./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5af7a19aabc47c6ad0d023db96d81a1e5e3db737faffc67c3935346aa9890fbf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:54,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:54,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:54,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:54,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:54,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:54,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:54,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:54,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:54,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:54,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:54,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:54,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:54,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:54,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:54,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:54,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:54,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:54,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:54,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:54,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:54,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:54,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:54,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:54,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:54,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:54,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:54,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:54,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:54,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:54,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:54,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:54,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:54,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:54,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:54,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:54,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:54,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:54,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:54,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:54,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:54,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:54,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:54,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:54,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:54,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:54,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:54,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:54,595 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:54,595 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:54,595 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:54,595 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:54,596 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:54,596 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:54,596 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:54,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:54,597 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:54,597 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:54,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:54,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:54,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:54,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:54,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:54,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:54,601 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:54,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:54,601 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:54,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:54,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:54,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:54,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:54,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:54,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:54,607 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:54,607 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5af7a19aabc47c6ad0d023db96d81a1e5e3db737faffc67c3935346aa9890fbf [2022-02-21 04:16:54,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:54,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:54,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:54,959 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:54,960 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:54,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2022-02-21 04:16:55,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929c00c6c/440c47ec40a6470fa228f5e719f79b2e/FLAGd79a0e644 [2022-02-21 04:16:55,562 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:55,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2022-02-21 04:16:55,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929c00c6c/440c47ec40a6470fa228f5e719f79b2e/FLAGd79a0e644 [2022-02-21 04:16:56,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929c00c6c/440c47ec40a6470fa228f5e719f79b2e [2022-02-21 04:16:56,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:56,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:56,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:56,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:56,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:56,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66db4df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56, skipping insertion in model container [2022-02-21 04:16:56,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:56,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:56,272 WARN L230 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_product25.cil.c[2191,2204] [2022-02-21 04:16:56,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:56,405 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:56,423 WARN L230 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_product25.cil.c[2191,2204] [2022-02-21 04:16:56,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:56,513 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:56,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56 WrapperNode [2022-02-21 04:16:56,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:56,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:56,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:56,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:56,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,576 INFO L137 Inliner]: procedures = 53, calls = 152, calls flagged for inlining = 49, calls inlined = 50, statements flattened = 410 [2022-02-21 04:16:56,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:56,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:56,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:56,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:56,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:56,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:56,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:56,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:56,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:56,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:56,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:56,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:56,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:56,721 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:56,722 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:57,037 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:57,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:57,043 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:57,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:57 BoogieIcfgContainer [2022-02-21 04:16:57,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:57,045 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:57,045 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:57,050 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:57,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:57,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:56" (1/3) ... [2022-02-21 04:16:57,051 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65e46aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:57, skipping insertion in model container [2022-02-21 04:16:57,051 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:57,051 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (2/3) ... [2022-02-21 04:16:57,052 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65e46aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:57, skipping insertion in model container [2022-02-21 04:16:57,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:57,052 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:57" (3/3) ... [2022-02-21 04:16:57,053 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2022-02-21 04:16:57,093 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:57,093 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:57,093 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:57,093 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:57,093 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:57,094 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:57,094 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:57,094 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:57,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,152 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2022-02-21 04:16:57,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:57,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:57,157 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,157 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,157 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:57,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,174 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2022-02-21 04:16:57,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:57,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:57,175 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,175 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,182 INFO L791 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 33#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 107#L582true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 14#L575true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 37#L590true main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 101#L680true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 78#L656true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 67#L876-2true [2022-02-21 04:16:57,183 INFO L793 eck$LassoCheckResult]: Loop: 67#L876-2true assume !false; 23#L877true assume test_~splverifierCounter~0#1 < 4; 40#L878true test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 109#L886true assume !(0 != test_~tmp~8#1); 13#L886-2true test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 10#L896true assume !(0 != test_~tmp___0~2#1); 55#L896-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 86#L906true assume 0 != test_~tmp___2~0#1; 57#L912-2true assume { :begin_inline_timeShift } true; 11#L703true assume !(0 != ~pumpRunning~0); 77#L703-2true assume !(0 != ~systemActive~0); 48#L710-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 54#L511true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 6#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 106#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 28#L720true assume { :end_inline_timeShift } true; 67#L876-2true [2022-02-21 04:16:57,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:57,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:57,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:57,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082387723] [2022-02-21 04:16:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:57,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,321 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,372 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:57,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash -828899402, now seen corresponding path program 1 times [2022-02-21 04:16:57,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:57,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224684378] [2022-02-21 04:16:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:57,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,393 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,401 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:57,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash 526519674, now seen corresponding path program 1 times [2022-02-21 04:16:57,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:57,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399005762] [2022-02-21 04:16:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:57,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:57,538 INFO L290 TraceCheckUtils]: 0: Hoare triple {116#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; {118#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:57,539 INFO L290 TraceCheckUtils]: 1: Hoare triple {118#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {118#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:57,539 INFO L290 TraceCheckUtils]: 2: Hoare triple {118#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {118#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:57,540 INFO L290 TraceCheckUtils]: 3: Hoare triple {118#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; {119#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:57,540 INFO L290 TraceCheckUtils]: 4: Hoare triple {119#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; {120#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} is VALID [2022-02-21 04:16:57,540 INFO L290 TraceCheckUtils]: 5: Hoare triple {120#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,541 INFO L290 TraceCheckUtils]: 6: Hoare triple {121#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,542 INFO L290 TraceCheckUtils]: 7: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !false; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,542 INFO L290 TraceCheckUtils]: 8: Hoare triple {121#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,543 INFO L290 TraceCheckUtils]: 9: Hoare triple {121#(not (= 0 ~systemActive~0))} test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,543 INFO L290 TraceCheckUtils]: 10: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~8#1); {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,544 INFO L290 TraceCheckUtils]: 11: Hoare triple {121#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,544 INFO L290 TraceCheckUtils]: 12: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,545 INFO L290 TraceCheckUtils]: 13: Hoare triple {121#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,545 INFO L290 TraceCheckUtils]: 14: Hoare triple {121#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,546 INFO L290 TraceCheckUtils]: 15: Hoare triple {121#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,546 INFO L290 TraceCheckUtils]: 16: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,547 INFO L290 TraceCheckUtils]: 17: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {117#false} is VALID [2022-02-21 04:16:57,548 INFO L290 TraceCheckUtils]: 18: Hoare triple {117#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {117#false} is VALID [2022-02-21 04:16:57,548 INFO L290 TraceCheckUtils]: 19: Hoare triple {117#false} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {117#false} is VALID [2022-02-21 04:16:57,548 INFO L290 TraceCheckUtils]: 20: Hoare triple {117#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {117#false} is VALID [2022-02-21 04:16:57,548 INFO L290 TraceCheckUtils]: 21: Hoare triple {117#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {117#false} is VALID [2022-02-21 04:16:57,549 INFO L290 TraceCheckUtils]: 22: Hoare triple {117#false} assume { :end_inline_timeShift } true; {117#false} is VALID [2022-02-21 04:16:57,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:57,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:57,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399005762] [2022-02-21 04:16:57,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399005762] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:57,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:57,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:57,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846423972] [2022-02-21 04:16:57,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:57,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:57,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:57,680 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:57,871 INFO L93 Difference]: Finished difference Result 105 states and 133 transitions. [2022-02-21 04:16:57,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:57,872 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,891 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:57,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 133 transitions. [2022-02-21 04:16:57,897 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-02-21 04:16:57,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 95 states and 123 transitions. [2022-02-21 04:16:57,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2022-02-21 04:16:57,902 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2022-02-21 04:16:57,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 123 transitions. [2022-02-21 04:16:57,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:57,903 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 123 transitions. [2022-02-21 04:16:57,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 123 transitions. [2022-02-21 04:16:57,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-02-21 04:16:57,930 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:57,931 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states and 123 transitions. Second operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,931 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states and 123 transitions. Second operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,933 INFO L87 Difference]: Start difference. First operand 95 states and 123 transitions. Second operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:57,935 INFO L93 Difference]: Finished difference Result 95 states and 123 transitions. [2022-02-21 04:16:57,936 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 123 transitions. [2022-02-21 04:16:57,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:57,937 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:57,937 INFO L74 IsIncluded]: Start isIncluded. First operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 95 states and 123 transitions. [2022-02-21 04:16:57,937 INFO L87 Difference]: Start difference. First operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 95 states and 123 transitions. [2022-02-21 04:16:57,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:57,940 INFO L93 Difference]: Finished difference Result 95 states and 123 transitions. [2022-02-21 04:16:57,940 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 123 transitions. [2022-02-21 04:16:57,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:57,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:57,941 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:57,941 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:57,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 123 transitions. [2022-02-21 04:16:57,944 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 123 transitions. [2022-02-21 04:16:57,944 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 123 transitions. [2022-02-21 04:16:57,944 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:57,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 123 transitions. [2022-02-21 04:16:57,945 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-02-21 04:16:57,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:57,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:57,946 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,946 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,946 INFO L791 eck$LassoCheckResult]: Stem: 324#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 316#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 317#L582 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 271#L575 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 272#L590 main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 320#L680 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 306#L656 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 295#L876-2 [2022-02-21 04:16:57,946 INFO L793 eck$LassoCheckResult]: Loop: 295#L876-2 assume !false; 287#L877 assume test_~splverifierCounter~0#1 < 4; 288#L878 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 322#L886 assume !(0 != test_~tmp~8#1); 268#L886-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 263#L896 assume !(0 != test_~tmp___0~2#1); 243#L896-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 244#L906 assume 0 != test_~tmp___2~0#1; 249#L912-2 assume { :begin_inline_timeShift } true; 250#L703 assume !(0 != ~pumpRunning~0); 260#L703-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 305#L735 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 247#L727-1 assume { :end_inline_processEnvironment__wrappee__base } true; 248#L735-1 assume { :end_inline_processEnvironment } true; 325#L710-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 241#L511 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 242#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 245#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 311#L720 assume { :end_inline_timeShift } true; 295#L876-2 [2022-02-21 04:16:57,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:57,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:57,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:57,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832939768] [2022-02-21 04:16:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:57,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,956 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,964 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:57,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:57,965 INFO L85 PathProgramCache]: Analyzing trace with hash -646847051, now seen corresponding path program 1 times [2022-02-21 04:16:57,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:57,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520419301] [2022-02-21 04:16:57,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:57,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,970 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,973 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:57,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:57,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1655296369, now seen corresponding path program 1 times [2022-02-21 04:16:57,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:57,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137304321] [2022-02-21 04:16:57,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:57,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:58,007 INFO L290 TraceCheckUtils]: 0: Hoare triple {523#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,008 INFO L290 TraceCheckUtils]: 1: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,008 INFO L290 TraceCheckUtils]: 2: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,009 INFO L290 TraceCheckUtils]: 3: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,009 INFO L290 TraceCheckUtils]: 4: Hoare triple {525#(= ~methaneLevelCritical~0 0)} main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,009 INFO L290 TraceCheckUtils]: 5: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,010 INFO L290 TraceCheckUtils]: 6: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,010 INFO L290 TraceCheckUtils]: 7: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !false; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,010 INFO L290 TraceCheckUtils]: 8: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,011 INFO L290 TraceCheckUtils]: 9: Hoare triple {525#(= ~methaneLevelCritical~0 0)} test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,011 INFO L290 TraceCheckUtils]: 10: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~8#1); {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,012 INFO L290 TraceCheckUtils]: 11: Hoare triple {525#(= ~methaneLevelCritical~0 0)} test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,012 INFO L290 TraceCheckUtils]: 12: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~2#1); {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,012 INFO L290 TraceCheckUtils]: 13: Hoare triple {525#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,013 INFO L290 TraceCheckUtils]: 14: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,013 INFO L290 TraceCheckUtils]: 15: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,013 INFO L290 TraceCheckUtils]: 16: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,014 INFO L290 TraceCheckUtils]: 17: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,014 INFO L290 TraceCheckUtils]: 18: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,014 INFO L290 TraceCheckUtils]: 19: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,015 INFO L290 TraceCheckUtils]: 20: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,015 INFO L290 TraceCheckUtils]: 21: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {526#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:58,016 INFO L290 TraceCheckUtils]: 22: Hoare triple {526#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {527#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} is VALID [2022-02-21 04:16:58,016 INFO L290 TraceCheckUtils]: 23: Hoare triple {527#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {524#false} is VALID [2022-02-21 04:16:58,016 INFO L290 TraceCheckUtils]: 24: Hoare triple {524#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {524#false} is VALID [2022-02-21 04:16:58,016 INFO L290 TraceCheckUtils]: 25: Hoare triple {524#false} assume { :end_inline_timeShift } true; {524#false} is VALID [2022-02-21 04:16:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:58,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:58,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137304321] [2022-02-21 04:16:58,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137304321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:58,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:58,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:58,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759090953] [2022-02-21 04:16:58,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:58,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:58,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:58,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:58,098 INFO L87 Difference]: Start difference. First operand 95 states and 123 transitions. cyclomatic complexity: 30 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:58,549 INFO L93 Difference]: Finished difference Result 337 states and 441 transitions. [2022-02-21 04:16:58,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:58,549 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,569 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:58,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 337 states and 441 transitions. [2022-02-21 04:16:58,579 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2022-02-21 04:16:58,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 337 states to 337 states and 441 transitions. [2022-02-21 04:16:58,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 337 [2022-02-21 04:16:58,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 337 [2022-02-21 04:16:58,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 337 states and 441 transitions. [2022-02-21 04:16:58,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:58,590 INFO L681 BuchiCegarLoop]: Abstraction has 337 states and 441 transitions. [2022-02-21 04:16:58,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states and 441 transitions. [2022-02-21 04:16:58,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 183. [2022-02-21 04:16:58,597 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:58,597 INFO L82 GeneralOperation]: Start isEquivalent. First operand 337 states and 441 transitions. Second operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,598 INFO L74 IsIncluded]: Start isIncluded. First operand 337 states and 441 transitions. Second operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,598 INFO L87 Difference]: Start difference. First operand 337 states and 441 transitions. Second operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:58,607 INFO L93 Difference]: Finished difference Result 337 states and 441 transitions. [2022-02-21 04:16:58,607 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 441 transitions. [2022-02-21 04:16:58,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:58,608 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:58,609 INFO L74 IsIncluded]: Start isIncluded. First operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 337 states and 441 transitions. [2022-02-21 04:16:58,609 INFO L87 Difference]: Start difference. First operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 337 states and 441 transitions. [2022-02-21 04:16:58,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:58,616 INFO L93 Difference]: Finished difference Result 337 states and 441 transitions. [2022-02-21 04:16:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 441 transitions. [2022-02-21 04:16:58,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:58,617 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:58,617 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:58,618 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 235 transitions. [2022-02-21 04:16:58,621 INFO L704 BuchiCegarLoop]: Abstraction has 183 states and 235 transitions. [2022-02-21 04:16:58,621 INFO L587 BuchiCegarLoop]: Abstraction has 183 states and 235 transitions. [2022-02-21 04:16:58,621 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:58,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 235 transitions. [2022-02-21 04:16:58,622 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2022-02-21 04:16:58,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:58,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:58,623 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:58,623 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:58,623 INFO L791 eck$LassoCheckResult]: Stem: 985#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 974#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret36#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 975#L582 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 916#L575 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 917#L590 main_#t~ret36#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret36#1;havoc main_#t~ret36#1; 978#L680 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 956#L656 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 957#L876-2 [2022-02-21 04:16:58,623 INFO L793 eck$LassoCheckResult]: Loop: 957#L876-2 assume !false; 1031#L877 assume test_~splverifierCounter~0#1 < 4; 982#L878 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 983#L886 assume !(0 != test_~tmp~8#1); 912#L886-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 913#L896 assume !(0 != test_~tmp___0~2#1); 1050#L896-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1049#L906 assume 0 != test_~tmp___2~0#1; 1047#L912-2 assume { :begin_inline_timeShift } true; 1044#L703 assume !(0 != ~pumpRunning~0); 1041#L703-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1039#L735 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1037#L727-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1035#L735-1 assume { :end_inline_processEnvironment } true; 1034#L710-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 881#L511 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 882#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 980#L543 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 981#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1033#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1032#L720 assume { :end_inline_timeShift } true; 957#L876-2 [2022-02-21 04:16:58,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:58,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:58,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:58,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021806066] [2022-02-21 04:16:58,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:58,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,638 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:58,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:58,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1151493224, now seen corresponding path program 1 times [2022-02-21 04:16:58,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:58,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499862302] [2022-02-21 04:16:58,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:58,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,643 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,646 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:58,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1603162404, now seen corresponding path program 1 times [2022-02-21 04:16:58,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:58,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531364638] [2022-02-21 04:16:58,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:58,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,655 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,663 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:01,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:01 BoogieIcfgContainer [2022-02-21 04:17:01,009 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:01,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:01,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:01,010 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:01,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:57" (3/4) ... [2022-02-21 04:17:01,012 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:01,043 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:01,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:01,044 INFO L158 Benchmark]: Toolchain (without parser) took 5011.22ms. Allocated memory was 102.8MB in the beginning and 176.2MB in the end (delta: 73.4MB). Free memory was 69.1MB in the beginning and 89.0MB in the end (delta: -19.9MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,045 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory was 58.8MB in the beginning and 58.8MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:01,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.46ms. Allocated memory was 102.8MB in the beginning and 146.8MB in the end (delta: 44.0MB). Free memory was 68.9MB in the beginning and 110.2MB in the end (delta: -41.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.50ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 106.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,046 INFO L158 Benchmark]: Boogie Preprocessor took 20.95ms. Allocated memory is still 146.8MB. Free memory was 106.6MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,046 INFO L158 Benchmark]: RCFGBuilder took 445.94ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 84.3MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,046 INFO L158 Benchmark]: BuchiAutomizer took 3964.64ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 84.3MB in the beginning and 91.1MB in the end (delta: -6.8MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,047 INFO L158 Benchmark]: Witness Printer took 33.44ms. Allocated memory is still 176.2MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory was 58.8MB in the beginning and 58.8MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.46ms. Allocated memory was 102.8MB in the beginning and 146.8MB in the end (delta: 44.0MB). Free memory was 68.9MB in the beginning and 110.2MB in the end (delta: -41.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.50ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 106.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.95ms. Allocated memory is still 146.8MB. Free memory was 106.6MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.94ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 84.3MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3964.64ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 84.3MB in the beginning and 91.1MB in the end (delta: -6.8MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * Witness Printer took 33.44ms. Allocated memory is still 176.2MB. Free memory was 91.1MB in the beginning and 89.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 154 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 828 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 828 mSDsluCounter, 858 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 554 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 304 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 876]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@183a5988=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61773e20=29, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9445c7b=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c2bec97=0, NULL=1, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=1, retValue_acc=0, \result=1, retValue_acc=0, tmp___1=0, tmp___2=29, tmp=1, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@156c2ca1=0, \result=0, tmp=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12580978=0, tmp___1=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ee5b5cf=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5008dc16=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d37e075=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 876]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L468] int waterLevel = 1; [L469] int methaneLevelCritical = 0; [L595] int cleanupTimeShifts = 4; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L671] int retValue_acc ; [L672] int tmp ; [L676] FCALL select_helpers() [L677] FCALL select_features() [L678] CALL, EXPR valid_product() [L586] int retValue_acc ; [L589] retValue_acc = 1 [L590] return (retValue_acc); [L678] RET, EXPR valid_product() [L678] tmp = valid_product() [L680] COND TRUE \read(tmp) [L682] FCALL setup() [L683] CALL runTest() [L665] CALL test() [L867] int splverifierCounter ; [L868] int tmp ; [L869] int tmp___0 ; [L870] int tmp___1 ; [L871] int tmp___2 ; [L874] splverifierCounter = 0 Loop: [L876] COND TRUE 1 [L878] COND TRUE splverifierCounter < 4 [L884] tmp = __VERIFIER_nondet_int() [L886] COND FALSE !(\read(tmp)) [L894] tmp___0 = __VERIFIER_nondet_int() [L896] COND FALSE !(\read(tmp___0)) [L904] tmp___2 = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp___2) [L919] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND TRUE \read(systemActive) [L712] CALL processEnvironment() [L732] int tmp ; [L735] COND FALSE !(\read(pumpRunning)) [L750] FCALL processEnvironment__wrappee__base() [L712] RET processEnvironment() [L718] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L507] int retValue_acc ; [L510] retValue_acc = methaneLevelCritical [L511] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L539] int retValue_acc ; [L542] retValue_acc = waterLevel [L543] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L718] RET __utac_acc__Specification3_spec__1() [L919] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:01,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)