/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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:19:37,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:19:37,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:19:37,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:19:37,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:19:37,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:19:37,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:19:37,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:19:37,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:19:37,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:19:37,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:19:37,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:19:37,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:19:37,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:19:37,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:19:37,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:19:37,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:19:37,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:19:37,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:19:37,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:19:37,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:19:37,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:19:37,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:19:37,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:19:37,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:19:37,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:19:37,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:19:37,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:19:37,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:19:37,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:19:37,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:19:37,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:19:37,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:19:37,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:19:37,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:19:37,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:19:37,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:19:37,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:19:37,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:19:37,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:19:37,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:19:37,532 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 04:19:37,549 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:19:37,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:19:37,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:19:37,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:19:37,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:19:37,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:19:37,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:19:37,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:19:37,552 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:19:37,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:19:37,552 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:19:37,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:19:37,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:19:37,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:19:37,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:19:37,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:19:37,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:19:37,553 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:19:37,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:19:37,553 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:19:37,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:19:37,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:19:37,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:19:37,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:19:37,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:19:37,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:19:37,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:19:37,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:19:37,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:19:37,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:19:37,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:19:37,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:19:37,555 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:19:37,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:19:37,555 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:19:37,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:19:37,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:19:37,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:19:37,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:19:37,758 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:19:37,759 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:19:37,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2023-04-02 04:19:39,030 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:19:39,320 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:19:39,320 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2023-04-02 04:19:39,330 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d580674fa/09373af0d7aa4242bcce42a8db705d64/FLAGfa54cbbd3 [2023-04-02 04:19:39,344 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d580674fa/09373af0d7aa4242bcce42a8db705d64 [2023-04-02 04:19:39,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:19:39,347 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:19:39,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:19:39,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:19:39,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:19:39,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dba255c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39, skipping insertion in model container [2023-04-02 04:19:39,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:19:39,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:19:39,698 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_product60.cil.c[16122,16135] [2023-04-02 04:19:39,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:19:39,739 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:19:39,799 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_product60.cil.c[16122,16135] [2023-04-02 04:19:39,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:19:39,825 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:19:39,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39 WrapperNode [2023-04-02 04:19:39,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:19:39,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:19:39,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:19:39,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:19:39,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,906 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:19:39,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:19:39,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:19:39,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:19:39,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (1/1) ... [2023-04-02 04:19:39,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:19:39,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:19:39,955 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 04:19:39,968 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 04:19:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:19:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:19:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:19:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:19:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:19:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:19:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:19:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:19:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:19:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:19:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:19:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:19:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:19:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:19:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:19:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:19:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:19:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:19:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:19:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:19:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:19:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:19:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:19:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:19:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:19:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:19:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:19:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:19:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:19:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:19:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:19:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:19:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:19:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:19:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:19:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:19:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:19:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:19:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:19:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:19:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:19:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:19:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:19:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:19:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:19:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:19:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:19:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:19:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:19:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:19:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:19:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:19:40,007 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:19:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:19:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:19:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:19:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:19:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:19:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:19:40,008 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:19:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:19:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:19:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:19:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:19:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:19:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:19:40,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:19:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:19:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:19:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:19:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:19:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:19:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:19:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:19:40,010 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:19:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:19:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:19:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:19:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:19:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:19:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:19:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:19:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:19:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:19:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:19:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:19:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:19:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:19:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:19:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:19:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:19:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:19:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:19:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:19:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:19:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:19:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:19:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:19:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:19:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:19:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:19:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:19:40,216 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:19:40,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:19:40,748 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:19:40,757 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:19:40,757 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:19:40,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:19:40 BoogieIcfgContainer [2023-04-02 04:19:40,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:19:40,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:19:40,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:19:40,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:19:40,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:19:39" (1/3) ... [2023-04-02 04:19:40,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b08aae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:19:40, skipping insertion in model container [2023-04-02 04:19:40,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:19:39" (2/3) ... [2023-04-02 04:19:40,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b08aae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:19:40, skipping insertion in model container [2023-04-02 04:19:40,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:19:40" (3/3) ... [2023-04-02 04:19:40,771 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2023-04-02 04:19:40,788 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:19:40,788 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:19:40,830 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:19:40,836 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;@54949d5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:19:40,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:19:40,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 127 states have internal predecessors, (143), 52 states have call successors, (52), 33 states have call predecessors, (52), 33 states have return successors, (52), 47 states have call predecessors, (52), 52 states have call successors, (52) [2023-04-02 04:19:40,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:19:40,850 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:40,851 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 04:19:40,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:40,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:40,857 INFO L85 PathProgramCache]: Analyzing trace with hash 346507470, now seen corresponding path program 1 times [2023-04-02 04:19:40,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:40,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662385263] [2023-04-02 04:19:40,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:40,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:41,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:41,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:41,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:19:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:19:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:19:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:41,183 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 04:19:41,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:41,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662385263] [2023-04-02 04:19:41,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662385263] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:41,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:41,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:19:41,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039462494] [2023-04-02 04:19:41,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:41,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:19:41,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:41,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:19:41,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:19:41,236 INFO L87 Difference]: Start difference. First operand has 199 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 127 states have internal predecessors, (143), 52 states have call successors, (52), 33 states have call predecessors, (52), 33 states have return successors, (52), 47 states have call predecessors, (52), 52 states have call successors, (52) 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 04:19:41,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:41,876 INFO L93 Difference]: Finished difference Result 358 states and 461 transitions. [2023-04-02 04:19:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:19:41,879 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 04:19:41,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:41,898 INFO L225 Difference]: With dead ends: 358 [2023-04-02 04:19:41,899 INFO L226 Difference]: Without dead ends: 193 [2023-04-02 04:19:41,904 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 04:19:41,908 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 113 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:41,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 26 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:19:41,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-04-02 04:19:41,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 156. [2023-04-02 04:19:41,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 92 states have (on average 1.2391304347826086) internal successors, (114), 105 states have internal predecessors, (114), 37 states have call successors, (37), 31 states have call predecessors, (37), 26 states have return successors, (32), 27 states have call predecessors, (32), 32 states have call successors, (32) [2023-04-02 04:19:41,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2023-04-02 04:19:41,992 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 52 [2023-04-02 04:19:41,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:41,992 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2023-04-02 04:19:41,993 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 04:19:41,993 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2023-04-02 04:19:41,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:19:41,995 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:41,996 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 04:19:41,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:19:41,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:41,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:41,997 INFO L85 PathProgramCache]: Analyzing trace with hash 104971728, now seen corresponding path program 1 times [2023-04-02 04:19:41,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:41,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232398162] [2023-04-02 04:19:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:41,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:19:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:19:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:19:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,138 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 04:19:42,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:42,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232398162] [2023-04-02 04:19:42,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232398162] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:42,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:42,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:19:42,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473125702] [2023-04-02 04:19:42,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:42,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:19:42,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:42,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:19:42,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:19:42,143 INFO L87 Difference]: Start difference. First operand 156 states and 183 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 04:19:42,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:42,561 INFO L93 Difference]: Finished difference Result 281 states and 340 transitions. [2023-04-02 04:19:42,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:19:42,561 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 04:19:42,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:42,564 INFO L225 Difference]: With dead ends: 281 [2023-04-02 04:19:42,564 INFO L226 Difference]: Without dead ends: 177 [2023-04-02 04:19:42,565 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 04:19:42,566 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 123 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:42,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 34 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:19:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-04-02 04:19:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 147. [2023-04-02 04:19:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 86 states have (on average 1.244186046511628) internal successors, (107), 99 states have internal predecessors, (107), 34 states have call successors, (34), 30 states have call predecessors, (34), 26 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) [2023-04-02 04:19:42,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 171 transitions. [2023-04-02 04:19:42,600 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 171 transitions. Word has length 53 [2023-04-02 04:19:42,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:42,600 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 171 transitions. [2023-04-02 04:19:42,600 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 04:19:42,601 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 171 transitions. [2023-04-02 04:19:42,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 04:19:42,602 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:42,603 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] [2023-04-02 04:19:42,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:19:42,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:42,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:42,604 INFO L85 PathProgramCache]: Analyzing trace with hash -415538324, now seen corresponding path program 1 times [2023-04-02 04:19:42,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:42,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202060251] [2023-04-02 04:19:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:42,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:19:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:19:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:19:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:42,834 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 04:19:42,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:42,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202060251] [2023-04-02 04:19:42,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202060251] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:42,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:42,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:19:42,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882260933] [2023-04-02 04:19:42,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:42,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:19:42,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:42,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:19:42,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:19:42,837 INFO L87 Difference]: Start difference. First operand 147 states and 171 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 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 04:19:43,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:43,819 INFO L93 Difference]: Finished difference Result 506 states and 621 transitions. [2023-04-02 04:19:43,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:19:43,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 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 58 [2023-04-02 04:19:43,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:43,827 INFO L225 Difference]: With dead ends: 506 [2023-04-02 04:19:43,828 INFO L226 Difference]: Without dead ends: 383 [2023-04-02 04:19:43,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:19:43,837 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 487 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:43,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 85 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 04:19:43,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-04-02 04:19:43,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 314. [2023-04-02 04:19:43,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 191 states have (on average 1.2774869109947644) internal successors, (244), 216 states have internal predecessors, (244), 68 states have call successors, (68), 60 states have call predecessors, (68), 54 states have return successors, (65), 52 states have call predecessors, (65), 64 states have call successors, (65) [2023-04-02 04:19:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 377 transitions. [2023-04-02 04:19:43,934 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 377 transitions. Word has length 58 [2023-04-02 04:19:43,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:43,934 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 377 transitions. [2023-04-02 04:19:43,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 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 04:19:43,937 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 377 transitions. [2023-04-02 04:19:43,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 04:19:43,942 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:43,942 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] [2023-04-02 04:19:43,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:19:43,943 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:43,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:43,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1139126065, now seen corresponding path program 1 times [2023-04-02 04:19:43,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:43,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784049699] [2023-04-02 04:19:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:43,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:19:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:19:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:19:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:19:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:19:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:19:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:19:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:19:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:19:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:19:44,175 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 04:19:44,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:19:44,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784049699] [2023-04-02 04:19:44,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784049699] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:19:44,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:19:44,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:19:44,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415131489] [2023-04-02 04:19:44,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:19:44,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:19:44,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:19:44,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:19:44,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:19:44,178 INFO L87 Difference]: Start difference. First operand 314 states and 377 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:19:44,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:19:44,998 INFO L93 Difference]: Finished difference Result 973 states and 1259 transitions. [2023-04-02 04:19:44,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:19:44,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 63 [2023-04-02 04:19:44,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:19:45,003 INFO L225 Difference]: With dead ends: 973 [2023-04-02 04:19:45,003 INFO L226 Difference]: Without dead ends: 683 [2023-04-02 04:19:45,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 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 04:19:45,006 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 286 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:19:45,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 82 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:19:45,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-04-02 04:19:45,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 609. [2023-04-02 04:19:45,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 370 states have (on average 1.2513513513513514) internal successors, (463), 419 states have internal predecessors, (463), 129 states have call successors, (129), 108 states have call predecessors, (129), 109 states have return successors, (151), 102 states have call predecessors, (151), 125 states have call successors, (151) [2023-04-02 04:19:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 743 transitions. [2023-04-02 04:19:45,128 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 743 transitions. Word has length 63 [2023-04-02 04:19:45,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:19:45,129 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 743 transitions. [2023-04-02 04:19:45,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:19:45,130 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 743 transitions. [2023-04-02 04:19:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:19:45,132 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:19:45,132 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] [2023-04-02 04:19:45,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:19:45,133 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:19:45,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:19:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash -289825225, now seen corresponding path program 1 times [2023-04-02 04:19:45,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:19:45,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422041297] [2023-04-02 04:19:45,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:19:45,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:19:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:19:45,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:19:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:19:45,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:19:45,186 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:19:45,187 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:19:45,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:19:45,191 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-02 04:19:45,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:19:45,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:19:45 BoogieIcfgContainer [2023-04-02 04:19:45,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:19:45,239 INFO L158 Benchmark]: Toolchain (without parser) took 5891.78ms. Allocated memory was 302.0MB in the beginning and 373.3MB in the end (delta: 71.3MB). Free memory was 257.6MB in the beginning and 293.6MB in the end (delta: -36.1MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-04-02 04:19:45,239 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 188.7MB. Free memory was 142.8MB in the beginning and 142.6MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:19:45,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.76ms. Allocated memory is still 302.0MB. Free memory was 257.1MB in the beginning and 238.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-02 04:19:45,240 INFO L158 Benchmark]: Boogie Preprocessor took 86.01ms. Allocated memory is still 302.0MB. Free memory was 238.3MB in the beginning and 234.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:19:45,240 INFO L158 Benchmark]: RCFGBuilder took 845.75ms. Allocated memory is still 302.0MB. Free memory was 234.8MB in the beginning and 247.1MB in the end (delta: -12.2MB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. [2023-04-02 04:19:45,240 INFO L158 Benchmark]: TraceAbstraction took 4472.40ms. Allocated memory was 302.0MB in the beginning and 373.3MB in the end (delta: 71.3MB). Free memory was 246.0MB in the beginning and 293.6MB in the end (delta: -47.6MB). Peak memory consumption was 23.7MB. Max. memory is 8.0GB. [2023-04-02 04:19:45,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 188.7MB. Free memory was 142.8MB in the beginning and 142.6MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 475.76ms. Allocated memory is still 302.0MB. Free memory was 257.1MB in the beginning and 238.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.01ms. Allocated memory is still 302.0MB. Free memory was 238.3MB in the beginning and 234.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 845.75ms. Allocated memory is still 302.0MB. Free memory was 234.8MB in the beginning and 247.1MB in the end (delta: -12.2MB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. * TraceAbstraction took 4472.40ms. Allocated memory was 302.0MB in the beginning and 373.3MB in the end (delta: 71.3MB). Free memory was 246.0MB in the beginning and 293.6MB in the end (delta: -47.6MB). Peak memory consumption was 23.7MB. 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: 779]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L578] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int waterLevel = 1; [L823] int methaneLevelCritical = 0; [L925] 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] [L998] int retValue_acc ; [L999] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1003] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1004] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1005] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L813] int retValue_acc ; [L816] retValue_acc = 1 [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L1005] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L1005] tmp = valid_product() [L1007] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L1009] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L1010] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L992] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L66] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L78] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L840] COND TRUE waterLevel < 2 [L841] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L78] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L102] tmp___1 = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L106] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L353] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L360] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L106] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L113] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L142] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L149] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L382] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L861] int retValue_acc ; [L864] retValue_acc = methaneLevelCritical [L865] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L382] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L382] tmp = isMethaneLevelCritical() [L384] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L388] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L893] int retValue_acc ; [L896] retValue_acc = waterLevel [L897] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L388] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L388] tmp___0 = getWaterLevel() [L390] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L392] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L267] int retValue_acc ; [L270] retValue_acc = pumpRunning [L271] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L392] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L392] tmp___1 = isPumpRunning() [L394] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L398] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L779] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1074 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1009 mSDsluCounter, 227 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 491 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2555 IncrementalHoareTripleChecker+Invalid, 3046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 491 mSolverCounterUnsat, 66 mSDtfsCounter, 2555 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=609occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 210 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 482 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 04:19:45,272 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...