/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=SHALLOWEST --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 23:35:21,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:35:21,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:35:21,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:35:21,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:35:21,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:35:21,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:35:21,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:35:21,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:35:21,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:35:21,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:35:21,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:35:21,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:35:21,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:35:21,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:35:21,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:35:21,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:35:21,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:35:21,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:35:21,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:35:21,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:35:21,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:35:21,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:35:21,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:35:21,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:35:21,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:35:21,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:35:21,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:35:21,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:35:21,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:35:21,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:35:21,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:35:21,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:35:21,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:35:21,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:35:21,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:35:21,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:35:21,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:35:21,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:35:21,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:35:21,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:35:21,426 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 23:35:21,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:35:21,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:35:21,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:35:21,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:35:21,473 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:35:21,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:35:21,473 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:35:21,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:35:21,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:35:21,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:35:21,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:35:21,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:35:21,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:35:21,476 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:35:21,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:35:21,476 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:35:21,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:35:21,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:35:21,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:35:21,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:35:21,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:35:21,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:35:21,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:35:21,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:35:21,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:35:21,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:35:21,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:35:21,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:35:21,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:35:21,479 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:35:21,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:35:21,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:35:21,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:35:21,988 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:35:21,988 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:35:21,989 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-09-24 23:35:22,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6aa915ae/22d7dae9c738441fb534f0cd67b2cf4c/FLAG351c1ca02 [2020-09-24 23:35:22,652 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:35:22,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-09-24 23:35:22,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6aa915ae/22d7dae9c738441fb534f0cd67b2cf4c/FLAG351c1ca02 [2020-09-24 23:35:22,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6aa915ae/22d7dae9c738441fb534f0cd67b2cf4c [2020-09-24 23:35:22,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:35:22,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:35:22,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:35:22,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:35:22,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:35:22,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:22" (1/1) ... [2020-09-24 23:35:22,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37cf3534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:22, skipping insertion in model container [2020-09-24 23:35:22,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:22" (1/1) ... [2020-09-24 23:35:22,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:35:22,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:35:23,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:35:23,553 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:35:23,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:35:23,691 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:35:23,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23 WrapperNode [2020-09-24 23:35:23,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:35:23,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:35:23,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:35:23,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:35:23,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23" (1/1) ... [2020-09-24 23:35:23,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23" (1/1) ... [2020-09-24 23:35:23,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23" (1/1) ... [2020-09-24 23:35:23,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23" (1/1) ... [2020-09-24 23:35:23,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23" (1/1) ... [2020-09-24 23:35:23,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23" (1/1) ... [2020-09-24 23:35:23,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23" (1/1) ... [2020-09-24 23:35:23,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:35:23,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:35:23,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:35:23,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:35:23,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23" (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 23:35:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:35:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:35:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:35:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:35:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:35:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:35:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:35:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:35:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:35:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:35:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:35:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:35:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:35:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:35:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:35:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:35:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:35:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:35:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:35:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:35:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:35:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:35:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:35:23,872 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:35:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:35:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:35:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:35:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:35:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:35:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:35:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:35:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:35:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:35:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:35:23,875 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:35:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:35:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:35:23,876 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:35:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:35:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:35:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:35:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:35:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:35:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:35:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:35:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:35:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:35:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:35:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:35:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:35:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:35:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:35:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:35:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:35:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:35:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:35:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:35:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:35:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:35:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:35:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:35:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:35:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:35:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:35:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:35:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:35:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:35:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:35:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:35:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:35:23,885 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:35:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:35:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:35:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:35:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:35:23,887 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:35:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:35:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:35:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:35:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:35:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:35:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:35:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:35:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:35:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:35:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:35:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:35:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:35:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:35:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:35:25,045 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:35:25,045 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:35:25,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:25 BoogieIcfgContainer [2020-09-24 23:35:25,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:35:25,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:35:25,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:35:25,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:35:25,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:35:22" (1/3) ... [2020-09-24 23:35:25,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709dcdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:25, skipping insertion in model container [2020-09-24 23:35:25,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:23" (2/3) ... [2020-09-24 23:35:25,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709dcdc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:25, skipping insertion in model container [2020-09-24 23:35:25,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:25" (3/3) ... [2020-09-24 23:35:25,063 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-09-24 23:35:25,075 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:35:25,088 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:35:25,114 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:35:25,151 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:35:25,152 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:35:25,152 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:35:25,152 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:35:25,152 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:35:25,152 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:35:25,152 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:35:25,153 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:35:25,186 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-24 23:35:25,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 23:35:25,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:35:25,208 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 23:35:25,209 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:35:25,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:35:25,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times [2020-09-24 23:35:25,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:35:25,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486792701] [2020-09-24 23:35:25,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:35:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:25,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:25,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:26,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:29,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:29,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 23:35:29,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:35:29,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4029 [2020-09-24 23:35:29,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:29,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:29,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:35:29,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 23:35:29,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:35:30,155 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:35:30,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:35:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:30,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:30,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:30,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:35:30,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 23:35:30,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:35:30,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:30,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:35:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:30,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:30,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:30,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:30,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:30,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:30,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:30,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:30,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:35:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:30,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:30,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:30,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:30,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:30,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:30,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:30,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:30,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:30,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:30,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:35:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:30,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:30,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:30,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:30,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:30,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:35:30,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:30,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:30,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:30,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:35:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:30,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:30,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:30,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:30,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:30,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:30,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:30,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:30,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:30,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:30,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:30,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:35:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:30,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:30,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:30,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:30,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:30,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:30,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:30,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:30,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:30,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:30,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:30,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:35:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:30,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:30,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:30,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:30,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:30,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:35:30,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:30,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:30,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 23:35:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:30,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:30,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:30,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:30,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:30,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:30,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:30,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:30,620 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 23:35:30,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486792701] [2020-09-24 23:35:30,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:35:30,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:35:30,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798682879] [2020-09-24 23:35:30,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:35:30,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:35:30,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:35:30,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:35:30,653 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 4 states. [2020-09-24 23:35:31,322 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:35:32,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:35:32,418 INFO L93 Difference]: Finished difference Result 477 states and 570 transitions. [2020-09-24 23:35:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:35:32,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 23:35:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:35:32,447 INFO L225 Difference]: With dead ends: 477 [2020-09-24 23:35:32,447 INFO L226 Difference]: Without dead ends: 296 [2020-09-24 23:35:32,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:35:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-24 23:35:32,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-09-24 23:35:32,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 23:35:32,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions. [2020-09-24 23:35:32,579 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 153 [2020-09-24 23:35:32,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:35:32,583 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 277 transitions. [2020-09-24 23:35:32,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:35:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions. [2020-09-24 23:35:32,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 23:35:32,589 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:35:32,589 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 23:35:32,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:35:32,590 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:35:32,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:35:32,591 INFO L82 PathProgramCache]: Analyzing trace with hash 515182839, now seen corresponding path program 1 times [2020-09-24 23:35:32,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:35:32,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681764545] [2020-09-24 23:35:32,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:35:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:32,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:34,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:34,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 23:35:34,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:34,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1863 [2020-09-24 23:35:34,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:35:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:35:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 23:35:34,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:34,896 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:35:34,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:35:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:34,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:35:35,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-24 23:35:35,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:35:35,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:35,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:35:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:35,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:35:35,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:35,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:35,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:35:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:35,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:35,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:35,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:35:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:35,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:35:35,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:35,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:35,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:35,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:35:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:35,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:35:35,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:35,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 23:35:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:35:35,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:35:35,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:35,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:35:35,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:35,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:35:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:35:35,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:35:35,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:35,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:35,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:35,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:35:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:35,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:35:35,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:35,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:35,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:35,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:35:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:35,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:35,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:35,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:35,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:35,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 23:35:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:35,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:35:35,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:35:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:35,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:35,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:35,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 23:35:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:35,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:35,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:35,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:35,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:35,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:35:35,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:35,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:35,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:35,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:35,518 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 23:35:35,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681764545] [2020-09-24 23:35:35,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:35:35,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:35:35,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275361003] [2020-09-24 23:35:35,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:35:35,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:35:35,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:35:35,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:35:35,525 INFO L87 Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 9 states. [2020-09-24 23:35:36,152 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:35:38,631 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:35:39,045 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:35:39,385 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:35:39,740 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:35:40,066 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:35:40,547 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:35:40,855 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:35:41,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:35:41,805 INFO L93 Difference]: Finished difference Result 649 states and 811 transitions. [2020-09-24 23:35:41,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:35:41,806 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-09-24 23:35:41,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:35:41,814 INFO L225 Difference]: With dead ends: 649 [2020-09-24 23:35:41,814 INFO L226 Difference]: Without dead ends: 480 [2020-09-24 23:35:41,818 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 23:35:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-24 23:35:41,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 387. [2020-09-24 23:35:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-24 23:35:41,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 433 transitions. [2020-09-24 23:35:41,914 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 433 transitions. Word has length 176 [2020-09-24 23:35:41,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:35:41,915 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 433 transitions. [2020-09-24 23:35:41,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:35:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 433 transitions. [2020-09-24 23:35:41,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 23:35:41,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:35:41,921 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 23:35:41,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:35:41,922 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:35:41,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:35:41,922 INFO L82 PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times [2020-09-24 23:35:41,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:35:41,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971071825] [2020-09-24 23:35:41,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:35:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 23:35:42,001 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 23:35:42,001 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 23:35:42,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:35:42,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:35:42 BoogieIcfgContainer [2020-09-24 23:35:42,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:35:42,046 INFO L168 Benchmark]: Toolchain (without parser) took 19133.15 ms. Allocated memory was 141.0 MB in the beginning and 499.6 MB in the end (delta: 358.6 MB). Free memory was 102.9 MB in the beginning and 91.1 MB in the end (delta: 11.8 MB). Peak memory consumption was 370.4 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:42,047 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-09-24 23:35:42,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.62 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.5 MB in the beginning and 173.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:42,049 INFO L168 Benchmark]: Boogie Preprocessor took 94.03 ms. Allocated memory is still 205.5 MB. Free memory was 173.4 MB in the beginning and 169.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:42,050 INFO L168 Benchmark]: RCFGBuilder took 1266.04 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 169.6 MB in the beginning and 174.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:42,051 INFO L168 Benchmark]: TraceAbstraction took 16989.64 ms. Allocated memory was 235.9 MB in the beginning and 499.6 MB in the end (delta: 263.7 MB). Free memory was 173.2 MB in the beginning and 91.1 MB in the end (delta: 82.1 MB). Peak memory consumption was 345.8 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:42,055 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.62 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 102.5 MB in the beginning and 173.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.03 ms. Allocated memory is still 205.5 MB. Free memory was 173.4 MB in the beginning and 169.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1266.04 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 169.6 MB in the beginning and 174.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16989.64 ms. Allocated memory was 235.9 MB in the beginning and 499.6 MB in the end (delta: 263.7 MB). Free memory was 173.2 MB in the beginning and 91.1 MB in the end (delta: 82.1 MB). Peak memory consumption was 345.8 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: 16.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 485 SDtfs, 832 SDslu, 644 SDs, 0 SdLazy, 1567 SolverSat, 286 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=387occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 134 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 510 NumberOfCodeBlocks, 510 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 143994 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...