/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:00:57,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:00:57,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:00:57,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:00:57,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:00:57,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:00:57,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:00:57,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:00:57,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:00:57,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:00:57,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:00:57,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:00:57,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:00:57,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:00:57,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:00:57,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:00:57,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:00:57,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:00:57,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:00:57,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:00:57,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:00:57,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:00:57,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:00:57,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:00:57,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:00:57,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:00:57,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:00:57,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:00:57,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:00:57,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:00:57,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:00:57,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:00:57,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:00:57,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:00:57,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:00:57,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:00:57,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:00:57,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:00:57,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:00:57,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:00:57,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:00:57,468 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 18:00:57,496 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:00:57,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:00:57,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:00:57,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:00:57,499 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:00:57,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:00:57,499 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:00:57,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:00:57,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:00:57,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:00:57,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:00:57,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:00:57,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:00:57,500 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:00:57,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:00:57,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:00:57,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:00:57,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:00:57,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:00:57,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:00:57,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:00:57,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:00:57,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:00:57,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:00:57,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:00:57,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:00:57,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:00:57,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:00:57,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:00:57,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:00:57,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:00:57,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:00:57,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:00:57,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:00:57,976 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:00:57,977 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-09-24 18:00:58,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b9c9daf7/084703364cac47468345ecd74148660f/FLAG2f1f9e2f3 [2020-09-24 18:00:58,708 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:00:58,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-09-24 18:00:58,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b9c9daf7/084703364cac47468345ecd74148660f/FLAG2f1f9e2f3 [2020-09-24 18:00:58,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b9c9daf7/084703364cac47468345ecd74148660f [2020-09-24 18:00:58,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:00:59,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:00:59,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:59,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:00:59,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:00:59,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:58" (1/1) ... [2020-09-24 18:00:59,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59, skipping insertion in model container [2020-09-24 18:00:59,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:58" (1/1) ... [2020-09-24 18:00:59,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:00:59,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:00:59,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:59,530 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:00:59,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:59,749 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:00:59,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59 WrapperNode [2020-09-24 18:00:59,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:59,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:00:59,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:00:59,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:00:59,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59" (1/1) ... [2020-09-24 18:00:59,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59" (1/1) ... [2020-09-24 18:00:59,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59" (1/1) ... [2020-09-24 18:00:59,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59" (1/1) ... [2020-09-24 18:00:59,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59" (1/1) ... [2020-09-24 18:00:59,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59" (1/1) ... [2020-09-24 18:00:59,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59" (1/1) ... [2020-09-24 18:00:59,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:00:59,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:00:59,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:00:59,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:00:59,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59" (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 18:00:59,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:00:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:00:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:59,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:00:59,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:00:59,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:00:59,974 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:00:59,974 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:00:59,974 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 18:00:59,975 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:00:59,975 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:00:59,975 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:00:59,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:00:59,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:00:59,977 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:00:59,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:00:59,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:00:59,977 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:00:59,978 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:00:59,978 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:00:59,978 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:00:59,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:00:59,979 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:00:59,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:00:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:00:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:00:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:00:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:00:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:00:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:00:59,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:59,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:00:59,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:00:59,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:00:59,981 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:00:59,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:00:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:00:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:00:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:00:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:00:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:00:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:00:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:00:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:00:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:00:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:00:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:00:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:00:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:00:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:00:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:00:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:00:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:00:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:00:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:00:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:00:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:00:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:00:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:00:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:00:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:00:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:00:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:00:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 18:00:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:00:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:00:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:00:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:00:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:00:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:00:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:00:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:00:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:00:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:00:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:00:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:00:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:00:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:00:59,994 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:00:59,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:00:59,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:00:59,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:01:01,168 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:01:01,168 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:01:01,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:01 BoogieIcfgContainer [2020-09-24 18:01:01,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:01:01,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:01:01,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:01:01,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:01:01,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:00:58" (1/3) ... [2020-09-24 18:01:01,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7ca72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:01, skipping insertion in model container [2020-09-24 18:01:01,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:59" (2/3) ... [2020-09-24 18:01:01,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7ca72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:01:01, skipping insertion in model container [2020-09-24 18:01:01,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:01:01" (3/3) ... [2020-09-24 18:01:01,187 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-09-24 18:01:01,200 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:01:01,213 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:01:01,237 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:01:01,272 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:01:01,273 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:01:01,273 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:01:01,273 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:01:01,273 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:01:01,274 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:01:01,274 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:01:01,274 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:01:01,307 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-24 18:01:01,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:01:01,329 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:01,333 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 18:01:01,334 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:01,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:01,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times [2020-09-24 18:01:01,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:01,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538084907] [2020-09-24 18:01:01,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:01,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:02,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:02,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:05,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:05,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:01:05,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:01:05,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4216 [2020-09-24 18:01:05,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:05,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:05,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:01:05,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:05,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:01:06,490 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:06,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:06,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-24 18:01:06,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:06,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:06,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:06,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:06,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:06,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:06,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:06,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:01:06,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:06,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:06,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:06,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:01:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:06,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:06,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:01:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:06,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:06,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:06,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:01:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:06,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:06,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:06,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:06,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:06,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:06,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:06,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:06,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:06,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:06,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:06,847 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 18:01:06,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538084907] [2020-09-24 18:01:06,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:06,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:01:06,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585860239] [2020-09-24 18:01:06,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:01:06,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:06,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:01:06,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:01:06,880 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2020-09-24 18:01:08,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:08,368 INFO L93 Difference]: Finished difference Result 477 states and 570 transitions. [2020-09-24 18:01:08,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:01:08,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:01:08,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:08,406 INFO L225 Difference]: With dead ends: 477 [2020-09-24 18:01:08,407 INFO L226 Difference]: Without dead ends: 296 [2020-09-24 18:01:08,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:01:08,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-24 18:01:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-09-24 18:01:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 18:01:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-09-24 18:01:08,609 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 153 [2020-09-24 18:01:08,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:08,612 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-09-24 18:01:08,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:01:08,613 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-09-24 18:01:08,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:01:08,627 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:08,627 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 18:01:08,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:01:08,628 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:08,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:08,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1820086342, now seen corresponding path program 1 times [2020-09-24 18:01:08,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:08,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999350117] [2020-09-24 18:01:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:08,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:08,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:09,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:13,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:13,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:01:13,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:01:13,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 18:01:13,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:01:13,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:01:13,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,088 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:14,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:14,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 18:01:14,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:14,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:14,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:14,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:14,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:14,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:14,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:14,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:01:14,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:01:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:14,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:14,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:01:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:14,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:14,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:14,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:01:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:14,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:14,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,332 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 18:01:14,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999350117] [2020-09-24 18:01:14,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:14,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:01:14,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732335324] [2020-09-24 18:01:14,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:01:14,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:14,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:01:14,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:01:14,337 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 4 states. [2020-09-24 18:01:15,026 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:01:16,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:16,097 INFO L93 Difference]: Finished difference Result 394 states and 445 transitions. [2020-09-24 18:01:16,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:01:16,097 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:01:16,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:16,102 INFO L225 Difference]: With dead ends: 394 [2020-09-24 18:01:16,102 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 18:01:16,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:01:16,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 18:01:16,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-09-24 18:01:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-24 18:01:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-24 18:01:16,149 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 154 [2020-09-24 18:01:16,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:16,150 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-24 18:01:16,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:01:16,150 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-24 18:01:16,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 18:01:16,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:16,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:16,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:01:16,153 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:16,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:16,154 INFO L82 PathProgramCache]: Analyzing trace with hash 874874567, now seen corresponding path program 1 times [2020-09-24 18:01:16,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:16,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135257241] [2020-09-24 18:01:16,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:16,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:16,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:19,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:19,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 18:01:19,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:01:19,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2995 [2020-09-24 18:01:19,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 18:01:19,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 18:01:19,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:19,626 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:19,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:19,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:19,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:19,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:19,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-24 18:01:19,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:19,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 18:01:19,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:20,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:20,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:20,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:20,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:20,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:20,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:01:20,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:20,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:20,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:20,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:20,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:20,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:20,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:20,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:20,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:20,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:20,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:20,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:20,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:20,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:20,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:20,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:20,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 18:01:20,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:20,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:20,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:20,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:20,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:20,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:20,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:20,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:20,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:20,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:01:20,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:20,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:20,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:01:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:20,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:20,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:20,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:20,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:20,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:20,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:20,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:20,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:01:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:20,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:20,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:20,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:20,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:20,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:01:20,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:20,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:20,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:20,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:20,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:20,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:01:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:20,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:20,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:20,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:20,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:20,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:20,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:20,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:20,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:20,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:20,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:01:20,206 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 18:01:20,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135257241] [2020-09-24 18:01:20,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:20,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:01:20,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787118932] [2020-09-24 18:01:20,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:01:20,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:20,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:01:20,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:01:20,212 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-24 18:01:20,769 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:21,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:21,635 INFO L93 Difference]: Finished difference Result 414 states and 470 transitions. [2020-09-24 18:01:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:01:21,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 18:01:21,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:21,640 INFO L225 Difference]: With dead ends: 414 [2020-09-24 18:01:21,640 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 18:01:21,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:01:21,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 18:01:21,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-09-24 18:01:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-24 18:01:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 264 transitions. [2020-09-24 18:01:21,696 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 264 transitions. Word has length 163 [2020-09-24 18:01:21,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:21,696 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 264 transitions. [2020-09-24 18:01:21,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:01:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 264 transitions. [2020-09-24 18:01:21,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 18:01:21,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:21,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:21,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:01:21,699 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:21,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:21,700 INFO L82 PathProgramCache]: Analyzing trace with hash 515182839, now seen corresponding path program 1 times [2020-09-24 18:01:21,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:21,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768827579] [2020-09-24 18:01:21,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:21,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:23,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:23,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 18:01:23,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:23,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2105 [2020-09-24 18:01:23,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:23,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:01:23,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 18:01:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 18:01:23,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:24,395 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:24,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:24,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-24 18:01:24,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:24,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 18:01:24,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:24,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:24,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:01:24,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:24,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:24,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:24,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:24,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:01:24,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:24,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:24,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:24,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:24,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:01:24,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:24,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:24,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:24,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:24,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:01:24,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:24,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:24,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:24,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:01:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 18:01:24,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:01:24,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 18:01:24,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:24,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:01:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:01:24,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:01:24,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:24,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:24,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:24,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:01:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:24,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:24,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:24,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:24,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:24,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 18:01:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:24,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:24,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:24,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:24,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:24,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 18:01:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:24,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:24,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:24,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:24,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:01:24,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:01:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:24,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:24,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:25,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 18:01:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:25,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:25,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:25,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:25,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:25,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:25,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:25,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:25,118 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 18:01:25,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768827579] [2020-09-24 18:01:25,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:25,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:01:25,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505241158] [2020-09-24 18:01:25,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:01:25,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:25,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:01:25,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:01:25,122 INFO L87 Difference]: Start difference. First operand 245 states and 264 transitions. Second operand 9 states. [2020-09-24 18:01:25,610 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:27,828 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:28,207 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:01:28,527 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:28,877 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:01:29,212 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:29,690 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:29,992 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:30,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:30,499 INFO L93 Difference]: Finished difference Result 592 states and 706 transitions. [2020-09-24 18:01:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:01:30,499 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-09-24 18:01:30,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:30,506 INFO L225 Difference]: With dead ends: 592 [2020-09-24 18:01:30,506 INFO L226 Difference]: Without dead ends: 457 [2020-09-24 18:01:30,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:01:30,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-24 18:01:30,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 377. [2020-09-24 18:01:30,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-09-24 18:01:30,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 420 transitions. [2020-09-24 18:01:30,572 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 420 transitions. Word has length 176 [2020-09-24 18:01:30,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:30,573 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 420 transitions. [2020-09-24 18:01:30,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:01:30,573 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 420 transitions. [2020-09-24 18:01:30,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 18:01:30,576 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:30,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:30,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:01:30,577 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:30,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:30,577 INFO L82 PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times [2020-09-24 18:01:30,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:30,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802566335] [2020-09-24 18:01:30,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:01:30,645 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:01:30,645 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:01:30,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:01:30,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:01:30 BoogieIcfgContainer [2020-09-24 18:01:30,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:01:30,682 INFO L168 Benchmark]: Toolchain (without parser) took 31682.16 ms. Allocated memory was 138.9 MB in the beginning and 614.5 MB in the end (delta: 475.5 MB). Free memory was 101.4 MB in the beginning and 274.5 MB in the end (delta: -173.1 MB). Peak memory consumption was 302.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:30,683 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 18:01:30,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.41 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 173.0 MB in the end (delta: -72.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:30,685 INFO L168 Benchmark]: Boogie Preprocessor took 97.26 ms. Allocated memory is still 203.4 MB. Free memory was 173.0 MB in the beginning and 168.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:30,686 INFO L168 Benchmark]: RCFGBuilder took 1328.22 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 168.8 MB in the beginning and 179.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:30,687 INFO L168 Benchmark]: TraceAbstraction took 29501.82 ms. Allocated memory was 235.4 MB in the beginning and 614.5 MB in the end (delta: 379.1 MB). Free memory was 178.1 MB in the beginning and 274.5 MB in the end (delta: -96.4 MB). Peak memory consumption was 282.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:30,691 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 745.41 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 173.0 MB in the end (delta: -72.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.26 ms. Allocated memory is still 203.4 MB. Free memory was 173.0 MB in the beginning and 168.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1328.22 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 168.8 MB in the beginning and 179.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29501.82 ms. Allocated memory was 235.4 MB in the beginning and 614.5 MB in the end (delta: 379.1 MB). Free memory was 178.1 MB in the beginning and 274.5 MB in the end (delta: -96.4 MB). Peak memory consumption was 282.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 598]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int pumpRunning = 0; [L416] int systemActive = 1; [L672] int waterLevel = 1; [L673] int methaneLevelCritical = 0; [L761] int cleanupTimeShifts = 4; [L837] int retValue_acc ; [L838] int tmp ; [L842] FCALL select_helpers() [L843] FCALL select_features() [L844] CALL, EXPR valid_product() [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] return (retValue_acc); [L844] RET, EXPR valid_product() [L844] tmp = valid_product() [L846] COND TRUE \read(tmp) [L848] FCALL setup() [L849] CALL runTest() [L828] CALL test() [L607] int splverifierCounter ; [L608] int tmp ; [L609] int tmp___0 ; [L610] int tmp___1 ; [L611] int tmp___2 ; [L614] splverifierCounter = 0 [L616] COND TRUE 1 [L618] COND TRUE splverifierCounter < 4 [L624] tmp = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp) [L628] CALL waterRise() [L690] COND TRUE waterLevel < 2 [L691] waterLevel = waterLevel + 1 [L628] RET waterRise() [L634] tmp___0 = __VERIFIER_nondet_int() [L636] COND FALSE !(\read(tmp___0)) [L644] tmp___2 = __VERIFIER_nondet_int() [L646] COND TRUE \read(tmp___2) [L659] CALL timeShift() [L423] COND FALSE !(\read(pumpRunning)) [L430] COND TRUE \read(systemActive) [L432] CALL processEnvironment() [L478] int tmp ; [L481] COND FALSE !(\read(pumpRunning)) [L496] CALL processEnvironment__wrappee__lowWaterSensor() [L452] int tmp ; [L455] COND FALSE !(\read(pumpRunning)) [L470] FCALL processEnvironment__wrappee__base() [L496] RET processEnvironment__wrappee__lowWaterSensor() [L432] RET processEnvironment() [L438] CALL __utac_acc__Specification3_spec__1() [L861] int tmp ; [L862] int tmp___0 ; [L863] int tmp___1 ; [L867] CALL, EXPR isMethaneLevelCritical() [L711] int retValue_acc ; [L714] retValue_acc = methaneLevelCritical [L715] return (retValue_acc); [L867] RET, EXPR isMethaneLevelCritical() [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L873] CALL, EXPR getWaterLevel() [L743] int retValue_acc ; [L746] retValue_acc = waterLevel [L747] return (retValue_acc); [L873] RET, EXPR getWaterLevel() [L873] tmp___0 = getWaterLevel() [L875] COND TRUE tmp___0 == 2 [L877] CALL, EXPR isPumpRunning() [L530] int retValue_acc ; [L533] retValue_acc = pumpRunning [L534] return (retValue_acc); [L877] RET, EXPR isPumpRunning() [L877] tmp___1 = isPumpRunning() [L879] COND FALSE !(\read(tmp___1)) [L883] CALL __automaton_fail() [L598] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 940 SDtfs, 1009 SDslu, 752 SDs, 0 SdLazy, 1895 SolverSat, 322 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=377occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 189 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.9s InterpolantComputationTime, 827 NumberOfCodeBlocks, 827 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 255764 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...