/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:16:16,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:16:16,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:16:16,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:16:16,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:16:16,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:16:16,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:16:16,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:16:16,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:16:16,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:16:16,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:16:16,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:16:16,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:16:16,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:16:16,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:16:16,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:16:16,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:16:16,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:16:16,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:16:16,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:16:16,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:16:16,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:16:16,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:16:16,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:16:16,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:16:16,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:16:16,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:16:16,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:16:16,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:16:16,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:16:16,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:16:16,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:16:16,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:16:16,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:16:16,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:16:16,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:16:16,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:16:16,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:16:16,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:16:16,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:16:16,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:16:16,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 04:16:16,579 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:16:16,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:16:16,579 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:16:16,579 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:16:16,580 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:16:16,580 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:16:16,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:16:16,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:16:16,581 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:16:16,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:16:16,581 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:16:16,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:16:16,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:16:16,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:16:16,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:16:16,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:16:16,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:16:16,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:16:16,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:16:16,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:16:16,584 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:16:16,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:16:16,584 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:16:16,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:16:16,584 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:16:16,584 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:16:16,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:16:16,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:16:16,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:16:16,809 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:16:16,812 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:16:16,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2023-04-02 04:16:17,880 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:16:18,084 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:16:18,085 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2023-04-02 04:16:18,093 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bde16e2c/9ebd053db2f84537b5e01c632edb4e51/FLAGfd9f11a25 [2023-04-02 04:16:18,107 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bde16e2c/9ebd053db2f84537b5e01c632edb4e51 [2023-04-02 04:16:18,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:16:18,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:16:18,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:16:18,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:16:18,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:16:18,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d117f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18, skipping insertion in model container [2023-04-02 04:16:18,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:16:18,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:16:18,296 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13817,13830] [2023-04-02 04:16:18,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:16:18,317 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:16:18,350 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13817,13830] [2023-04-02 04:16:18,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:16:18,370 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:16:18,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18 WrapperNode [2023-04-02 04:16:18,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:16:18,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:16:18,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:16:18,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:16:18,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,432 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:16:18,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:16:18,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:16:18,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:16:18,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (1/1) ... [2023-04-02 04:16:18,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:16:18,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:16:18,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:16:18,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:16:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:16:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:16:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:16:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:16:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:16:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:16:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:16:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:16:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:16:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:16:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:16:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:16:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:16:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:16:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:16:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:16:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:16:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:16:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:16:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:16:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:16:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:16:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:16:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:16:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:16:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:16:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:16:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:16:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:16:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:16:18,639 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:16:18,645 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:16:19,193 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:16:19,209 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:16:19,210 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:16:19,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:16:19 BoogieIcfgContainer [2023-04-02 04:16:19,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:16:19,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:16:19,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:16:19,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:16:19,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:16:18" (1/3) ... [2023-04-02 04:16:19,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9ba8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:16:19, skipping insertion in model container [2023-04-02 04:16:19,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:18" (2/3) ... [2023-04-02 04:16:19,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9ba8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:16:19, skipping insertion in model container [2023-04-02 04:16:19,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:16:19" (3/3) ... [2023-04-02 04:16:19,218 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2023-04-02 04:16:19,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:16:19,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:16:19,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:16:19,277 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a2a4c44, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:16:19,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:16:19,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 104 states have internal predecessors, (120), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 04:16:19,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:16:19,292 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:19,293 INFO L195 NwaCegarLoop]: 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] [2023-04-02 04:16:19,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:19,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:19,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1782912544, now seen corresponding path program 1 times [2023-04-02 04:16:19,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:19,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013335937] [2023-04-02 04:16:19,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:19,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:16:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:16:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:16:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:16:19,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:19,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013335937] [2023-04-02 04:16:19,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013335937] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:19,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:19,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:16:19,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762605036] [2023-04-02 04:16:19,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:19,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:16:19,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:19,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:16:19,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:16:19,516 INFO L87 Difference]: Start difference. First operand has 168 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 104 states have internal predecessors, (120), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:16:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:19,944 INFO L93 Difference]: Finished difference Result 291 states and 384 transitions. [2023-04-02 04:16:19,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:16:19,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:16:19,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:19,959 INFO L225 Difference]: With dead ends: 291 [2023-04-02 04:16:19,959 INFO L226 Difference]: Without dead ends: 157 [2023-04-02 04:16:19,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:16:19,967 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 95 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:19,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 20 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:16:19,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-04-02 04:16:20,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 125. [2023-04-02 04:16:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 82 states have internal predecessors, (91), 31 states have call successors, (31), 25 states have call predecessors, (31), 20 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2023-04-02 04:16:20,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2023-04-02 04:16:20,028 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 52 [2023-04-02 04:16:20,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:20,029 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2023-04-02 04:16:20,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:16:20,029 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2023-04-02 04:16:20,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:16:20,036 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:20,036 INFO L195 NwaCegarLoop]: 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] [2023-04-02 04:16:20,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:16:20,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:20,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash -571759941, now seen corresponding path program 1 times [2023-04-02 04:16:20,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:20,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931120711] [2023-04-02 04:16:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:20,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:16:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:16:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:16:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:16:20,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:20,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931120711] [2023-04-02 04:16:20,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931120711] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:20,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:20,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:16:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680322899] [2023-04-02 04:16:20,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:20,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:16:20,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:20,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:16:20,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:16:20,202 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:16:20,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:20,522 INFO L93 Difference]: Finished difference Result 224 states and 275 transitions. [2023-04-02 04:16:20,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:16:20,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-04-02 04:16:20,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:20,527 INFO L225 Difference]: With dead ends: 224 [2023-04-02 04:16:20,528 INFO L226 Difference]: Without dead ends: 141 [2023-04-02 04:16:20,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:16:20,536 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 105 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:20,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 25 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:16:20,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-04-02 04:16:20,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 116. [2023-04-02 04:16:20,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 76 states have internal predecessors, (84), 28 states have call successors, (28), 24 states have call predecessors, (28), 20 states have return successors, (24), 20 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:16:20,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2023-04-02 04:16:20,561 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 53 [2023-04-02 04:16:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:20,562 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2023-04-02 04:16:20,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:16:20,562 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2023-04-02 04:16:20,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-02 04:16:20,565 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:20,566 INFO L195 NwaCegarLoop]: 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] [2023-04-02 04:16:20,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:16:20,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:20,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:20,566 INFO L85 PathProgramCache]: Analyzing trace with hash -124238494, now seen corresponding path program 1 times [2023-04-02 04:16:20,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:20,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820330606] [2023-04-02 04:16:20,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:16:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:16:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:16:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:20,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:16:20,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:20,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820330606] [2023-04-02 04:16:20,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820330606] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:20,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:20,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:16:20,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744088984] [2023-04-02 04:16:20,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:20,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:16:20,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:20,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:16:20,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:16:20,762 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:16:21,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:21,229 INFO L93 Difference]: Finished difference Result 233 states and 289 transitions. [2023-04-02 04:16:21,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:16:21,229 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 57 [2023-04-02 04:16:21,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:21,232 INFO L225 Difference]: With dead ends: 233 [2023-04-02 04:16:21,232 INFO L226 Difference]: Without dead ends: 141 [2023-04-02 04:16:21,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:16:21,238 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 189 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:21,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 33 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:16:21,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-04-02 04:16:21,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 116. [2023-04-02 04:16:21,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 75 states have internal predecessors, (83), 28 states have call successors, (28), 24 states have call predecessors, (28), 20 states have return successors, (24), 20 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:16:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2023-04-02 04:16:21,268 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 57 [2023-04-02 04:16:21,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:21,268 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2023-04-02 04:16:21,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:16:21,268 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2023-04-02 04:16:21,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 04:16:21,269 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:21,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:21,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:16:21,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:21,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:21,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1554802884, now seen corresponding path program 1 times [2023-04-02 04:16:21,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:21,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634550656] [2023-04-02 04:16:21,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:21,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 04:16:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:16:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:16:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:16:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:16:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 04:16:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:21,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:16:21,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:21,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634550656] [2023-04-02 04:16:21,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634550656] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:21,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:21,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:16:21,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392446728] [2023-04-02 04:16:21,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:21,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:16:21,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:21,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:16:21,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:16:21,419 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 04:16:22,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:22,051 INFO L93 Difference]: Finished difference Result 348 states and 456 transitions. [2023-04-02 04:16:22,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:16:22,052 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 70 [2023-04-02 04:16:22,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:22,053 INFO L225 Difference]: With dead ends: 348 [2023-04-02 04:16:22,053 INFO L226 Difference]: Without dead ends: 256 [2023-04-02 04:16:22,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:16:22,055 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 340 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:22,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 60 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:16:22,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-04-02 04:16:22,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 208. [2023-04-02 04:16:22,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 122 states have (on average 1.2295081967213115) internal successors, (150), 137 states have internal predecessors, (150), 48 states have call successors, (48), 38 states have call predecessors, (48), 37 states have return successors, (52), 37 states have call predecessors, (52), 44 states have call successors, (52) [2023-04-02 04:16:22,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 250 transitions. [2023-04-02 04:16:22,084 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 250 transitions. Word has length 70 [2023-04-02 04:16:22,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:22,085 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 250 transitions. [2023-04-02 04:16:22,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (17), 5 states have call predecessors, (17), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 04:16:22,085 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 250 transitions. [2023-04-02 04:16:22,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-04-02 04:16:22,086 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:22,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:22,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:16:22,086 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:22,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:22,087 INFO L85 PathProgramCache]: Analyzing trace with hash 74855254, now seen corresponding path program 1 times [2023-04-02 04:16:22,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:22,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99053175] [2023-04-02 04:16:22,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:22,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:16:22,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:16:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:16:22,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:16:22,153 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:16:22,154 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:16:22,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:16:22,159 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-02 04:16:22,161 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:16:22,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:16:22 BoogieIcfgContainer [2023-04-02 04:16:22,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:16:22,216 INFO L158 Benchmark]: Toolchain (without parser) took 4105.63ms. Allocated memory was 206.6MB in the beginning and 287.3MB in the end (delta: 80.7MB). Free memory was 148.8MB in the beginning and 246.5MB in the end (delta: -97.7MB). Peak memory consumption was 143.3MB. Max. memory is 8.0GB. [2023-04-02 04:16:22,216 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 206.6MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:16:22,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.95ms. Allocated memory is still 206.6MB. Free memory was 148.5MB in the beginning and 130.2MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-02 04:16:22,218 INFO L158 Benchmark]: Boogie Preprocessor took 66.47ms. Allocated memory is still 206.6MB. Free memory was 130.2MB in the beginning and 126.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-02 04:16:22,219 INFO L158 Benchmark]: RCFGBuilder took 773.71ms. Allocated memory is still 206.6MB. Free memory was 126.7MB in the beginning and 138.5MB in the end (delta: -11.8MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2023-04-02 04:16:22,219 INFO L158 Benchmark]: TraceAbstraction took 3001.57ms. Allocated memory was 206.6MB in the beginning and 287.3MB in the end (delta: 80.7MB). Free memory was 137.5MB in the beginning and 246.5MB in the end (delta: -109.0MB). Peak memory consumption was 131.1MB. Max. memory is 8.0GB. [2023-04-02 04:16:22,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 206.6MB. Free memory is still 156.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 257.95ms. Allocated memory is still 206.6MB. Free memory was 148.5MB in the beginning and 130.2MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.47ms. Allocated memory is still 206.6MB. Free memory was 130.2MB in the beginning and 126.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 773.71ms. Allocated memory is still 206.6MB. Free memory was 126.7MB in the beginning and 138.5MB in the end (delta: -11.8MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3001.57ms. Allocated memory was 206.6MB in the beginning and 287.3MB in the end (delta: 80.7MB). Free memory was 137.5MB in the beginning and 246.5MB in the end (delta: -109.0MB). Peak memory consumption was 131.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 608]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L425] int pumpRunning = 0; [L426] int systemActive = 1; [L682] int waterLevel = 1; [L683] int methaneLevelCritical = 0; [L771] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=55, \old(head)={49:54}, \old(methaneLevelCritical)=53, \old(pumpRunning)=57, \old(systemActive)=52, \old(waterLevel)=51, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L847] int retValue_acc ; [L848] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L930] int retValue_acc ; [L933] retValue_acc = 1 [L934] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L854] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L858] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L859] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L838] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L626] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L628] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L634] tmp = __VERIFIER_nondet_int() [L636] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L638] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L700] COND TRUE waterLevel < 2 [L701] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L669] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L433] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L440] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L488] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L491] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L462] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L465] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L480] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L448] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L871] int tmp ; [L872] int tmp___0 ; [L873] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L877] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L721] int retValue_acc ; [L724] retValue_acc = methaneLevelCritical [L725] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L877] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L877] tmp = isMethaneLevelCritical() [L879] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L883] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L753] int retValue_acc ; [L756] retValue_acc = waterLevel [L757] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L883] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L883] tmp___0 = getWaterLevel() [L885] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L887] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] int retValue_acc ; [L543] retValue_acc = pumpRunning [L544] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L887] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L887] tmp___1 = isPumpRunning() [L889] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L893] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L608] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 780 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 729 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 372 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1748 IncrementalHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 372 mSolverCounterUnsat, 46 mSDtfsCounter, 1748 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 130 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 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! [2023-04-02 04:16:22,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...