./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product30.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_spec1_product30.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 f807df90a44b5a362b78d711bb9d82091c60659923cb4423e7d2e565ee7e12b3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:17,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:17,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:17,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:17,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:17,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:17,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:17,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:17,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:17,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:17,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:17,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:17,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:17,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:17,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:17,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:17,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:17,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:17,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:17,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:17,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:17,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:17,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:17,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:17,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:17,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:17,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:17,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:17,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:17,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:17,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:17,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:17,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:17,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:17,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:17,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:17,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:17,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:17,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:17,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:17,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:17,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:17,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:17,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:17,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:17,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:17,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:17,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:17,758 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:17,758 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:17,759 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:17,759 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:17,759 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:17,760 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:17,760 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:17,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:17,760 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:17,760 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:17,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:17,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:17,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:17,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:17,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:17,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:17,761 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:17,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:17,763 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:17,763 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:17,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:17,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:17,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:17,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:17,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:17,764 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:17,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f807df90a44b5a362b78d711bb9d82091c60659923cb4423e7d2e565ee7e12b3 [2022-02-21 04:15:17,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:17,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:17,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:17,978 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:17,978 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:17,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c [2022-02-21 04:15:18,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f2d52902/dec840ce34ac48bab3315184f5b3eac6/FLAGc44fae499 [2022-02-21 04:15:18,464 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:18,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c [2022-02-21 04:15:18,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f2d52902/dec840ce34ac48bab3315184f5b3eac6/FLAGc44fae499 [2022-02-21 04:15:18,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f2d52902/dec840ce34ac48bab3315184f5b3eac6 [2022-02-21 04:15:18,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:18,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:18,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:18,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:18,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:18,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439d5472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18, skipping insertion in model container [2022-02-21 04:15:18,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:18,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:18,728 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_spec1_product30.cil.c[14361,14374] [2022-02-21 04:15:18,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:18,755 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:18,826 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_spec1_product30.cil.c[14361,14374] [2022-02-21 04:15:18,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:18,854 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:18,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18 WrapperNode [2022-02-21 04:15:18,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:18,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:18,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:18,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:18,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,919 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 78, statements flattened = 560 [2022-02-21 04:15:18,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:18,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:18,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:18,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:18,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:18,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:18,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:18,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:18,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (1/1) ... [2022-02-21 04:15:18,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:18,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:18,995 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 04:15:18,997 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 04:15:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:19,091 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:19,092 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:19,461 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:19,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:19,471 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:19,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:19 BoogieIcfgContainer [2022-02-21 04:15:19,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:19,475 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:19,476 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:19,478 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:19,478 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:19,479 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:18" (1/3) ... [2022-02-21 04:15:19,479 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7075cf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:19, skipping insertion in model container [2022-02-21 04:15:19,479 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:19,480 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:18" (2/3) ... [2022-02-21 04:15:19,480 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7075cf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:19, skipping insertion in model container [2022-02-21 04:15:19,480 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:19,480 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:19" (3/3) ... [2022-02-21 04:15:19,481 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product30.cil.c [2022-02-21 04:15:19,510 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:19,510 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:19,510 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:19,510 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:19,510 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:19,510 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:19,511 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:19,511 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:19,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 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 04:15:19,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-02-21 04:15:19,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:19,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:19,568 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:19,569 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:19,569 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:19,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 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 04:15:19,587 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-02-21 04:15:19,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:19,588 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:19,588 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:19,589 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:19,592 INFO L791 eck$LassoCheckResult]: Stem: 137#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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 10#L542true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 98#L535true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 151#L550true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 64#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 123#L113true 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~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 117#L902-2true [2022-02-21 04:15:19,593 INFO L793 eck$LassoCheckResult]: Loop: 117#L902-2true assume !false; 111#L903true assume test_~splverifierCounter~0#1 < 4; 20#L904true test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 131#L912true assume !(0 != test_~tmp~9#1); 83#L912-2true test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 140#L922true assume !(0 != test_~tmp___0~2#1); 72#L922-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 95#L932true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 90#L862true assume { :end_inline_startSystem } true; 38#L940-2true assume { :begin_inline_timeShift } true; 54#L670true assume !(0 != ~pumpRunning~0); 8#L670-2true assume !(0 != ~systemActive~0); 152#L677-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 105#L603-1true __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 91#L874true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 141#L874-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 61#L687true assume { :end_inline_timeShift } true; 117#L902-2true [2022-02-21 04:15:19,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:19,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:19,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:19,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235968257] [2022-02-21 04:15:19,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:19,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:19,704 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:19,756 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:19,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:19,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1638981887, now seen corresponding path program 1 times [2022-02-21 04:15:19,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:19,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629019088] [2022-02-21 04:15:19,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:19,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:19,812 INFO L290 TraceCheckUtils]: 0: Hoare triple {157#true} assume !false; {157#true} is VALID [2022-02-21 04:15:19,812 INFO L290 TraceCheckUtils]: 1: Hoare triple {157#true} assume test_~splverifierCounter~0#1 < 4; {157#true} is VALID [2022-02-21 04:15:19,812 INFO L290 TraceCheckUtils]: 2: Hoare triple {157#true} test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {157#true} is VALID [2022-02-21 04:15:19,812 INFO L290 TraceCheckUtils]: 3: Hoare triple {157#true} assume !(0 != test_~tmp~9#1); {157#true} is VALID [2022-02-21 04:15:19,813 INFO L290 TraceCheckUtils]: 4: Hoare triple {157#true} test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {157#true} is VALID [2022-02-21 04:15:19,813 INFO L290 TraceCheckUtils]: 5: Hoare triple {157#true} assume !(0 != test_~tmp___0~2#1); {157#true} is VALID [2022-02-21 04:15:19,813 INFO L290 TraceCheckUtils]: 6: Hoare triple {157#true} test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {157#true} is VALID [2022-02-21 04:15:19,814 INFO L290 TraceCheckUtils]: 7: Hoare triple {157#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {159#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:19,815 INFO L290 TraceCheckUtils]: 8: Hoare triple {159#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {159#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:19,816 INFO L290 TraceCheckUtils]: 9: Hoare triple {159#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {159#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:19,816 INFO L290 TraceCheckUtils]: 10: Hoare triple {159#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {159#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:19,817 INFO L290 TraceCheckUtils]: 11: Hoare triple {159#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {158#false} is VALID [2022-02-21 04:15:19,817 INFO L290 TraceCheckUtils]: 12: Hoare triple {158#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {158#false} is VALID [2022-02-21 04:15:19,817 INFO L290 TraceCheckUtils]: 13: Hoare triple {158#false} __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; {158#false} is VALID [2022-02-21 04:15:19,817 INFO L290 TraceCheckUtils]: 14: Hoare triple {158#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); {158#false} is VALID [2022-02-21 04:15:19,818 INFO L290 TraceCheckUtils]: 15: Hoare triple {158#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {158#false} is VALID [2022-02-21 04:15:19,818 INFO L290 TraceCheckUtils]: 16: Hoare triple {158#false} assume { :end_inline_timeShift } true; {158#false} is VALID [2022-02-21 04:15:19,819 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 04:15:19,819 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:19,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629019088] [2022-02-21 04:15:19,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629019088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:19,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:19,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:19,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101149373] [2022-02-21 04:15:19,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:19,826 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:19,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:19,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:19,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:19,854 INFO L87 Difference]: Start difference. First operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:15:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:20,047 INFO L93 Difference]: Finished difference Result 148 states and 189 transitions. [2022-02-21 04:15:20,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:20,048 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:15:20,063 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:20,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 189 transitions. [2022-02-21 04:15:20,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2022-02-21 04:15:20,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 138 states and 178 transitions. [2022-02-21 04:15:20,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 138 [2022-02-21 04:15:20,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 138 [2022-02-21 04:15:20,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 178 transitions. [2022-02-21 04:15:20,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:20,092 INFO L681 BuchiCegarLoop]: Abstraction has 138 states and 178 transitions. [2022-02-21 04:15:20,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 178 transitions. [2022-02-21 04:15:20,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-02-21 04:15:20,118 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:20,124 INFO L82 GeneralOperation]: Start isEquivalent. First operand 138 states and 178 transitions. Second operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 04:15:20,125 INFO L74 IsIncluded]: Start isIncluded. First operand 138 states and 178 transitions. Second operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 04:15:20,126 INFO L87 Difference]: Start difference. First operand 138 states and 178 transitions. Second operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 04:15:20,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:20,133 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2022-02-21 04:15:20,134 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2022-02-21 04:15:20,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:20,144 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:20,145 INFO L74 IsIncluded]: Start isIncluded. First operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 138 states and 178 transitions. [2022-02-21 04:15:20,149 INFO L87 Difference]: Start difference. First operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 138 states and 178 transitions. [2022-02-21 04:15:20,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:20,155 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2022-02-21 04:15:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2022-02-21 04:15:20,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:20,161 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:20,161 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:20,161 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 04:15:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2022-02-21 04:15:20,168 INFO L704 BuchiCegarLoop]: Abstraction has 138 states and 178 transitions. [2022-02-21 04:15:20,168 INFO L587 BuchiCegarLoop]: Abstraction has 138 states and 178 transitions. [2022-02-21 04:15:20,168 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:20,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 178 transitions. [2022-02-21 04:15:20,169 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2022-02-21 04:15:20,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:20,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:20,170 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:20,170 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, 1] [2022-02-21 04:15:20,170 INFO L791 eck$LassoCheckResult]: Stem: 442#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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 369#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 322#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 323#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 430#L550 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 403#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 404#L113 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~9#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 402#L902-2 [2022-02-21 04:15:20,173 INFO L793 eck$LassoCheckResult]: Loop: 402#L902-2 assume !false; 436#L903 assume test_~splverifierCounter~0#1 < 4; 342#L904 test_~tmp~9#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 343#L912 assume !(0 != test_~tmp~9#1); 418#L912-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 419#L922 assume !(0 != test_~tmp___0~2#1); 412#L922-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 413#L932 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 424#L862 assume { :end_inline_startSystem } true; 370#L940-2 assume { :begin_inline_timeShift } true; 371#L670 assume !(0 != ~pumpRunning~0); 317#L670-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret35#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 318#L728 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret34#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 410#L702-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 332#L694-3 assume { :end_inline_processEnvironment__wrappee__base } true; 333#L702-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 325#L728-1 assume { :end_inline_processEnvironment } true; 395#L677-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 435#L603-1 __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 425#L874 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 389#L874-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 401#L687 assume { :end_inline_timeShift } true; 402#L902-2 [2022-02-21 04:15:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:20,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:20,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:20,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392099364] [2022-02-21 04:15:20,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:20,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,197 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,232 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:20,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:20,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1056591901, now seen corresponding path program 1 times [2022-02-21 04:15:20,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:20,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73979965] [2022-02-21 04:15:20,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:20,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,238 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,244 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:20,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash 60250791, now seen corresponding path program 1 times [2022-02-21 04:15:20,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:20,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178039172] [2022-02-21 04:15:20,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:20,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,266 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:20,294 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:22,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:22 BoogieIcfgContainer [2022-02-21 04:15:22,922 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:22,923 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:22,923 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:22,923 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:22,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:19" (3/4) ... [2022-02-21 04:15:22,926 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:22,987 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:22,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:22,991 INFO L158 Benchmark]: Toolchain (without parser) took 4503.60ms. Allocated memory was 90.2MB in the beginning and 151.0MB in the end (delta: 60.8MB). Free memory was 56.6MB in the beginning and 53.5MB in the end (delta: 3.1MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,991 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:22,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.64ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 54.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.76ms. Allocated memory is still 90.2MB. Free memory was 54.6MB in the beginning and 50.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,992 INFO L158 Benchmark]: Boogie Preprocessor took 41.02ms. Allocated memory is still 90.2MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,993 INFO L158 Benchmark]: RCFGBuilder took 510.88ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 48.3MB in the beginning and 91.4MB in the end (delta: -43.1MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,993 INFO L158 Benchmark]: BuchiAutomizer took 3446.89ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.4MB in the beginning and 55.5MB in the end (delta: 35.9MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,994 INFO L158 Benchmark]: Witness Printer took 66.50ms. Allocated memory is still 151.0MB. Free memory was 55.5MB in the beginning and 53.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:22,995 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 0.19ms. Allocated memory is still 90.2MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.64ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 54.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.76ms. Allocated memory is still 90.2MB. Free memory was 54.6MB in the beginning and 50.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.02ms. Allocated memory is still 90.2MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 510.88ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 48.3MB in the beginning and 91.4MB in the end (delta: -43.1MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3446.89ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.4MB in the beginning and 55.5MB in the end (delta: 35.9MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. * Witness Printer took 66.50ms. Allocated memory is still 151.0MB. Free memory was 55.5MB in the beginning and 53.5MB in the end (delta: 2.0MB). 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 138 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 138 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184 mSDsluCounter, 186 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 186 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 902]: 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@22b151b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d9f53ef=29, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20a5627d=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a83bb7d=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bf6c18b=0, tmp___0=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, \result=0, retValue_acc=1, \result=1, tmp___2=29, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b9ebede=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27860fe3=0, tmp=1, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16070a1c=0, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a9699ab=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 902]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L560] int waterLevel = 1; [L561] int methaneLevelCritical = 0; [L662] int pumpRunning = 0; [L663] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L893] int splverifierCounter ; [L894] int tmp ; [L895] int tmp___0 ; [L896] int tmp___1 ; [L897] int tmp___2 ; [L900] splverifierCounter = 0 Loop: [L902] COND TRUE 1 [L904] COND TRUE splverifierCounter < 4 [L910] tmp = __VERIFIER_nondet_int() [L912] COND FALSE !(\read(tmp)) [L920] tmp___0 = __VERIFIER_nondet_int() [L922] COND FALSE !(\read(tmp___0)) [L930] tmp___2 = __VERIFIER_nondet_int() [L932] COND TRUE \read(tmp___2) [L934] CALL startSystem() [L861] systemActive = 1 [L934] RET startSystem() [L947] CALL timeShift() [L670] COND FALSE !(\read(pumpRunning)) [L677] COND TRUE \read(systemActive) [L679] CALL processEnvironment() [L725] int tmp ; [L728] COND FALSE !(\read(pumpRunning)) [L743] CALL processEnvironment__wrappee__methaneQuery() [L699] int tmp ; [L702] COND FALSE !(\read(pumpRunning)) [L717] FCALL processEnvironment__wrappee__base() [L743] RET processEnvironment__wrappee__methaneQuery() [L679] RET processEnvironment() [L685] CALL __utac_acc__Specification1_spec__1() [L867] int tmp ; [L868] int tmp___0 ; [L872] CALL, EXPR isMethaneLevelCritical() [L599] int retValue_acc ; [L602] retValue_acc = methaneLevelCritical [L603] return (retValue_acc); [L872] RET, EXPR isMethaneLevelCritical() [L872] tmp = isMethaneLevelCritical() [L874] COND FALSE !(\read(tmp)) [L685] RET __utac_acc__Specification1_spec__1() [L947] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:23,031 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)