad/da3b5e4b0c6b460fa0121f600e003e66/FLAG1f1f84c6f [2020-09-25 04:05:40,170 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:05:40,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 04:05:40,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c72da90ad/da3b5e4b0c6b460fa0121f600e003e66/FLAG1f1f84c6f [2020-09-25 04:05:40,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c72da90ad/da3b5e4b0c6b460fa0121f600e003e66 [2020-09-25 04:05:40,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:05:40,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:05:40,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:05:40,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:05:40,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:05:40,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:05:40" (1/1) ... [2020-09-25 04:05:40,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:40, skipping insertion in model container [2020-09-25 04:05:40,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:05:40" (1/1) ... [2020-09-25 04:05:40,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:05:40,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:05:41,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:05:41,038 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:05:41,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:05:41,262 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:05:41,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41 WrapperNode [2020-09-25 04:05:41,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:05:41,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:05:41,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:05:41,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:05:41,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41" (1/1) ... [2020-09-25 04:05:41,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41" (1/1) ... [2020-09-25 04:05:41,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41" (1/1) ... [2020-09-25 04:05:41,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41" (1/1) ... [2020-09-25 04:05:41,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41" (1/1) ... [2020-09-25 04:05:41,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41" (1/1) ... [2020-09-25 04:05:41,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41" (1/1) ... [2020-09-25 04:05:41,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:05:41,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:05:41,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:05:41,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:05:41,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41" (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 04:05:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:05:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:05:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:05:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:05:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:05:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:05:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:05:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:05:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:05:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:05:41,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:05:41,430 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:05:41,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:05:41,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:05:41,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:05:41,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:05:41,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:05:41,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:05:41,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:05:41,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:05:41,432 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:05:41,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:05:41,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:05:41,432 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:05:41,432 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:05:41,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:05:41,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:05:41,433 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:05:41,433 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:05:41,433 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:05:41,433 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:05:41,433 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:05:41,434 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:05:41,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:05:41,434 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:05:41,434 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:05:41,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:05:41,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:05:41,435 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:05:41,435 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:05:41,435 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:05:41,435 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:05:41,435 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:05:41,435 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:05:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:05:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:05:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:05:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:05:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:05:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:05:41,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:05:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:05:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:05:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:05:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:05:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:05:41,437 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:05:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:05:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:05:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:05:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:05:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:05:41,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:05:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:05:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:05:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:05:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:05:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:05:41,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:05:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:05:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:05:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:05:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:05:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:05:41,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:05:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:05:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:05:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:05:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:05:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:05:41,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:05:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:05:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:05:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:05:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:05:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:05:42,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:05:42,583 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:05:42,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:05:42 BoogieIcfgContainer [2020-09-25 04:05:42,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:05:42,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:05:42,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:05:42,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:05:42,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:05:40" (1/3) ... [2020-09-25 04:05:42,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a65367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:05:42, skipping insertion in model container [2020-09-25 04:05:42,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:05:41" (2/3) ... [2020-09-25 04:05:42,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a65367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:05:42, skipping insertion in model container [2020-09-25 04:05:42,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:05:42" (3/3) ... [2020-09-25 04:05:42,604 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-09-25 04:05:42,615 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:05:42,625 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:05:42,645 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:05:42,672 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:05:42,672 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:05:42,672 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:05:42,672 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:05:42,672 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:05:42,672 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:05:42,673 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:05:42,673 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:05:42,697 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-25 04:05:42,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 04:05:42,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:05:42,716 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] [2020-09-25 04:05:42,716 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:05:42,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:05:42,722 INFO L82 PathProgramCache]: Analyzing trace with hash 957582246, now seen corresponding path program 1 times [2020-09-25 04:05:42,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:05:42,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871020330] [2020-09-25 04:05:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:05:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:43,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:43,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:44,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:48,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:05:48,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:05:48,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 04:05:48,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:48,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:05:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:48,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:05:48,658 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:05:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:05:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:48,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:48,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:05:48,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 04:05:48,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:48,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:48,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:05:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:48,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:48,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:48,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:48,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:48,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:48,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:48,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:48,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:48,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:48,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:05:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:48,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:48,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:48,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:48,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:48,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:48,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:05:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:48,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:48,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:48,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:05:48,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:48,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:48,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:48,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:48,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:05:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:48,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:48,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:48,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:48,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:05:48,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:48,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:48,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:48,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:05:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:48,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:48,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:48,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:48,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:05:48,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:48,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:48,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:48,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:05:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:48,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:48,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:48,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:05:48,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:48,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:48,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:48,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:48,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:48,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:05:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:48,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:48,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:48,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:48,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:48,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:05:48,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:48,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:48,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:48,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:48,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:49,086 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 04:05:49,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871020330] [2020-09-25 04:05:49,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:05:49,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:05:49,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802568927] [2020-09-25 04:05:49,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:05:49,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:05:49,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:05:49,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:05:49,130 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-09-25 04:05:50,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:05:50,590 INFO L93 Difference]: Finished difference Result 427 states and 514 transitions. [2020-09-25 04:05:50,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:05:50,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 04:05:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:05:50,614 INFO L225 Difference]: With dead ends: 427 [2020-09-25 04:05:50,614 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 04:05:50,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 04:05:50,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 04:05:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-09-25 04:05:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 04:05:50,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 250 transitions. [2020-09-25 04:05:50,789 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 250 transitions. Word has length 153 [2020-09-25 04:05:50,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:05:50,792 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 250 transitions. [2020-09-25 04:05:50,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:05:50,792 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 250 transitions. [2020-09-25 04:05:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 04:05:50,803 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:05:50,804 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] [2020-09-25 04:05:50,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:05:50,805 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:05:50,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:05:50,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1482403721, now seen corresponding path program 1 times [2020-09-25 04:05:50,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:05:50,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642715804] [2020-09-25 04:05:50,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:05:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:50,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:51,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:52,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:55,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:55,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:05:55,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:05:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 04:05:55,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:55,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:05:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:05:55,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:05:55,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:56,210 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:05:56,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:05:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:56,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:56,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:56,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:05:56,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:56,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 04:05:56,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:56,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:56,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:05:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:56,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:56,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:56,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:56,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:56,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:56,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:56,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:56,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:56,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:05:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:56,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:56,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:56,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:56,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:56,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:56,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:56,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:56,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:56,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:05:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:56,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:56,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:56,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:56,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:56,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:05:56,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:56,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:56,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:56,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:05:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:56,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:56,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:56,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:05:56,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:56,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:05:56,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:56,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:56,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:56,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:05:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:56,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:56,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 04:05:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:56,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:56,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:56,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:56,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:56,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:56,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:56,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:56,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:56,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:56,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:05:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:56,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:56,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:56,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:56,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:56,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:05:56,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:56,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:56,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:56,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:56,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:05:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:56,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:56,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:05:56,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:05:56,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:05:56,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:05:56,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:05:56,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:05:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:05:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:05:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:05:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:05:56,445 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 04:05:56,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642715804] [2020-09-25 04:05:56,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:05:56,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:05:56,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323164838] [2020-09-25 04:05:56,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:05:56,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:05:56,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:05:56,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:05:56,450 INFO L87 Difference]: Start difference. First operand 230 states and 250 transitions. Second operand 4 states. [2020-09-25 04:05:57,288 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:05:58,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:05:58,083 INFO L93 Difference]: Finished difference Result 338 states and 381 transitions. [2020-09-25 04:05:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:05:58,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 04:05:58,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:05:58,088 INFO L225 Difference]: With dead ends: 338 [2020-09-25 04:05:58,089 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 04:05:58,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 04:05:58,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 04:05:58,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 220. [2020-09-25 04:05:58,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-25 04:05:58,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 237 transitions. [2020-09-25 04:05:58,131 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 237 transitions. Word has length 154 [2020-09-25 04:05:58,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:05:58,132 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 237 transitions. [2020-09-25 04:05:58,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:05:58,132 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 237 transitions. [2020-09-25 04:05:58,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 04:05:58,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:05:58,135 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] [2020-09-25 04:05:58,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:05:58,135 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:05:58,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:05:58,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1724777335, now seen corresponding path program 1 times [2020-09-25 04:05:58,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:05:58,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679465082] [2020-09-25 04:05:58,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:05:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:05:58,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:05:58,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:02,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:02,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 04:06:02,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:06:02,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4227 [2020-09-25 04:06:02,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:02,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:06:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 04:06:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 04:06:02,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:02,912 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:02,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:02,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:03,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:03,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:03,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:03,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-09-25 04:06:03,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:03,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:03,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:03,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:03,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 04:06:03,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:03,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:03,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:03,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:03,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:03,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:03,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:03,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:03,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:03,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:03,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:03,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:03,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:03,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:03,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:03,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:03,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:03,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:03,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:03,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:03,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:03,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:03,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:03,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:03,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:03,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:06:03,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:03,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:03,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:03,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:03,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:03,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:06:03,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:03,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:03,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:03,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:03,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:03,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:03,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:03,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:03,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:03,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:03,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:06:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:03,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:03,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:03,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:03,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:03,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:03,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:03,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:03,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:03,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:03,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:06:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:03,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:03,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:03,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:03,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:03,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:03,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:03,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:03,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:03,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:03,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 04:06:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:03,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:03,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:03,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:03,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:03,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:03,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:03,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:03,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:03,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:03,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:03,485 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 04:06:03,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679465082] [2020-09-25 04:06:03,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:03,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:06:03,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110476010] [2020-09-25 04:06:03,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:06:03,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:03,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:06:03,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:06:03,490 INFO L87 Difference]: Start difference. First operand 220 states and 237 transitions. Second operand 4 states. [2020-09-25 04:06:03,951 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:05,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:05,323 INFO L93 Difference]: Finished difference Result 484 states and 556 transitions. [2020-09-25 04:06:05,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:06:05,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 04:06:05,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:05,329 INFO L225 Difference]: With dead ends: 484 [2020-09-25 04:06:05,329 INFO L226 Difference]: Without dead ends: 374 [2020-09-25 04:06:05,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 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 04:06:05,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-09-25 04:06:05,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 324. [2020-09-25 04:06:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-09-25 04:06:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 359 transitions. [2020-09-25 04:06:05,397 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 359 transitions. Word has length 163 [2020-09-25 04:06:05,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:05,397 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 359 transitions. [2020-09-25 04:06:05,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:06:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 359 transitions. [2020-09-25 04:06:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 04:06:05,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:05,400 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] [2020-09-25 04:06:05,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:06:05,401 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:05,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:05,401 INFO L82 PathProgramCache]: Analyzing trace with hash 775852866, now seen corresponding path program 1 times [2020-09-25 04:06:05,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:05,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620549174] [2020-09-25 04:06:05,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:07,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:07,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 04:06:07,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:07,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2078 [2020-09-25 04:06:07,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:07,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:06:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 04:06:07,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 04:06:07,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:07,955 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:07,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:08,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-25 04:06:08,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 04:06:08,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:08,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:08,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:08,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:08,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:08,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:08,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:08,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:08,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:08,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:08,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:06:08,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:08,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:08,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:08,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:08,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:08,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:08,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:08,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:06:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:06:08,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:08,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:06:08,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:06:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:08,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:08,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:08,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:08,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:08,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:06:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:08,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:08,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:08,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:06:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:08,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:06:08,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:06:08,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:08,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:06:08,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 04:06:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:08,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:08,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:08,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:08,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:08,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:08,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:08,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:08,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:08,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:08,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:08,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:08,587 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 04:06:08,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620549174] [2020-09-25 04:06:08,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:08,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:06:08,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229494101] [2020-09-25 04:06:08,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:06:08,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:08,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:06:08,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:06:08,590 INFO L87 Difference]: Start difference. First operand 324 states and 359 transitions. Second operand 9 states. [2020-09-25 04:06:09,196 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:06:10,310 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:06:11,677 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 04:06:12,340 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 04:06:12,678 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:13,021 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:13,304 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:13,630 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:06:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:14,324 INFO L93 Difference]: Finished difference Result 887 states and 1086 transitions. [2020-09-25 04:06:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:06:14,325 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-25 04:06:14,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:14,333 INFO L225 Difference]: With dead ends: 887 [2020-09-25 04:06:14,333 INFO L226 Difference]: Without dead ends: 673 [2020-09-25 04:06:14,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:06:14,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2020-09-25 04:06:14,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 533. [2020-09-25 04:06:14,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-09-25 04:06:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 605 transitions. [2020-09-25 04:06:14,433 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 605 transitions. Word has length 171 [2020-09-25 04:06:14,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:14,434 INFO L479 AbstractCegarLoop]: Abstraction has 533 states and 605 transitions. [2020-09-25 04:06:14,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:06:14,434 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 605 transitions. [2020-09-25 04:06:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 04:06:14,450 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:14,450 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] [2020-09-25 04:06:14,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:06:14,451 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:14,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:14,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1677788292, now seen corresponding path program 1 times [2020-09-25 04:06:14,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:14,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125284773] [2020-09-25 04:06:14,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:14,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:14,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:17,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:18,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:19,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:19,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 04:06:19,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:06:19,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 04:06:19,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:19,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:06:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:06:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:06:19,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:19,853 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:06:19,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:06:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:19,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:19,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:19,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:06:19,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 04:06:19,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:19,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:06:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:20,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:20,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:20,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:06:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:20,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:20,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:20,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:06:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:20,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:20,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:20,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:20,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:20,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:06:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:20,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:06:20,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:20,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 04:06:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:06:20,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:06:20,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:20,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:06:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:06:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:06:20,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:06:20,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:06:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:06:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:06:20,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:06:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:06:20,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:06:20,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:06:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:06:20,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:06:20,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:06:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:20,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:06:20,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:20,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 04:06:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:20,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:06:20,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:20,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:20,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:20,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:06:20,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 04:06:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:20,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:20,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:06:20,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:06:20,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:06:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:06:20,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:06:20,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:06:20,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:06:20,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:06:20,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:06:20,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:06:20,283 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 04:06:20,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125284773] [2020-09-25 04:06:20,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:06:20,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:06:20,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357291176] [2020-09-25 04:06:20,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:06:20,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:06:20,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:06:20,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:06:20,290 INFO L87 Difference]: Start difference. First operand 533 states and 605 transitions. Second operand 7 states. [2020-09-25 04:06:21,415 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:06:21,647 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:06:23,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:06:23,901 INFO L93 Difference]: Finished difference Result 1391 states and 1692 transitions. [2020-09-25 04:06:23,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:06:23,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-09-25 04:06:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:06:23,909 INFO L225 Difference]: With dead ends: 1391 [2020-09-25 04:06:23,910 INFO L226 Difference]: Without dead ends: 968 [2020-09-25 04:06:23,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:06:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2020-09-25 04:06:24,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 887. [2020-09-25 04:06:24,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2020-09-25 04:06:24,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1024 transitions. [2020-09-25 04:06:24,032 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1024 transitions. Word has length 176 [2020-09-25 04:06:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:06:24,032 INFO L479 AbstractCegarLoop]: Abstraction has 887 states and 1024 transitions. [2020-09-25 04:06:24,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:06:24,032 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1024 transitions. [2020-09-25 04:06:24,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 04:06:24,037 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:24,037 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] [2020-09-25 04:06:24,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:06:24,038 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:24,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:24,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1861287888, now seen corresponding path program 1 times [2020-09-25 04:06:24,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:24,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109740877] [2020-09-25 04:06:24,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:06:24,104 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:06:24,104 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:06:24,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:06:24,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:06:24 BoogieIcfgContainer [2020-09-25 04:06:24,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:06:24,139 INFO L168 Benchmark]: Toolchain (without parser) took 43662.67 ms. Allocated memory was 147.8 MB in the beginning and 693.6 MB in the end (delta: 545.8 MB). Free memory was 101.9 MB in the beginning and 158.1 MB in the end (delta: -56.2 MB). Peak memory consumption was 489.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:24,140 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 04:06:24,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.40 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 174.8 MB in the end (delta: -73.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:24,141 INFO L168 Benchmark]: Boogie Preprocessor took 92.54 ms. Allocated memory is still 204.5 MB. Free memory was 174.8 MB in the beginning and 170.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:24,142 INFO L168 Benchmark]: RCFGBuilder took 1236.57 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 170.8 MB in the beginning and 179.6 MB in the end (delta: -8.8 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:24,143 INFO L168 Benchmark]: TraceAbstraction took 41542.59 ms. Allocated memory was 235.4 MB in the beginning and 693.6 MB in the end (delta: 458.2 MB). Free memory was 179.6 MB in the beginning and 158.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 479.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:06:24,147 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 779.40 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 174.8 MB in the end (delta: -73.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.54 ms. Allocated memory is still 204.5 MB. Free memory was 174.8 MB in the beginning and 170.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1236.57 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 170.8 MB in the beginning and 179.6 MB in the end (delta: -8.8 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41542.59 ms. Allocated memory was 235.4 MB in the beginning and 693.6 MB in the end (delta: 458.2 MB). Free memory was 179.6 MB in the beginning and 158.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 479.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L165] int retValue_acc ; [L166] int tmp ; [L170] FCALL select_helpers() [L171] FCALL select_features() [L172] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L172] RET, EXPR valid_product() [L172] tmp = valid_product() [L174] COND TRUE \read(tmp) [L176] FCALL setup() [L177] CALL runTest() [L159] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) [L799] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND TRUE \read(systemActive) [L612] CALL processEnvironment() [L632] int tmp ; [L635] COND FALSE !(\read(pumpRunning)) [L650] FCALL processEnvironment__wrappee__base() [L612] RET processEnvironment() [L618] CALL __utac_acc__Specification3_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L564] CALL, EXPR isMethaneLevelCritical() [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] return (retValue_acc); [L564] RET, EXPR isMethaneLevelCritical() [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L570] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L570] RET, EXPR getWaterLevel() [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 [L574] CALL, EXPR isPumpRunning() [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] return (retValue_acc); [L574] RET, EXPR isPumpRunning() [L574] tmp___1 = isPumpRunning() [L576] COND FALSE !(\read(tmp___1)) [L580] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 596 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1226 SDtfs, 1686 SDslu, 1142 SDs, 0 SdLazy, 2578 SolverSat, 579 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=887occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 346 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 25.4s InterpolantComputationTime, 993 NumberOfCodeBlocks, 993 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 812 ConstructedInterpolants, 0 QuantifiedInterpolants, 325120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...