/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:11:05,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:11:05,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:11:05,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:11:05,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:11:05,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:11:05,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:11:05,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:11:05,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:11:05,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:11:05,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:11:05,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:11:05,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:11:05,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:11:05,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:11:05,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:11:05,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:11:05,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:11:05,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:11:05,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:11:05,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:11:05,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:11:05,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:11:05,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:11:05,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:11:05,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:11:05,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:11:05,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:11:05,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:11:05,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:11:05,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:11:05,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:11:05,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:11:05,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:11:05,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:11:05,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:11:05,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:11:05,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:11:05,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:11:05,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:11:05,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:11:05,441 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 [2020-10-27 22:11:05,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:11:05,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:11:05,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:11:05,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:11:05,511 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:11:05,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:11:05,512 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:11:05,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:11:05,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:11:05,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:11:05,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:11:05,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:11:05,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:11:05,514 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:11:05,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:11:05,515 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:11:05,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:11:05,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:11:05,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:11:05,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:11:05,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:11:05,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:11:05,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:11:05,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:11:05,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:11:05,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:11:05,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:11:05,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:11:05,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:11:05,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:11:05,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:11:05,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:11:05,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:11:05,978 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:11:05,978 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:11:05,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-10-27 22:11:06,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b231a7b6e/b58dc23c7bd94166bdba28225108b69b/FLAG1e60eba7e [2020-10-27 22:11:06,900 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:11:06,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-10-27 22:11:06,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b231a7b6e/b58dc23c7bd94166bdba28225108b69b/FLAG1e60eba7e [2020-10-27 22:11:06,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b231a7b6e/b58dc23c7bd94166bdba28225108b69b [2020-10-27 22:11:06,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:11:06,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:11:06,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:11:06,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:11:06,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:11:06,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:11:06" (1/1) ... [2020-10-27 22:11:06,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677c02ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:06, skipping insertion in model container [2020-10-27 22:11:06,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:11:06" (1/1) ... [2020-10-27 22:11:07,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:11:07,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:11:07,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:11:07,572 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:11:07,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:11:07,691 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:11:07,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07 WrapperNode [2020-10-27 22:11:07,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:11:07,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:11:07,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:11:07,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:11:07,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07" (1/1) ... [2020-10-27 22:11:07,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07" (1/1) ... [2020-10-27 22:11:07,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07" (1/1) ... [2020-10-27 22:11:07,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07" (1/1) ... [2020-10-27 22:11:07,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07" (1/1) ... [2020-10-27 22:11:07,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07" (1/1) ... [2020-10-27 22:11:07,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07" (1/1) ... [2020-10-27 22:11:07,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:11:07,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:11:07,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:11:07,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:11:07,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07" (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 [2020-10-27 22:11:07,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:11:07,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:11:07,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:11:07,940 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:11:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:11:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:11:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 22:11:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-27 22:11:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:11:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:11:07,942 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:11:07,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:11:07,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:11:07,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:11:07,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 22:11:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 22:11:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 22:11:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:11:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:11:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:11:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:11:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:11:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:11:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:11:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:11:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:11:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:11:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:11:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:11:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:11:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:11:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:11:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:11:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:11:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:11:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:11:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 22:11:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:11:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:11:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:11:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:11:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:11:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:11:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:11:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:11:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:11:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:11:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:11:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:11:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:11:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:11:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 22:11:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:11:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:11:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:11:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:11:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:11:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 22:11:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 22:11:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:11:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:11:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 22:11:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 22:11:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-27 22:11:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:11:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:11:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:11:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:11:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:11:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:11:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:11:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:11:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:11:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:11:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:11:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:11:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:11:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:11:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:11:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:11:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:11:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:11:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:11:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:11:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:11:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:11:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:11:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:11:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:11:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:11:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:11:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:11:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:11:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:11:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:11:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:11:09,234 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:11:09,234 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:11:09,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:11:09 BoogieIcfgContainer [2020-10-27 22:11:09,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:11:09,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:11:09,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:11:09,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:11:09,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:11:06" (1/3) ... [2020-10-27 22:11:09,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b24aab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:11:09, skipping insertion in model container [2020-10-27 22:11:09,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:11:07" (2/3) ... [2020-10-27 22:11:09,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b24aab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:11:09, skipping insertion in model container [2020-10-27 22:11:09,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:11:09" (3/3) ... [2020-10-27 22:11:09,247 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-10-27 22:11:09,261 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:11:09,267 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:11:09,282 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:11:09,313 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:11:09,313 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:11:09,313 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:11:09,314 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:11:09,314 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:11:09,314 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:11:09,314 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:11:09,314 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:11:09,338 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-10-27 22:11:09,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 22:11:09,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:09,351 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] [2020-10-27 22:11:09,352 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:11:09,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:09,359 INFO L82 PathProgramCache]: Analyzing trace with hash 104477935, now seen corresponding path program 1 times [2020-10-27 22:11:09,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:09,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414133475] [2020-10-27 22:11:09,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:09,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:09,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:10,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:12,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:12,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 22:11:12,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:11:12,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3179 [2020-10-27 22:11:12,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 22:11:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:12,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:11:13,427 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:11:13,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:11:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:13,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:13,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:13,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:13,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:13,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 22:11:13,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:13,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:13,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:11:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:13,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:13,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:13,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:13,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:13,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:13,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:13,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:13,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:11:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:11:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:13,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:13,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:13,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:13,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:13,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:13,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:13,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:13,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:13,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:11:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:13,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:13,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:13,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:13,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:13,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:13,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:13,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:13,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:13,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:11:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:13,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:13,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:13,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:13,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:13,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:13,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:13,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:11:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:13,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:13,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:13,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:13,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:13,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:11:13,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:13,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:13,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:11:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:13,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:13,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:13,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:13,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:13,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:11:13,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:13,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:13,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:13,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:13,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:13,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:11:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:13,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:13,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:13,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:13,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:13,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:13,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:13,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:11:13,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414133475] [2020-10-27 22:11:13,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:11:13,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:11:13,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245457973] [2020-10-27 22:11:13,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:11:13,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:11:13,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:11:13,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:11:13,672 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 3 states. [2020-10-27 22:11:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:11:15,328 INFO L93 Difference]: Finished difference Result 319 states and 419 transitions. [2020-10-27 22:11:15,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:11:15,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-27 22:11:15,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:11:15,345 INFO L225 Difference]: With dead ends: 319 [2020-10-27 22:11:15,345 INFO L226 Difference]: Without dead ends: 171 [2020-10-27 22:11:15,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:11:15,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-27 22:11:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 136. [2020-10-27 22:11:15,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-27 22:11:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 161 transitions. [2020-10-27 22:11:15,453 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 161 transitions. Word has length 53 [2020-10-27 22:11:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:11:15,454 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 161 transitions. [2020-10-27 22:11:15,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:11:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 161 transitions. [2020-10-27 22:11:15,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 22:11:15,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:15,458 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] [2020-10-27 22:11:15,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:11:15,459 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:11:15,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:15,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1640718714, now seen corresponding path program 1 times [2020-10-27 22:11:15,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:15,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736373912] [2020-10-27 22:11:15,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:15,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:15,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:15,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:18,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:18,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 22:11:18,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:11:18,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3102 [2020-10-27 22:11:18,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 22:11:18,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:11:18,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:19,008 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:11:19,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:11:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:19,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:19,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:19,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:19,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:19,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 22:11:19,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:19,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:19,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:19,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:19,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:11:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:19,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:19,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:19,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:19,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:19,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:19,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:19,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:19,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:19,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:11:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:19,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:19,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:19,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:19,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:19,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:19,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:19,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:19,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:19,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:11:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:19,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:19,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:19,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:19,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:19,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:19,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:19,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:19,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:11:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:19,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:19,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:19,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:19,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:19,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:11:19,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:19,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:19,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:11:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:19,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:19,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:19,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:19,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:19,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:19,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:19,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:19,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:19,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:11:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:19,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:19,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:19,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:19,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:19,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:19,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:19,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:19,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:19,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:19,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:19,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 22:11:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:19,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:19,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:19,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:19,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:19,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:19,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:19,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:11:19,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736373912] [2020-10-27 22:11:19,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:11:19,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:11:19,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841627285] [2020-10-27 22:11:19,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:11:19,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:11:19,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:11:19,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:11:19,146 INFO L87 Difference]: Start difference. First operand 136 states and 161 transitions. Second operand 4 states. [2020-10-27 22:11:19,768 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:11:21,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:11:21,028 INFO L93 Difference]: Finished difference Result 239 states and 294 transitions. [2020-10-27 22:11:21,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:11:21,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-27 22:11:21,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:11:21,036 INFO L225 Difference]: With dead ends: 239 [2020-10-27 22:11:21,036 INFO L226 Difference]: Without dead ends: 155 [2020-10-27 22:11:21,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:11:21,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-10-27 22:11:21,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 127. [2020-10-27 22:11:21,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-27 22:11:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2020-10-27 22:11:21,117 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 54 [2020-10-27 22:11:21,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:11:21,117 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2020-10-27 22:11:21,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:11:21,118 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2020-10-27 22:11:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-27 22:11:21,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:21,127 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] [2020-10-27 22:11:21,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:11:21,128 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:11:21,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:21,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1067976339, now seen corresponding path program 1 times [2020-10-27 22:11:21,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:21,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791974851] [2020-10-27 22:11:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:21,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:21,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:22,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:22,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 22:11:22,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:11:22,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1441 [2020-10-27 22:11:22,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:11:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:22,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 22:11:22,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:11:23,053 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:11:23,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:11:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:23,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:23,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:23,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:23,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:23,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 22:11:23,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:11:23,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:23,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:11:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:23,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:23,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:23,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:23,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:23,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:23,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:23,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:11:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:23,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:23,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:23,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:23,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:23,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:23,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:23,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:23,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:11:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:23,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:23,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:23,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:23,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:23,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:23,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:23,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:23,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:23,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:11:23,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:23,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:11:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:23,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:23,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:23,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:23,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:23,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:23,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:23,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:23,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:23,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:11:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:23,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:23,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:23,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:23,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:23,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:23,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:23,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:23,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:11:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:23,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:23,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:23,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:23,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:23,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:23,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:23,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:23,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:23,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:23,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:23,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:11:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:23,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:23,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:23,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:23,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:23,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:23,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:23,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:11:23,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791974851] [2020-10-27 22:11:23,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:11:23,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 22:11:23,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205873917] [2020-10-27 22:11:23,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 22:11:23,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:11:23,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 22:11:23,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:11:23,226 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand 5 states. [2020-10-27 22:11:23,689 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:11:26,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:11:26,061 INFO L93 Difference]: Finished difference Result 373 states and 463 transitions. [2020-10-27 22:11:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:11:26,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-27 22:11:26,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:11:26,066 INFO L225 Difference]: With dead ends: 373 [2020-10-27 22:11:26,067 INFO L226 Difference]: Without dead ends: 270 [2020-10-27 22:11:26,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:11:26,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-27 22:11:26,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 219. [2020-10-27 22:11:26,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-10-27 22:11:26,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 264 transitions. [2020-10-27 22:11:26,148 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 264 transitions. Word has length 59 [2020-10-27 22:11:26,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:11:26,149 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 264 transitions. [2020-10-27 22:11:26,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 22:11:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 264 transitions. [2020-10-27 22:11:26,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 22:11:26,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:26,151 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] [2020-10-27 22:11:26,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:11:26,152 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:11:26,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:26,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1261857937, now seen corresponding path program 1 times [2020-10-27 22:11:26,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:26,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715966649] [2020-10-27 22:11:26,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:26,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 22:11:27,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 919 [2020-10-27 22:11:27,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:11:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 22:11:27,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,594 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:11:27,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:11:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:27,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:27,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-27 22:11:27,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:27,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:11:27,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:11:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:27,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:27,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:27,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:27,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:27,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:27,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:11:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:27,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:27,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:27,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:11:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:27,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:27,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:27,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:27,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:27,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:11:27,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:11:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:27,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:11:27,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:27,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:11:27,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:11:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:27,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:11:27,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:27,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:27,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:11:27,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:11:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:27,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:27,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:11:27,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:11:27,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:27,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:11:27,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:11:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:27,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:27,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:11:27,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:11:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:11:27,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:11:27,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 22:11:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:11:27,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:11:27,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:11:27,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:11:27,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:11:27,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:11:27,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:11:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:11:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:11:27,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:11:27,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:11:27,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:11:27,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715966649] [2020-10-27 22:11:27,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:11:27,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 22:11:27,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232395087] [2020-10-27 22:11:27,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:11:27,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:11:27,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:11:27,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:11:27,835 INFO L87 Difference]: Start difference. First operand 219 states and 264 transitions. Second operand 9 states. [2020-10-27 22:11:28,437 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:11:30,508 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:11:31,118 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:11:31,590 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:11:32,027 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:11:32,659 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:11:33,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:11:33,833 INFO L93 Difference]: Finished difference Result 697 states and 922 transitions. [2020-10-27 22:11:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:11:33,835 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-27 22:11:33,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:11:33,841 INFO L225 Difference]: With dead ends: 697 [2020-10-27 22:11:33,841 INFO L226 Difference]: Without dead ends: 502 [2020-10-27 22:11:33,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:11:33,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-10-27 22:11:34,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 420. [2020-10-27 22:11:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-27 22:11:34,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 520 transitions. [2020-10-27 22:11:34,015 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 520 transitions. Word has length 64 [2020-10-27 22:11:34,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:11:34,016 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 520 transitions. [2020-10-27 22:11:34,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:11:34,016 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 520 transitions. [2020-10-27 22:11:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 22:11:34,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:11:34,020 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] [2020-10-27 22:11:34,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:11:34,020 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:11:34,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:11:34,021 INFO L82 PathProgramCache]: Analyzing trace with hash -162196407, now seen corresponding path program 1 times [2020-10-27 22:11:34,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:11:34,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73422958] [2020-10-27 22:11:34,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:11:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:11:34,082 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:11:34,082 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:11:34,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:11:34,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:11:34 BoogieIcfgContainer [2020-10-27 22:11:34,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:11:34,116 INFO L168 Benchmark]: Toolchain (without parser) took 27150.11 ms. Allocated memory was 151.0 MB in the beginning and 476.1 MB in the end (delta: 325.1 MB). Free memory was 124.6 MB in the beginning and 437.4 MB in the end (delta: -312.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:34,117 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:11:34,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.86 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 103.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:34,121 INFO L168 Benchmark]: Boogie Preprocessor took 95.25 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 99.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:34,127 INFO L168 Benchmark]: RCFGBuilder took 1447.63 ms. Allocated memory is still 151.0 MB. Free memory was 99.1 MB in the beginning and 127.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 54.9 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:34,128 INFO L168 Benchmark]: TraceAbstraction took 24874.31 ms. Allocated memory was 151.0 MB in the beginning and 476.1 MB in the end (delta: 325.1 MB). Free memory was 127.1 MB in the beginning and 437.4 MB in the end (delta: -310.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 22:11:34,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 716.86 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 103.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 95.25 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 99.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1447.63 ms. Allocated memory is still 151.0 MB. Free memory was 99.1 MB in the beginning and 127.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 54.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24874.31 ms. Allocated memory was 151.0 MB in the beginning and 476.1 MB in the end (delta: 325.1 MB). Free memory was 127.1 MB in the beginning and 437.4 MB in the end (delta: -310.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L371] int cleanupTimeShifts = 4; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L836] int waterLevel = 1; [L837] int methaneLevelCritical = 0; [L447] int retValue_acc ; [L448] int tmp ; [L452] FCALL select_helpers() [L453] FCALL select_features() [L454] CALL, EXPR valid_product() [L951] int retValue_acc ; [L954] retValue_acc = 1 [L955] return (retValue_acc); [L454] RET, EXPR valid_product() [L454] tmp = valid_product() [L456] COND TRUE \read(tmp) [L458] FCALL setup() [L459] CALL runTest() [L438] CALL test() [L268] int splverifierCounter ; [L269] int tmp ; [L270] int tmp___0 ; [L271] int tmp___1 ; [L272] int tmp___2 ; [L275] splverifierCounter = 0 [L277] COND TRUE 1 [L279] COND TRUE splverifierCounter < 4 [L285] tmp = __VERIFIER_nondet_int() [L287] COND TRUE \read(tmp) [L289] CALL waterRise() [L854] COND TRUE waterLevel < 2 [L855] waterLevel = waterLevel + 1 [L289] RET waterRise() [L295] tmp___0 = __VERIFIER_nondet_int() [L297] COND FALSE !(\read(tmp___0)) [L305] tmp___2 = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp___2)) [L313] tmp___1 = __VERIFIER_nondet_int() [L315] COND TRUE \read(tmp___1) [L317] CALL stopSystem() [L244] COND FALSE !(\read(pumpRunning)) [L251] systemActive = 0 [L317] RET stopSystem() [L324] CALL timeShift() [L70] COND FALSE !(\read(pumpRunning)) [L77] COND FALSE !(\read(systemActive)) [L85] CALL __utac_acc__Specification3_spec__1() [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L344] CALL, EXPR isMethaneLevelCritical() [L875] int retValue_acc ; [L878] retValue_acc = methaneLevelCritical [L879] return (retValue_acc); [L344] RET, EXPR isMethaneLevelCritical() [L344] tmp = isMethaneLevelCritical() [L346] COND FALSE !(\read(tmp)) [L350] CALL, EXPR getWaterLevel() [L907] int retValue_acc ; [L910] retValue_acc = waterLevel [L911] return (retValue_acc); [L350] RET, EXPR getWaterLevel() [L350] tmp___0 = getWaterLevel() [L352] COND TRUE tmp___0 == 2 [L354] CALL, EXPR isPumpRunning() [L177] int retValue_acc ; [L180] retValue_acc = pumpRunning [L181] return (retValue_acc); [L354] RET, EXPR isPumpRunning() [L354] tmp___1 = isPumpRunning() [L356] COND FALSE !(\read(tmp___1)) [L360] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product24.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 249 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 523 SDtfs, 706 SDslu, 336 SDs, 0 SdLazy, 1579 SolverSat, 424 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=420occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 196 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 68692 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...