/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:21:00,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:21:00,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:21:00,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:21:00,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:21:00,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:21:00,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:21:00,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:21:00,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:21:00,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:21:00,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:21:00,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:21:00,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:21:00,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:21:00,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:21:00,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:21:00,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:21:00,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:21:00,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:21:00,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:21:00,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:21:00,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:21:00,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:21:00,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:21:00,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:21:00,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:21:00,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:21:00,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:21:00,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:21:00,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:21:00,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:21:00,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:21:00,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:21:00,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:21:00,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:21:00,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:21:00,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:21:00,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:21:00,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:21:00,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:21:00,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:21:00,930 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:21:00,978 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:21:00,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:21:00,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:21:00,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:21:00,981 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:21:00,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:21:00,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:21:00,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:21:00,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:21:00,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:21:00,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:21:00,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:21:00,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:21:00,985 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:21:00,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:21:00,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:21:00,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:21:00,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:21:00,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:21:00,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:21:00,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:21:00,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:21:00,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:21:00,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:21:00,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:21:00,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:21:00,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:21:00,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:21:00,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:21:00,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:21:01,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:21:01,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:21:01,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:21:01,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:21:01,522 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:21:01,523 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product20.cil.c [2020-09-25 05:21:01,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a50ded66b/6b20869deec448299ef8b45781511946/FLAG3080e1e44 [2020-09-25 05:21:02,268 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:21:02,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product20.cil.c [2020-09-25 05:21:02,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a50ded66b/6b20869deec448299ef8b45781511946/FLAG3080e1e44 [2020-09-25 05:21:02,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a50ded66b/6b20869deec448299ef8b45781511946 [2020-09-25 05:21:02,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:21:02,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:21:02,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:21:02,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:21:02,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:21:02,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:21:02" (1/1) ... [2020-09-25 05:21:02,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:02, skipping insertion in model container [2020-09-25 05:21:02,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:21:02" (1/1) ... [2020-09-25 05:21:02,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:21:02,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:21:03,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:21:03,101 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:21:03,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:21:03,288 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:21:03,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03 WrapperNode [2020-09-25 05:21:03,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:21:03,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:21:03,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:21:03,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:21:03,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03" (1/1) ... [2020-09-25 05:21:03,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03" (1/1) ... [2020-09-25 05:21:03,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03" (1/1) ... [2020-09-25 05:21:03,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03" (1/1) ... [2020-09-25 05:21:03,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03" (1/1) ... [2020-09-25 05:21:03,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03" (1/1) ... [2020-09-25 05:21:03,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03" (1/1) ... [2020-09-25 05:21:03,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:21:03,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:21:03,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:21:03,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:21:03,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:21:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:21:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:21:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:21:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:21:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:21:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:21:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:21:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:21:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:21:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:21:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:21:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:21:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:21:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:21:03,491 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:21:03,492 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:21:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 05:21:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 05:21:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 05:21:03,493 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:21:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:21:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:21:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:21:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:21:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:21:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:21:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:21:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:21:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:21:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:21:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:21:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:21:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:21:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:21:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:21:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:21:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:21:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:21:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:21:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:21:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:21:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:21:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:21:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:21:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:21:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:21:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:21:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:21:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:21:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:21:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:21:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:21:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:21:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:21:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:21:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:21:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:21:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:21:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:21:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:21:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:21:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:21:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:21:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:21:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:21:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:21:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:21:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:21:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:21:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:21:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 05:21:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 05:21:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 05:21:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:21:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:21:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:21:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:21:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:21:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:21:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:21:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:21:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:21:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:21:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:21:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:21:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:21:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:21:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:21:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:21:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:21:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:21:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:21:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:21:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:21:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:21:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:21:04,716 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:21:04,716 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:21:04,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:21:04 BoogieIcfgContainer [2020-09-25 05:21:04,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:21:04,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:21:04,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:21:04,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:21:04,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:21:02" (1/3) ... [2020-09-25 05:21:04,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262f2c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:21:04, skipping insertion in model container [2020-09-25 05:21:04,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:21:03" (2/3) ... [2020-09-25 05:21:04,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262f2c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:21:04, skipping insertion in model container [2020-09-25 05:21:04,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:21:04" (3/3) ... [2020-09-25 05:21:04,735 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product20.cil.c [2020-09-25 05:21:04,747 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:21:04,758 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:21:04,782 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:21:04,817 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:21:04,818 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:21:04,818 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:21:04,818 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:21:04,818 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:21:04,818 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:21:04,819 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:21:04,819 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:21:04,850 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-25 05:21:04,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 05:21:04,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:21:04,871 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:21:04,871 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:21:04,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:21:04,883 INFO L82 PathProgramCache]: Analyzing trace with hash -502904586, now seen corresponding path program 1 times [2020-09-25 05:21:04,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:21:04,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856004641] [2020-09-25 05:21:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:21:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:05,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:05,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:07,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:10,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:10,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 05:21:10,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:21:10,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 05:21:10,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:10,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:21:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:10,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 05:21:10,918 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:10,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:10,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:21:11,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 05:21:11,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:11,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:21:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:11,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:11,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:21:11,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:21:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:11,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:11,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:21:11,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:11,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:21:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:11,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:11,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:21:11,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:11,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:21:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:11,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:11,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:11,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:11,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:21:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:11,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:11,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:11,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:11,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:21:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:11,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:21:11,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:21:11,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:21:11,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:11,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:11,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:11,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 05:21:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:11,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:11,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:21:11,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 05:21:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:11,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:11,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:11,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:11,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:11,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:11,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:11,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:11,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:11,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:11,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:11,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 05:21:11,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856004641] [2020-09-25 05:21:11,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:21:11,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:21:11,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565431864] [2020-09-25 05:21:11,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:21:11,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:21:11,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:21:11,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:21:11,356 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-09-25 05:21:12,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:21:12,829 INFO L93 Difference]: Finished difference Result 456 states and 539 transitions. [2020-09-25 05:21:12,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:21:12,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 05:21:12,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:21:12,864 INFO L225 Difference]: With dead ends: 456 [2020-09-25 05:21:12,865 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 05:21:12,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:21:12,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 05:21:13,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 247. [2020-09-25 05:21:13,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 05:21:13,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 268 transitions. [2020-09-25 05:21:13,062 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 268 transitions. Word has length 160 [2020-09-25 05:21:13,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:21:13,066 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 268 transitions. [2020-09-25 05:21:13,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:21:13,066 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 268 transitions. [2020-09-25 05:21:13,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 05:21:13,085 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:21:13,085 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:21:13,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:21:13,086 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:21:13,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:21:13,086 INFO L82 PathProgramCache]: Analyzing trace with hash -445941209, now seen corresponding path program 1 times [2020-09-25 05:21:13,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:21:13,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263025192] [2020-09-25 05:21:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:21:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:13,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:13,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:14,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:15,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:16,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 05:21:18,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:21:18,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 05:21:18,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:21:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:21:18,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,565 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:18,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:21:18,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 05:21:18,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:21:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:18,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:18,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:18,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:21:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:18,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:18,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:21:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:18,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:18,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:18,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:21:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:18,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:21:18,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:18,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:21:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:18,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:18,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:18,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:21:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:21:18,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:21:18,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:21:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:18,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:18,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 05:21:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:18,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:18,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 05:21:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:18,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:18,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:18,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:18,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:18,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:18,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:18,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:18,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:18,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 05:21:18,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263025192] [2020-09-25 05:21:18,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:21:18,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:21:18,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492027573] [2020-09-25 05:21:18,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:21:18,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:21:18,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:21:18,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:21:18,870 INFO L87 Difference]: Start difference. First operand 247 states and 268 transitions. Second operand 5 states. [2020-09-25 05:21:19,497 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:21:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:21:20,502 INFO L93 Difference]: Finished difference Result 375 states and 423 transitions. [2020-09-25 05:21:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:21:20,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 05:21:20,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:21:20,507 INFO L225 Difference]: With dead ends: 375 [2020-09-25 05:21:20,508 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 05:21:20,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:21:20,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 05:21:20,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 237. [2020-09-25 05:21:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-25 05:21:20,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 255 transitions. [2020-09-25 05:21:20,554 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 255 transitions. Word has length 161 [2020-09-25 05:21:20,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:21:20,555 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 255 transitions. [2020-09-25 05:21:20,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:21:20,555 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 255 transitions. [2020-09-25 05:21:20,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 05:21:20,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:21:20,558 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:21:20,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:21:20,558 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:21:20,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:21:20,559 INFO L82 PathProgramCache]: Analyzing trace with hash -292418968, now seen corresponding path program 1 times [2020-09-25 05:21:20,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:21:20,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158625639] [2020-09-25 05:21:20,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:21:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:20,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:20,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:21,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:22,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:25,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:25,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 05:21:25,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:21:25,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 05:21:25,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:25,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:25,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:25,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:21:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 05:21:25,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,027 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:26,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:21:26,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 05:21:26,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:26,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:21:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:26,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:26,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:26,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:21:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:26,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:26,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:26,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:21:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:26,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:21:26,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:21:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:26,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:26,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:26,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:26,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:26,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:21:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:26,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:26,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:26,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:21:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:26,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:21:26,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:26,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:21:26,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 05:21:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:21:26,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:21:26,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:21:26,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:26,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:21:26,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:26,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:26,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:26,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:21:26,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 05:21:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:26,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:21:26,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:26,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 05:21:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:26,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:26,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:26,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:26,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:26,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:26,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:26,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:26,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:21:26,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:26,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 05:21:26,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158625639] [2020-09-25 05:21:26,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:21:26,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:21:26,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267231969] [2020-09-25 05:21:26,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:21:26,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:21:26,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:21:26,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:21:26,405 INFO L87 Difference]: Start difference. First operand 237 states and 255 transitions. Second operand 6 states. [2020-09-25 05:21:26,973 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:28,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:21:28,498 INFO L93 Difference]: Finished difference Result 555 states and 645 transitions. [2020-09-25 05:21:28,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:21:28,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 05:21:28,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:21:28,508 INFO L225 Difference]: With dead ends: 555 [2020-09-25 05:21:28,508 INFO L226 Difference]: Without dead ends: 433 [2020-09-25 05:21:28,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:21:28,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-25 05:21:28,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 349. [2020-09-25 05:21:28,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-25 05:21:28,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 386 transitions. [2020-09-25 05:21:28,614 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 386 transitions. Word has length 174 [2020-09-25 05:21:28,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:21:28,616 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 386 transitions. [2020-09-25 05:21:28,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:21:28,616 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 386 transitions. [2020-09-25 05:21:28,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 05:21:28,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:21:28,619 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:21:28,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:21:28,619 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:21:28,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:21:28,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1020289759, now seen corresponding path program 1 times [2020-09-25 05:21:28,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:21:28,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494846197] [2020-09-25 05:21:28,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:21:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:28,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:28,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:29,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:31,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:33,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 05:21:33,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:21:33,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 05:21:33,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:33,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:21:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 05:21:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 05:21:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,045 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:34,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:21:34,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 05:21:34,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:34,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:34,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:21:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:34,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:34,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:34,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:21:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:34,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:21:34,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:34,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:34,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:21:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:34,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:21:34,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:34,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:21:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:21:34,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:21:34,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:34,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:21:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:21:34,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:34,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:34,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 05:21:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:21:34,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:21:34,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:21:34,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:21:34,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:21:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 05:21:34,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:21:34,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:34,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 05:21:34,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:21:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:34,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:21:34,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:21:34,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:21:34,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 05:21:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:34,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:21:34,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:21:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:21:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 05:21:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:21:34,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:21:34,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:21:34,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:21:34,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:21:34,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:21:34,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:21:34,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:21:34,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:21:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:21:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:21:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:21:34,434 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 05:21:34,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494846197] [2020-09-25 05:21:34,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:21:34,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:21:34,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478171618] [2020-09-25 05:21:34,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:21:34,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:21:34,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:21:34,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:21:34,440 INFO L87 Difference]: Start difference. First operand 349 states and 386 transitions. Second operand 10 states. [2020-09-25 05:21:35,188 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:36,488 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:21:36,780 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 05:21:37,700 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:21:38,051 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 05:21:38,371 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 05:21:38,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:21:38,442 INFO L93 Difference]: Finished difference Result 580 states and 688 transitions. [2020-09-25 05:21:38,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:21:38,442 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 05:21:38,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:21:38,444 INFO L225 Difference]: With dead ends: 580 [2020-09-25 05:21:38,445 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 05:21:38,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:21:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 05:21:38,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 05:21:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 05:21:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 05:21:38,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-09-25 05:21:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:21:38,451 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 05:21:38,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:21:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 05:21:38,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 05:21:38,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:21:38,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 05:21:38,646 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:38,822 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:39,033 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:39,343 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 6 [2020-09-25 05:21:39,506 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:39,681 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:39,839 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:40,008 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:40,164 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:40,341 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:40,677 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 05:21:41,001 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 05:21:41,339 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 05:21:41,644 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 05:21:41,797 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:21:41,966 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:42,136 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:42,298 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:42,458 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:42,615 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:42,763 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:42,919 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:43,072 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:43,225 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:43,374 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:43,526 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:43,683 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:43,831 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:43,982 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:44,138 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:44,291 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:44,444 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:44,597 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:44,753 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:44,901 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:45,054 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:45,161 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 6 [2020-09-25 05:21:45,315 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:45,469 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:45,623 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:45,779 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:45,932 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:46,081 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:46,243 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:46,395 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:46,498 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 6 [2020-09-25 05:21:46,665 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:46,818 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:46,971 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:47,079 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 6 [2020-09-25 05:21:47,245 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:47,403 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:47,552 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:47,658 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 6 [2020-09-25 05:21:47,811 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:47,959 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:21:48,114 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:48,269 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:48,528 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 6 [2020-09-25 05:21:48,692 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:21:48,844 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191