/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:46:20,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:46:20,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:46:20,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:46:20,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:46:20,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:46:20,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:46:20,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:46:20,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:46:20,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:46:20,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:46:20,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:46:20,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:46:20,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:46:20,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:46:20,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:46:20,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:46:20,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:46:20,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:46:20,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:46:20,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:46:20,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:46:20,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:46:20,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:46:20,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:46:20,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:46:20,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:46:20,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:46:20,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:46:20,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:46:20,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:46:20,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:46:20,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:46:20,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:46:20,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:46:20,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:46:20,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:46:20,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:46:20,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:46:20,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:46:20,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:46:20,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:46:20,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:46:20,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:46:20,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:46:20,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:46:20,517 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:46:20,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:46:20,518 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:46:20,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:46:20,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:46:20,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:46:20,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:46:20,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:46:20,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:46:20,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:46:20,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:46:20,521 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:46:20,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:46:20,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:46:20,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:46:20,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:46:20,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:46:20,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:20,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:46:20,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:46:20,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:46:20,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:46:20,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:46:20,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:46:20,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:46:20,524 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:46:21,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:46:21,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:46:21,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:46:21,029 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:46:21,030 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:46:21,031 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-24 15:46:21,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19689154a/9f5bbf8bf2c64c2394d533eaeca78b0e/FLAGb3db6d481 [2020-09-24 15:46:21,692 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:46:21,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-24 15:46:21,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19689154a/9f5bbf8bf2c64c2394d533eaeca78b0e/FLAGb3db6d481 [2020-09-24 15:46:21,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19689154a/9f5bbf8bf2c64c2394d533eaeca78b0e [2020-09-24 15:46:21,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:46:21,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:46:21,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:21,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:46:21,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:46:21,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e33fb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:21, skipping insertion in model container [2020-09-24 15:46:21,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:21" (1/1) ... [2020-09-24 15:46:21,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:46:22,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:46:22,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:22,638 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:46:22,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:22,754 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:46:22,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22 WrapperNode [2020-09-24 15:46:22,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:22,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:46:22,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:46:22,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:46:22,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22" (1/1) ... [2020-09-24 15:46:22,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22" (1/1) ... [2020-09-24 15:46:22,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22" (1/1) ... [2020-09-24 15:46:22,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22" (1/1) ... [2020-09-24 15:46:22,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22" (1/1) ... [2020-09-24 15:46:22,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22" (1/1) ... [2020-09-24 15:46:22,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22" (1/1) ... [2020-09-24 15:46:22,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:46:22,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:46:22,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:46:22,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:46:22,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:46:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:46:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:22,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:22,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:22,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:22,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:22,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:46:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:46:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:46:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:46:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:46:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:46:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:46:22,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:46:22,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:46:22,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:46:22,957 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:46:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:46:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:46:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:46:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:46:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:46:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:46:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:46:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:46:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:46:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:46:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:46:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:46:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:46:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:46:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:46:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:46:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:46:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:46:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:46:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:46:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:46:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:46:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:46:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:46:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:46:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:46:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:46:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:46:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:46:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:46:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:46:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:46:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:46:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:46:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:46:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:46:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:46:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:46:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:46:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:46:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:46:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:46:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:46:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:46:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:46:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:46:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:46:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:46:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:46:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:46:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:46:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:46:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:46:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:46:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:46:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:46:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:46:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:46:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:46:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:46:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:46:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:46:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:46:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:46:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:46:24,136 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:46:24,136 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:46:24,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:24 BoogieIcfgContainer [2020-09-24 15:46:24,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:46:24,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:46:24,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:46:24,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:46:24,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:46:21" (1/3) ... [2020-09-24 15:46:24,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe5e42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:24, skipping insertion in model container [2020-09-24 15:46:24,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:22" (2/3) ... [2020-09-24 15:46:24,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe5e42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:24, skipping insertion in model container [2020-09-24 15:46:24,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:24" (3/3) ... [2020-09-24 15:46:24,164 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-09-24 15:46:24,177 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:46:24,192 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:46:24,215 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:46:24,254 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:46:24,254 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:46:24,254 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:46:24,254 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:46:24,255 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:46:24,255 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:46:24,255 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:46:24,255 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:46:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-24 15:46:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:46:24,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:24,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:24,298 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:24,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:24,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1628156155, now seen corresponding path program 1 times [2020-09-24 15:46:24,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:24,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764034873] [2020-09-24 15:46:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:24,708 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:24,708 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:24,709 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:24,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:24,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 15:46:24,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:24,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:46:24,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:24,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:46:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:24,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:25,166 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:25,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,193 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,194 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:25,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:25,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:25,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:25,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:25,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,335 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,336 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:25,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:25,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:25,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,355 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:25,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:25,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:25,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,366 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,366 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:25,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:25,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:25,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:25,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:25,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:25,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:46:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:25,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:25,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:25,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:25,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:25,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,391 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:25,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:25,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:25,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:25,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:25,403 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:25,404 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:25,404 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:25,404 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:25,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:25,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:25,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:25,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:25,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:25,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:25,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:25,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:25,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764034873] [2020-09-24 15:46:25,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:25,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:46:25,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407366608] [2020-09-24 15:46:25,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:46:25,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:25,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:46:25,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:25,485 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-09-24 15:46:26,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:26,897 INFO L93 Difference]: Finished difference Result 436 states and 524 transitions. [2020-09-24 15:46:26,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:46:26,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 15:46:26,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:26,940 INFO L225 Difference]: With dead ends: 436 [2020-09-24 15:46:26,940 INFO L226 Difference]: Without dead ends: 276 [2020-09-24 15:46:26,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:26,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-24 15:46:27,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-09-24 15:46:27,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-24 15:46:27,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 254 transitions. [2020-09-24 15:46:27,050 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 254 transitions. Word has length 153 [2020-09-24 15:46:27,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:27,051 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 254 transitions. [2020-09-24 15:46:27,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:46:27,052 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 254 transitions. [2020-09-24 15:46:27,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 15:46:27,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:27,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:27,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:46:27,058 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:27,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:27,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1901557840, now seen corresponding path program 1 times [2020-09-24 15:46:27,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:27,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456187193] [2020-09-24 15:46:27,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:46:27,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:46:27,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:46:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:46:27,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,523 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:27,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,542 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,542 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:27,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:27,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:27,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:27,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:27,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:27,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:27,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:27,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:27,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 15:46:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,616 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,617 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:27,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:27,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:27,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:46:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:27,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:27,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:27,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:46:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:27,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:27,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:27,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:27,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:27,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:27,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:27,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:27,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:27,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:27,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:27,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:27,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456187193] [2020-09-24 15:46:27,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:27,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:27,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120624866] [2020-09-24 15:46:27,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:27,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:27,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:27,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:27,708 INFO L87 Difference]: Start difference. First operand 234 states and 254 transitions. Second operand 4 states. [2020-09-24 15:46:28,403 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:29,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:29,211 INFO L93 Difference]: Finished difference Result 343 states and 387 transitions. [2020-09-24 15:46:29,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:29,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 15:46:29,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:29,216 INFO L225 Difference]: With dead ends: 343 [2020-09-24 15:46:29,217 INFO L226 Difference]: Without dead ends: 259 [2020-09-24 15:46:29,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:29,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-24 15:46:29,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-09-24 15:46:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 15:46:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-09-24 15:46:29,260 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 154 [2020-09-24 15:46:29,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:29,261 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-09-24 15:46:29,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:29,261 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-09-24 15:46:29,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 15:46:29,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:29,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:29,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:46:29,265 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:29,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:29,265 INFO L82 PathProgramCache]: Analyzing trace with hash 189375213, now seen corresponding path program 1 times [2020-09-24 15:46:29,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:29,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271574770] [2020-09-24 15:46:29,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,332 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:46:29,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -42 [2020-09-24 15:46:29,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 42 [2020-09-24 15:46:29,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 15:46:29,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:29,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:29,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 15:46:29,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:46:29,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:29,661 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:29,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:29,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:29,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:29,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:29,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:29,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:29,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:29,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:29,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:29,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:29,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:29,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:29,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:29,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:29,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:29,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:29,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:29,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:29,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:29,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:29,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:29,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:29,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:29,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:29,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:29,777 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:29,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:29,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:29,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:29,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:29,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:29,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:29,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:29,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:29,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:29,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:29,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:29,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:29,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:46:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:29,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:29,796 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:29,796 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:46:29,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:29,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:29,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:29,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:46:29,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:29,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:46:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:29,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:29,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:29,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:29,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:29,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:29,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:29,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:29,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 15:46:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:29,809 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:29,809 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:29,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:29,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:29,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:29,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:29,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 15:46:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:29,814 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:29,814 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:29,814 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:29,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:29,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:29,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:29,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:29,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:29,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:29,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271574770] [2020-09-24 15:46:29,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:29,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:46:29,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908763725] [2020-09-24 15:46:29,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:46:29,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:29,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:46:29,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:29,845 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 5 states. [2020-09-24 15:46:30,487 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:32,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:32,110 INFO L93 Difference]: Finished difference Result 518 states and 604 transitions. [2020-09-24 15:46:32,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:46:32,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 15:46:32,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:32,120 INFO L225 Difference]: With dead ends: 518 [2020-09-24 15:46:32,120 INFO L226 Difference]: Without dead ends: 404 [2020-09-24 15:46:32,122 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 [2020-09-24 15:46:32,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-24 15:46:32,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 328. [2020-09-24 15:46:32,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-24 15:46:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 363 transitions. [2020-09-24 15:46:32,193 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 363 transitions. Word has length 167 [2020-09-24 15:46:32,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:32,194 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 363 transitions. [2020-09-24 15:46:32,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:46:32,194 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 363 transitions. [2020-09-24 15:46:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 15:46:32,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:32,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:32,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:46:32,199 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:32,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:32,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1096724522, now seen corresponding path program 1 times [2020-09-24 15:46:32,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:32,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356731212] [2020-09-24 15:46:32,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,308 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 15:46:32,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:46:32,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:46:32,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:46:32,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 15:46:32,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:32,728 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:32,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:32,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:32,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:32,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:46:32,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:32,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,842 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,842 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:32,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:32,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:32,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,851 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:32,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:32,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:32,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,859 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:32,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:32,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:32,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:32,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:32,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,868 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,869 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:32,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:32,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:32,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 15:46:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:46:32,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:32,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:32,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:46:32,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:32,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 15:46:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,904 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:32,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:32,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:32,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:32,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 15:46:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,916 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,916 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,916 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:32,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:46:32,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:32,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:32,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 15:46:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:32,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:32,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:32,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:32,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:32,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:32,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:32,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:32,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:33,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356731212] [2020-09-24 15:46:33,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:33,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:46:33,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093280543] [2020-09-24 15:46:33,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:46:33,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:33,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:46:33,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:46:33,026 INFO L87 Difference]: Start difference. First operand 328 states and 363 transitions. Second operand 9 states. [2020-09-24 15:46:33,727 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:35,564 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:35,947 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:36,299 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:36,647 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:36,953 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:37,269 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:37,566 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:38,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:38,429 INFO L93 Difference]: Finished difference Result 858 states and 1045 transitions. [2020-09-24 15:46:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:46:38,429 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 15:46:38,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:38,435 INFO L225 Difference]: With dead ends: 858 [2020-09-24 15:46:38,436 INFO L226 Difference]: Without dead ends: 640 [2020-09-24 15:46:38,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:46:38,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-09-24 15:46:38,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 539. [2020-09-24 15:46:38,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-09-24 15:46:38,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 617 transitions. [2020-09-24 15:46:38,536 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 617 transitions. Word has length 172 [2020-09-24 15:46:38,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:38,537 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 617 transitions. [2020-09-24 15:46:38,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:46:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 617 transitions. [2020-09-24 15:46:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 15:46:38,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:38,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:46:38,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:46:38,542 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:38,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:38,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1990325339, now seen corresponding path program 1 times [2020-09-24 15:46:38,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:38,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461272039] [2020-09-24 15:46:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:46:38,638 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:46:38,639 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:46:38,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:46:38,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:46:38 BoogieIcfgContainer [2020-09-24 15:46:38,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:46:38,682 INFO L168 Benchmark]: Toolchain (without parser) took 16713.62 ms. Allocated memory was 139.5 MB in the beginning and 537.9 MB in the end (delta: 398.5 MB). Free memory was 101.8 MB in the beginning and 295.1 MB in the end (delta: -193.3 MB). Peak memory consumption was 205.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:38,685 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-24 15:46:38,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.59 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 172.2 MB in the end (delta: -70.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:38,692 INFO L168 Benchmark]: Boogie Preprocessor took 97.91 ms. Allocated memory is still 203.4 MB. Free memory was 172.2 MB in the beginning and 168.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:38,693 INFO L168 Benchmark]: RCFGBuilder took 1297.26 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.3 MB in the beginning and 181.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:38,693 INFO L168 Benchmark]: TraceAbstraction took 14525.56 ms. Allocated memory was 236.5 MB in the beginning and 537.9 MB in the end (delta: 301.5 MB). Free memory was 181.2 MB in the beginning and 295.1 MB in the end (delta: -113.9 MB). Peak memory consumption was 187.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:38,707 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 781.59 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 172.2 MB in the end (delta: -70.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.91 ms. Allocated memory is still 203.4 MB. Free memory was 172.2 MB in the beginning and 168.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1297.26 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 168.3 MB in the beginning and 181.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14525.56 ms. Allocated memory was 236.5 MB in the beginning and 537.9 MB in the end (delta: 301.5 MB). Free memory was 181.2 MB in the beginning and 295.1 MB in the end (delta: -113.9 MB). Peak memory consumption was 187.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 910 SDtfs, 1043 SDslu, 864 SDs, 0 SdLazy, 1908 SolverSat, 369 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=539occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 254 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 246314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...