/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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:16:13,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:16:13,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:16:13,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:16:13,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:16:13,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:16:13,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:16:13,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:16:13,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:16:13,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:16:13,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:16:13,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:16:13,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:16:13,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:16:13,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:16:13,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:16:13,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:16:13,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:16:13,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:16:13,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:16:13,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:16:13,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:16:13,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:16:13,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:16:13,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:16:13,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:16:13,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:16:13,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:16:13,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:16:13,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:16:13,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:16:13,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:16:13,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:16:13,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:16:13,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:16:13,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:16:13,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:16:13,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:16:13,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:16:13,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:16:13,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:16:13,305 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 04:16:13,323 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:16:13,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:16:13,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:16:13,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:16:13,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:16:13,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:16:13,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:16:13,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:16:13,326 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:16:13,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:16:13,326 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:16:13,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:16:13,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:16:13,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:16:13,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:16:13,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:16:13,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:16:13,327 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:16:13,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:16:13,328 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:16:13,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:16:13,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:16:13,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:16:13,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:16:13,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:16:13,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:16:13,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:16:13,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:16:13,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:16:13,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:16:13,330 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:16:13,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:16:13,330 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:16:13,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:16:13,331 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:16:13,331 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:16:13,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:16:13,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:16:13,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:16:13,585 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:16:13,585 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:16:13,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2023-04-02 04:16:14,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:16:15,010 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:16:15,011 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2023-04-02 04:16:15,027 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9ce2490f/8ad44c5b96f549b8b4333a600c065783/FLAGe5ddcbfc1 [2023-04-02 04:16:15,052 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9ce2490f/8ad44c5b96f549b8b4333a600c065783 [2023-04-02 04:16:15,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:16:15,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:16:15,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:16:15,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:16:15,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:16:15,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14893eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15, skipping insertion in model container [2023-04-02 04:16:15,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:16:15,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:16:15,306 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_product20.cil.c[17955,17968] [2023-04-02 04:16:15,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:16:15,320 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:16:15,416 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_product20.cil.c[17955,17968] [2023-04-02 04:16:15,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:16:15,443 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:16:15,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15 WrapperNode [2023-04-02 04:16:15,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:16:15,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:16:15,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:16:15,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:16:15,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,524 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:16:15,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:16:15,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:16:15,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:16:15,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (1/1) ... [2023-04-02 04:16:15,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:16:15,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:16:15,565 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 04:16:15,569 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 04:16:15,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:16:15,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:16:15,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:16:15,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:16:15,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:16:15,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:16:15,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:16:15,595 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:16:15,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:16:15,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:16:15,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:16:15,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:16:15,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:16:15,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:16:15,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:16:15,596 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:16:15,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:16:15,597 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:16:15,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:16:15,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:16:15,597 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:16:15,597 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:16:15,597 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:16:15,597 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:16:15,598 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:16:15,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:16:15,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:16:15,598 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:16:15,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:16:15,598 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:16:15,598 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:16:15,598 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:16:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:16:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:16:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:16:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:16:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:16:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:16:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:16:15,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:16:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:16:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:16:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:16:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:16:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:16:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:16:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:16:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:16:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:16:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:16:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:16:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:16:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:16:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:16:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:16:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:16:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:16:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:16:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:16:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:16:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:16:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:16:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:16:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:16:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:16:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:16:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:16:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:16:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:16:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:16:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:16:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:16:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:16:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:16:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:16:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:16:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:16:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:16:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:16:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:16:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:16:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:16:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:16:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:16:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:16:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:16:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:16:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:16:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:16:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:16:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:16:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:16:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:16:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:16:15,765 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:16:15,768 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:16:16,282 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:16:16,291 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:16:16,291 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:16:16,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:16:16 BoogieIcfgContainer [2023-04-02 04:16:16,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:16:16,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:16:16,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:16:16,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:16:16,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:16:15" (1/3) ... [2023-04-02 04:16:16,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ee40f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:16:16, skipping insertion in model container [2023-04-02 04:16:16,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:15" (2/3) ... [2023-04-02 04:16:16,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ee40f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:16:16, skipping insertion in model container [2023-04-02 04:16:16,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:16:16" (3/3) ... [2023-04-02 04:16:16,301 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2023-04-02 04:16:16,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:16:16,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:16:16,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:16:16,384 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;@1764bf92, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:16:16,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:16:16,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 91 states have (on average 1.2967032967032968) internal successors, (118), 104 states have internal predecessors, (118), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2023-04-02 04:16:16,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:16:16,397 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:16,397 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 04:16:16,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:16,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:16,401 INFO L85 PathProgramCache]: Analyzing trace with hash 855823247, now seen corresponding path program 1 times [2023-04-02 04:16:16,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:16,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658105238] [2023-04-02 04:16:16,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:16,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:16:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:16:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:16:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,698 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 04:16:16,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:16,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658105238] [2023-04-02 04:16:16,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658105238] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:16,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:16,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:16:16,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813921134] [2023-04-02 04:16:16,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:16,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:16:16,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:16,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:16:16,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:16:16,750 INFO L87 Difference]: Start difference. First operand has 166 states, 91 states have (on average 1.2967032967032968) internal successors, (118), 104 states have internal predecessors, (118), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) 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 04:16:17,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:17,225 INFO L93 Difference]: Finished difference Result 282 states and 370 transitions. [2023-04-02 04:16:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:16:17,227 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 04:16:17,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:17,239 INFO L225 Difference]: With dead ends: 282 [2023-04-02 04:16:17,239 INFO L226 Difference]: Without dead ends: 153 [2023-04-02 04:16:17,243 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 04:16:17,249 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 86 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:17,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 21 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:16:17,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-04-02 04:16:17,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 120. [2023-04-02 04:16:17,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 80 states have internal predecessors, (87), 29 states have call successors, (29), 25 states have call predecessors, (29), 20 states have return successors, (24), 21 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:16:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2023-04-02 04:16:17,323 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2023-04-02 04:16:17,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:17,323 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2023-04-02 04:16:17,323 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 04:16:17,323 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2023-04-02 04:16:17,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:16:17,326 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:17,326 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 04:16:17,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:16:17,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:17,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:17,327 INFO L85 PathProgramCache]: Analyzing trace with hash 343847543, now seen corresponding path program 1 times [2023-04-02 04:16:17,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:17,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137830271] [2023-04-02 04:16:17,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:17,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:16:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:16:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:16:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,458 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 04:16:17,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:17,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137830271] [2023-04-02 04:16:17,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137830271] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:17,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:17,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:16:17,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565805160] [2023-04-02 04:16:17,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:17,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:16:17,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:17,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:16:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:16:17,462 INFO L87 Difference]: Start difference. First operand 120 states and 140 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 04:16:17,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:17,838 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2023-04-02 04:16:17,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:16:17,839 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 04:16:17,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:17,845 INFO L225 Difference]: With dead ends: 205 [2023-04-02 04:16:17,845 INFO L226 Difference]: Without dead ends: 137 [2023-04-02 04:16:17,845 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 04:16:17,847 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 96 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:17,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 28 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:16:17,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-04-02 04:16:17,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 111. [2023-04-02 04:16:17,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 64 states have (on average 1.25) internal successors, (80), 74 states have internal predecessors, (80), 26 states have call successors, (26), 24 states have call predecessors, (26), 20 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2023-04-02 04:16:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2023-04-02 04:16:17,882 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2023-04-02 04:16:17,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:17,883 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2023-04-02 04:16:17,883 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 04:16:17,883 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2023-04-02 04:16:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 04:16:17,890 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:17,890 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 04:16:17,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:16:17,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:17,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:17,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1043391324, now seen corresponding path program 1 times [2023-04-02 04:16:17,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:17,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694350523] [2023-04-02 04:16:17,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:17,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:16:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:16:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:16:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,252 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 04:16:18,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:18,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694350523] [2023-04-02 04:16:18,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694350523] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:18,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:18,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:16:18,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362981120] [2023-04-02 04:16:18,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:18,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:16:18,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:18,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:16:18,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:16:18,257 INFO L87 Difference]: Start difference. First operand 111 states and 128 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 04:16:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:19,135 INFO L93 Difference]: Finished difference Result 390 states and 482 transitions. [2023-04-02 04:16:19,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:16:19,136 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 04:16:19,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:19,139 INFO L225 Difference]: With dead ends: 390 [2023-04-02 04:16:19,139 INFO L226 Difference]: Without dead ends: 303 [2023-04-02 04:16:19,140 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 04:16:19,141 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 279 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:19,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 98 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:16:19,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-04-02 04:16:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 242. [2023-04-02 04:16:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 147 states have (on average 1.2925170068027212) internal successors, (190), 166 states have internal predecessors, (190), 52 states have call successors, (52), 48 states have call predecessors, (52), 42 states have return successors, (49), 40 states have call predecessors, (49), 48 states have call successors, (49) [2023-04-02 04:16:19,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 291 transitions. [2023-04-02 04:16:19,219 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 291 transitions. Word has length 58 [2023-04-02 04:16:19,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:19,219 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 291 transitions. [2023-04-02 04:16:19,219 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 04:16:19,219 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 291 transitions. [2023-04-02 04:16:19,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 04:16:19,221 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:19,221 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 04:16:19,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:16:19,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:19,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:19,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1597902135, now seen corresponding path program 1 times [2023-04-02 04:16:19,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:19,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682883826] [2023-04-02 04:16:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:19,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:16:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:16:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:16:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:16:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:19,445 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 04:16:19,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:19,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682883826] [2023-04-02 04:16:19,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682883826] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:19,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:19,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:16:19,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264058809] [2023-04-02 04:16:19,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:19,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:16:19,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:19,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:16:19,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:16:19,448 INFO L87 Difference]: Start difference. First operand 242 states and 291 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 04:16:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:20,160 INFO L93 Difference]: Finished difference Result 741 states and 971 transitions. [2023-04-02 04:16:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:16:20,160 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 04:16:20,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:20,169 INFO L225 Difference]: With dead ends: 741 [2023-04-02 04:16:20,169 INFO L226 Difference]: Without dead ends: 523 [2023-04-02 04:16:20,172 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 04:16:20,180 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 302 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:20,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 76 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:16:20,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-04-02 04:16:20,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 457. [2023-04-02 04:16:20,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 278 states have (on average 1.2697841726618706) internal successors, (353), 315 states have internal predecessors, (353), 97 states have call successors, (97), 84 states have call predecessors, (97), 81 states have return successors, (113), 76 states have call predecessors, (113), 93 states have call successors, (113) [2023-04-02 04:16:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 563 transitions. [2023-04-02 04:16:20,282 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 563 transitions. Word has length 63 [2023-04-02 04:16:20,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:20,282 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 563 transitions. [2023-04-02 04:16:20,283 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 04:16:20,283 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 563 transitions. [2023-04-02 04:16:20,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:16:20,286 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:20,287 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 04:16:20,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:16:20,287 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:20,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:20,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2038745073, now seen corresponding path program 1 times [2023-04-02 04:16:20,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:20,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890266677] [2023-04-02 04:16:20,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:20,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:16:20,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:16:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:16:20,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:16:20,357 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:16:20,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:16:20,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:16:20,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-02 04:16:20,365 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:16:20,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:16:20 BoogieIcfgContainer [2023-04-02 04:16:20,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:16:20,417 INFO L158 Benchmark]: Toolchain (without parser) took 5361.39ms. Allocated memory was 189.8MB in the beginning and 310.4MB in the end (delta: 120.6MB). Free memory was 142.9MB in the beginning and 174.5MB in the end (delta: -31.6MB). Peak memory consumption was 90.2MB. Max. memory is 8.0GB. [2023-04-02 04:16:20,417 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 189.8MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:16:20,417 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.29ms. Allocated memory is still 189.8MB. Free memory was 142.7MB in the beginning and 124.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-02 04:16:20,417 INFO L158 Benchmark]: Boogie Preprocessor took 84.08ms. Allocated memory is still 189.8MB. Free memory was 124.4MB in the beginning and 120.9MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:16:20,418 INFO L158 Benchmark]: RCFGBuilder took 763.28ms. Allocated memory was 189.8MB in the beginning and 245.4MB in the end (delta: 55.6MB). Free memory was 120.9MB in the beginning and 182.5MB in the end (delta: -61.6MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. [2023-04-02 04:16:20,418 INFO L158 Benchmark]: TraceAbstraction took 4120.66ms. Allocated memory was 245.4MB in the beginning and 310.4MB in the end (delta: 65.0MB). Free memory was 182.0MB in the beginning and 174.5MB in the end (delta: 7.5MB). Peak memory consumption was 72.5MB. Max. memory is 8.0GB. [2023-04-02 04:16:20,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 189.8MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 388.29ms. Allocated memory is still 189.8MB. Free memory was 142.7MB in the beginning and 124.4MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 84.08ms. Allocated memory is still 189.8MB. Free memory was 124.4MB in the beginning and 120.9MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 763.28ms. Allocated memory was 189.8MB in the beginning and 245.4MB in the end (delta: 55.6MB). Free memory was 120.9MB in the beginning and 182.5MB in the end (delta: -61.6MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. * TraceAbstraction took 4120.66ms. Allocated memory was 245.4MB in the beginning and 310.4MB in the end (delta: 65.0MB). Free memory was 182.0MB in the beginning and 174.5MB in the end (delta: 7.5MB). Peak memory consumption was 72.5MB. 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: 937]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L600] int pumpRunning = 0; [L601] int systemActive = 1; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; 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] [L532] int retValue_acc ; [L533] 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] [L537] 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] [L538] 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] [L539] 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] [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] 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] [L539] 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] [L539] tmp = valid_product() [L541] 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] [L543] 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] [L544] 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] [L526] 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] [L776] int splverifierCounter ; [L777] int tmp ; [L778] int tmp___0 ; [L779] int tmp___1 ; [L780] int tmp___2 ; [L783] 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] [L785] 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] [L787] 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] [L793] tmp = __VERIFIER_nondet_int() [L795] 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] [L797] 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] [L862] COND TRUE waterLevel < 2 [L863] 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] [L797] 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] [L803] tmp___0 = __VERIFIER_nondet_int() [L805] 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] [L813] tmp___2 = __VERIFIER_nondet_int() [L815] COND FALSE !(\read(tmp___2)) [L821] tmp___1 = __VERIFIER_nondet_int() [L823] 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] [L825] 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] [L755] 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] [L762] 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] [L825] 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] [L832] 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] [L607] 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] [L614] 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] [L622] 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] [L560] int tmp ; [L561] int tmp___0 ; [L562] 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] [L566] 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] [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] 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] [L566] 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] [L566] tmp = isMethaneLevelCritical() [L568] 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] [L572] 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] [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] 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] [L572] 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] [L572] tmp___0 = getWaterLevel() [L574] 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] [L576] 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] [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] 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] [L576] 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] [L576] tmp___1 = isPumpRunning() [L578] 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] [L582] 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] [L937] 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 40 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 816 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 763 mSDsluCounter, 223 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 383 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1983 IncrementalHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 383 mSolverCounterUnsat, 54 mSDtfsCounter, 1983 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=457occurred 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, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 490 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 04:16:20,439 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...