./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product55.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_product55.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 087203bb0b91dea113f8c68390dfc2d05a2771becdd7fa7a30895c447c478d7f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:39,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:39,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:39,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:39,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:39,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:39,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:39,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:39,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:39,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:39,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:39,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:39,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:39,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:39,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:39,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:39,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:39,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:39,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:39,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:39,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:39,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:39,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:39,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:39,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:39,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:39,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:39,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:39,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:39,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:39,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:39,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:39,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:39,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:39,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:39,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:39,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:39,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:39,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:39,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:39,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:39,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:39,784 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:39,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:39,785 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:39,785 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:39,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:39,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:39,787 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:39,787 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:39,787 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:39,788 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:39,788 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:39,788 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:39,789 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:39,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:39,789 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:39,789 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:39,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:39,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:39,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:39,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:39,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:39,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:39,790 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:39,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:39,791 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:39,791 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:39,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:39,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:39,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:39,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:39,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:39,793 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:39,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 087203bb0b91dea113f8c68390dfc2d05a2771becdd7fa7a30895c447c478d7f [2022-02-21 04:15:39,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:40,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:40,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:40,021 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:40,021 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:40,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2022-02-21 04:15:40,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f468fcc94/d0e09aa1a63742869d2a5e04c89c0daf/FLAGaa1f490f0 [2022-02-21 04:15:40,548 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:40,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2022-02-21 04:15:40,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f468fcc94/d0e09aa1a63742869d2a5e04c89c0daf/FLAGaa1f490f0 [2022-02-21 04:15:40,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f468fcc94/d0e09aa1a63742869d2a5e04c89c0daf [2022-02-21 04:15:40,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:40,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:40,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:40,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:40,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:40,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:40" (1/1) ... [2022-02-21 04:15:40,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fed7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:40, skipping insertion in model container [2022-02-21 04:15:40,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:40" (1/1) ... [2022-02-21 04:15:40,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:40,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:41,243 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_product55.cil.c[7923,7936] [2022-02-21 04:15:41,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:41,326 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:41,381 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_product55.cil.c[7923,7936] [2022-02-21 04:15:41,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:41,422 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:41,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41 WrapperNode [2022-02-21 04:15:41,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:41,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:41,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:41,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:41,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,520 INFO L137 Inliner]: procedures = 57, calls = 160, calls flagged for inlining = 57, calls inlined = 139, statements flattened = 1008 [2022-02-21 04:15:41,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:41,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:41,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:41,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:41,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:41,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:41,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:41,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:41,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (1/1) ... [2022-02-21 04:15:41,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:41,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:41,604 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 04:15:41,609 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 04:15:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:41,705 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:41,706 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:42,446 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:42,465 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:42,465 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:42,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:42 BoogieIcfgContainer [2022-02-21 04:15:42,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:42,470 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:42,470 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:42,473 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:42,474 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:42,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:40" (1/3) ... [2022-02-21 04:15:42,475 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a6e6571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:42, skipping insertion in model container [2022-02-21 04:15:42,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:42,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:41" (2/3) ... [2022-02-21 04:15:42,476 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a6e6571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:42, skipping insertion in model container [2022-02-21 04:15:42,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:42,476 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:42" (3/3) ... [2022-02-21 04:15:42,477 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2022-02-21 04:15:42,524 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:42,525 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:42,525 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:42,525 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:42,525 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:42,525 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:42,525 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:42,526 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:42,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 274 states, 273 states have (on average 1.36996336996337) internal successors, (374), 273 states have internal predecessors, (374), 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 04:15:42,634 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2022-02-21 04:15:42,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:42,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:42,641 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:42,641 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 04:15:42,641 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:42,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 274 states, 273 states have (on average 1.36996336996337) internal successors, (374), 273 states have internal predecessors, (374), 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 04:15:42,661 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2022-02-21 04:15:42,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:42,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:42,662 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:42,662 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 04:15:42,675 INFO L791 eck$LassoCheckResult]: Stem: 263#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 175#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 194#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 269#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 26#L83true main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 262#L603true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 3#L580true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 227#L103-2true [2022-02-21 04:15:42,676 INFO L793 eck$LassoCheckResult]: Loop: 227#L103-2true assume !false; 19#L104true assume test_~splverifierCounter~0#1 < 4; 153#L105true test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 245#L113true assume !(0 != test_~tmp~0#1); 181#L113-2true test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 157#L123true assume !(0 != test_~tmp___0~0#1); 49#L123-2true test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 243#L133true assume 0 != test_~tmp___2~0#1; 152#L139-2true assume { :begin_inline_timeShift } true; 186#L177true assume !(0 != ~pumpRunning~0); 264#L177-2true assume !(0 != ~systemActive~0); 117#L184-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_#t~ret30#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#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; 172#L452-1true __utac_acc__Specification1_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret29#1;havoc __utac_acc__Specification1_spec__1_#t~ret29#1; 119#L625true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 225#L625-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 228#L194true assume { :end_inline_timeShift } true; 227#L103-2true [2022-02-21 04:15:42,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:42,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:42,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:42,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495676680] [2022-02-21 04:15:42,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:42,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:42,800 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:42,882 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:42,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:42,884 INFO L85 PathProgramCache]: Analyzing trace with hash -397646076, now seen corresponding path program 1 times [2022-02-21 04:15:42,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:42,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761122548] [2022-02-21 04:15:42,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:42,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:42,908 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:42,914 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:42,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash 957773000, now seen corresponding path program 1 times [2022-02-21 04:15:42,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:42,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882906329] [2022-02-21 04:15:42,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:42,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:43,083 INFO L290 TraceCheckUtils]: 0: Hoare triple {282#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {284#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:43,084 INFO L290 TraceCheckUtils]: 1: Hoare triple {284#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {284#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:43,085 INFO L290 TraceCheckUtils]: 2: Hoare triple {284#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {284#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:43,085 INFO L290 TraceCheckUtils]: 3: Hoare triple {284#(= 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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {285#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:43,086 INFO L290 TraceCheckUtils]: 4: Hoare triple {285#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret28#1;havoc main_#t~ret28#1; {286#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} is VALID [2022-02-21 04:15:43,087 INFO L290 TraceCheckUtils]: 5: Hoare triple {286#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,087 INFO L290 TraceCheckUtils]: 6: Hoare triple {287#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,088 INFO L290 TraceCheckUtils]: 7: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !false; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,088 INFO L290 TraceCheckUtils]: 8: Hoare triple {287#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,089 INFO L290 TraceCheckUtils]: 9: Hoare triple {287#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,090 INFO L290 TraceCheckUtils]: 10: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,090 INFO L290 TraceCheckUtils]: 11: Hoare triple {287#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,091 INFO L290 TraceCheckUtils]: 12: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,092 INFO L290 TraceCheckUtils]: 13: Hoare triple {287#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,092 INFO L290 TraceCheckUtils]: 14: Hoare triple {287#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,093 INFO L290 TraceCheckUtils]: 15: Hoare triple {287#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,093 INFO L290 TraceCheckUtils]: 16: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {287#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:43,094 INFO L290 TraceCheckUtils]: 17: Hoare triple {287#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {283#false} is VALID [2022-02-21 04:15:43,094 INFO L290 TraceCheckUtils]: 18: Hoare triple {283#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_#t~ret30#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#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; {283#false} is VALID [2022-02-21 04:15:43,094 INFO L290 TraceCheckUtils]: 19: Hoare triple {283#false} __utac_acc__Specification1_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret29#1;havoc __utac_acc__Specification1_spec__1_#t~ret29#1; {283#false} is VALID [2022-02-21 04:15:43,095 INFO L290 TraceCheckUtils]: 20: Hoare triple {283#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); {283#false} is VALID [2022-02-21 04:15:43,095 INFO L290 TraceCheckUtils]: 21: Hoare triple {283#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {283#false} is VALID [2022-02-21 04:15:43,095 INFO L290 TraceCheckUtils]: 22: Hoare triple {283#false} assume { :end_inline_timeShift } true; {283#false} is VALID [2022-02-21 04:15:43,097 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 04:15:43,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:43,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882906329] [2022-02-21 04:15:43,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882906329] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:43,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:43,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:43,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645788324] [2022-02-21 04:15:43,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:43,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:43,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:43,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:43,250 INFO L87 Difference]: Start difference. First operand has 274 states, 273 states have (on average 1.36996336996337) internal successors, (374), 273 states have internal predecessors, (374), 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 04:15:44,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:44,656 INFO L93 Difference]: Finished difference Result 599 states and 797 transitions. [2022-02-21 04:15:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:44,658 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 04:15:44,680 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 04:15:44,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 599 states and 797 transitions. [2022-02-21 04:15:44,721 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 391 [2022-02-21 04:15:44,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 599 states to 569 states and 767 transitions. [2022-02-21 04:15:44,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 569 [2022-02-21 04:15:44,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 569 [2022-02-21 04:15:44,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 569 states and 767 transitions. [2022-02-21 04:15:44,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:44,767 INFO L681 BuchiCegarLoop]: Abstraction has 569 states and 767 transitions. [2022-02-21 04:15:44,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states and 767 transitions. [2022-02-21 04:15:44,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 313. [2022-02-21 04:15:44,819 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:44,821 INFO L82 GeneralOperation]: Start isEquivalent. First operand 569 states and 767 transitions. Second operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 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 04:15:44,823 INFO L74 IsIncluded]: Start isIncluded. First operand 569 states and 767 transitions. Second operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 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 04:15:44,824 INFO L87 Difference]: Start difference. First operand 569 states and 767 transitions. Second operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 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 04:15:44,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:44,850 INFO L93 Difference]: Finished difference Result 569 states and 767 transitions. [2022-02-21 04:15:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 767 transitions. [2022-02-21 04:15:44,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:44,855 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:44,856 INFO L74 IsIncluded]: Start isIncluded. First operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 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 569 states and 767 transitions. [2022-02-21 04:15:44,857 INFO L87 Difference]: Start difference. First operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 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 569 states and 767 transitions. [2022-02-21 04:15:44,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:44,878 INFO L93 Difference]: Finished difference Result 569 states and 767 transitions. [2022-02-21 04:15:44,878 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 767 transitions. [2022-02-21 04:15:44,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:44,880 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:44,881 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:44,881 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:44,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 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 04:15:44,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 421 transitions. [2022-02-21 04:15:44,892 INFO L704 BuchiCegarLoop]: Abstraction has 313 states and 421 transitions. [2022-02-21 04:15:44,893 INFO L587 BuchiCegarLoop]: Abstraction has 313 states and 421 transitions. [2022-02-21 04:15:44,893 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:44,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 421 transitions. [2022-02-21 04:15:44,895 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 216 [2022-02-21 04:15:44,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:44,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:44,896 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:44,896 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 04:15:44,896 INFO L791 eck$LassoCheckResult]: Stem: 1152#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1129#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1138#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 940#L83 main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 941#L603 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 891#L580 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 892#L103-2 [2022-02-21 04:15:44,896 INFO L793 eck$LassoCheckResult]: Loop: 892#L103-2 assume !false; 925#L104 assume test_~splverifierCounter~0#1 < 4; 926#L105 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1115#L113 assume !(0 != test_~tmp~0#1); 1008#L113-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1117#L123 assume !(0 != test_~tmp___0~0#1); 984#L123-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 985#L133 assume 0 != test_~tmp___2~0#1; 955#L139-2 assume { :begin_inline_timeShift } true; 1114#L177 assume !(0 != ~pumpRunning~0); 1104#L177-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1096#L261 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#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; 1097#L452 isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 1139#L305 processEnvironment_#t~ret11#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1; 1020#L265 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1022#L295-1 assume { :end_inline_deactivatePump } true; 963#L261-1 assume { :end_inline_processEnvironment } true; 1073#L184-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_#t~ret30#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#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; 1074#L452-1 __utac_acc__Specification1_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret29#1;havoc __utac_acc__Specification1_spec__1_#t~ret29#1; 1075#L625 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 989#L625-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1144#L194 assume { :end_inline_timeShift } true; 892#L103-2 [2022-02-21 04:15:44,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:44,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:44,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:44,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380672908] [2022-02-21 04:15:44,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:44,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:44,912 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:44,926 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:44,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:44,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1505606317, now seen corresponding path program 1 times [2022-02-21 04:15:44,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:44,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451106365] [2022-02-21 04:15:44,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:44,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:44,944 INFO L290 TraceCheckUtils]: 0: Hoare triple {2347#true} assume !false; {2347#true} is VALID [2022-02-21 04:15:44,945 INFO L290 TraceCheckUtils]: 1: Hoare triple {2347#true} assume test_~splverifierCounter~0#1 < 4; {2347#true} is VALID [2022-02-21 04:15:44,945 INFO L290 TraceCheckUtils]: 2: Hoare triple {2347#true} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {2347#true} is VALID [2022-02-21 04:15:44,945 INFO L290 TraceCheckUtils]: 3: Hoare triple {2347#true} assume !(0 != test_~tmp~0#1); {2347#true} is VALID [2022-02-21 04:15:44,946 INFO L290 TraceCheckUtils]: 4: Hoare triple {2347#true} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {2347#true} is VALID [2022-02-21 04:15:44,946 INFO L290 TraceCheckUtils]: 5: Hoare triple {2347#true} assume !(0 != test_~tmp___0~0#1); {2347#true} is VALID [2022-02-21 04:15:44,946 INFO L290 TraceCheckUtils]: 6: Hoare triple {2347#true} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {2347#true} is VALID [2022-02-21 04:15:44,946 INFO L290 TraceCheckUtils]: 7: Hoare triple {2347#true} assume 0 != test_~tmp___2~0#1; {2347#true} is VALID [2022-02-21 04:15:44,946 INFO L290 TraceCheckUtils]: 8: Hoare triple {2347#true} assume { :begin_inline_timeShift } true; {2347#true} is VALID [2022-02-21 04:15:44,947 INFO L290 TraceCheckUtils]: 9: Hoare triple {2347#true} assume !(0 != ~pumpRunning~0); {2349#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:44,947 INFO L290 TraceCheckUtils]: 10: Hoare triple {2349#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; {2349#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:44,948 INFO L290 TraceCheckUtils]: 11: Hoare triple {2349#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#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; {2348#false} is VALID [2022-02-21 04:15:44,948 INFO L290 TraceCheckUtils]: 12: Hoare triple {2348#false} isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; {2348#false} is VALID [2022-02-21 04:15:44,948 INFO L290 TraceCheckUtils]: 13: Hoare triple {2348#false} processEnvironment_#t~ret11#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1; {2348#false} is VALID [2022-02-21 04:15:44,949 INFO L290 TraceCheckUtils]: 14: Hoare triple {2348#false} assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2348#false} is VALID [2022-02-21 04:15:44,949 INFO L290 TraceCheckUtils]: 15: Hoare triple {2348#false} assume { :end_inline_deactivatePump } true; {2348#false} is VALID [2022-02-21 04:15:44,949 INFO L290 TraceCheckUtils]: 16: Hoare triple {2348#false} assume { :end_inline_processEnvironment } true; {2348#false} is VALID [2022-02-21 04:15:44,949 INFO L290 TraceCheckUtils]: 17: Hoare triple {2348#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_#t~ret30#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#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; {2348#false} is VALID [2022-02-21 04:15:44,949 INFO L290 TraceCheckUtils]: 18: Hoare triple {2348#false} __utac_acc__Specification1_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret29#1;havoc __utac_acc__Specification1_spec__1_#t~ret29#1; {2348#false} is VALID [2022-02-21 04:15:44,950 INFO L290 TraceCheckUtils]: 19: Hoare triple {2348#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); {2348#false} is VALID [2022-02-21 04:15:44,950 INFO L290 TraceCheckUtils]: 20: Hoare triple {2348#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {2348#false} is VALID [2022-02-21 04:15:44,950 INFO L290 TraceCheckUtils]: 21: Hoare triple {2348#false} assume { :end_inline_timeShift } true; {2348#false} is VALID [2022-02-21 04:15:44,950 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 04:15:44,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:44,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451106365] [2022-02-21 04:15:44,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451106365] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:44,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:44,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:44,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202250649] [2022-02-21 04:15:44,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:44,952 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:44,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:44,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:44,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:44,954 INFO L87 Difference]: Start difference. First operand 313 states and 421 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 04:15:45,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,258 INFO L93 Difference]: Finished difference Result 318 states and 403 transitions. [2022-02-21 04:15:45,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:45,259 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 04:15:45,276 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:45,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 403 transitions. [2022-02-21 04:15:45,286 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2022-02-21 04:15:45,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 318 states and 403 transitions. [2022-02-21 04:15:45,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2022-02-21 04:15:45,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2022-02-21 04:15:45,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 403 transitions. [2022-02-21 04:15:45,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:45,297 INFO L681 BuchiCegarLoop]: Abstraction has 318 states and 403 transitions. [2022-02-21 04:15:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 403 transitions. [2022-02-21 04:15:45,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2022-02-21 04:15:45,303 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:45,304 INFO L82 GeneralOperation]: Start isEquivalent. First operand 318 states and 403 transitions. Second operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 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 04:15:45,304 INFO L74 IsIncluded]: Start isIncluded. First operand 318 states and 403 transitions. Second operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 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 04:15:45,305 INFO L87 Difference]: Start difference. First operand 318 states and 403 transitions. Second operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 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 04:15:45,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,314 INFO L93 Difference]: Finished difference Result 318 states and 403 transitions. [2022-02-21 04:15:45,314 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 403 transitions. [2022-02-21 04:15:45,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:45,314 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:45,315 INFO L74 IsIncluded]: Start isIncluded. First operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 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 318 states and 403 transitions. [2022-02-21 04:15:45,316 INFO L87 Difference]: Start difference. First operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 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 318 states and 403 transitions. [2022-02-21 04:15:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:45,324 INFO L93 Difference]: Finished difference Result 318 states and 403 transitions. [2022-02-21 04:15:45,324 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 403 transitions. [2022-02-21 04:15:45,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:45,325 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:45,325 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:45,325 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 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 04:15:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 403 transitions. [2022-02-21 04:15:45,334 INFO L704 BuchiCegarLoop]: Abstraction has 318 states and 403 transitions. [2022-02-21 04:15:45,334 INFO L587 BuchiCegarLoop]: Abstraction has 318 states and 403 transitions. [2022-02-21 04:15:45,334 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:45,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 403 transitions. [2022-02-21 04:15:45,336 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2022-02-21 04:15:45,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:45,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:45,345 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:45,345 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, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:45,345 INFO L791 eck$LassoCheckResult]: Stem: 2889#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(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2857#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret28#1, main_~retValue_acc~10#1, main_~tmp~6#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 2858#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2868#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2706#L83 main_#t~ret28#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret28#1;havoc main_#t~ret28#1; 2707#L603 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 2668#L580 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2669#L103-2 [2022-02-21 04:15:45,346 INFO L793 eck$LassoCheckResult]: Loop: 2669#L103-2 assume !false; 2694#L104 assume test_~splverifierCounter~0#1 < 4; 2695#L105 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2845#L113 assume !(0 != test_~tmp~0#1); 2759#L113-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2848#L123 assume !(0 != test_~tmp___0~0#1); 2741#L123-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 2742#L133 assume 0 != test_~tmp___2~0#1; 2717#L139-2 assume { :begin_inline_timeShift } true; 2844#L177 assume !(0 != ~pumpRunning~0); 2864#L177-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 2830#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 2831#L235-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2842#L209-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2736#L492-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2737#L497-3 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 2761#L363-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2762#L363-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2772#L369-3 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 2699#L213-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2701#L201-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2721#L209-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2771#L235-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2722#L261-1 assume { :end_inline_processEnvironment } true; 2809#L184-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_#t~ret30#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#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; 2810#L452-1 __utac_acc__Specification1_spec__1_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret29#1;havoc __utac_acc__Specification1_spec__1_#t~ret29#1; 2812#L625 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 2746#L625-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2881#L194 assume { :end_inline_timeShift } true; 2669#L103-2 [2022-02-21 04:15:45,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:45,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882420167] [2022-02-21 04:15:45,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,368 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,391 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:45,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,394 INFO L85 PathProgramCache]: Analyzing trace with hash -435637515, now seen corresponding path program 1 times [2022-02-21 04:15:45,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982472422] [2022-02-21 04:15:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,406 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,422 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:45,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:45,423 INFO L85 PathProgramCache]: Analyzing trace with hash -561372239, now seen corresponding path program 1 times [2022-02-21 04:15:45,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:45,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961089762] [2022-02-21 04:15:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:45,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,449 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:45,483 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:48,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:48 BoogieIcfgContainer [2022-02-21 04:15:48,556 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:48,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:48,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:48,557 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:48,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:42" (3/4) ... [2022-02-21 04:15:48,562 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:48,625 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:48,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:48,627 INFO L158 Benchmark]: Toolchain (without parser) took 7718.73ms. Allocated memory was 92.3MB in the beginning and 167.8MB in the end (delta: 75.5MB). Free memory was 58.6MB in the beginning and 50.0MB in the end (delta: 8.6MB). Peak memory consumption was 85.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:48,628 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:48,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.23ms. Allocated memory is still 92.3MB. Free memory was 58.5MB in the beginning and 57.2MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:48,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.90ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 51.6MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:48,629 INFO L158 Benchmark]: Boogie Preprocessor took 49.16ms. Allocated memory is still 92.3MB. Free memory was 51.6MB in the beginning and 48.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:48,629 INFO L158 Benchmark]: RCFGBuilder took 897.99ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 47.7MB in the beginning and 65.1MB in the end (delta: -17.3MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2022-02-21 04:15:48,630 INFO L158 Benchmark]: BuchiAutomizer took 6086.06ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 65.1MB in the beginning and 53.2MB in the end (delta: 11.9MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:48,630 INFO L158 Benchmark]: Witness Printer took 69.08ms. Allocated memory is still 167.8MB. Free memory was 53.2MB in the beginning and 50.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:48,631 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 0.20ms. Allocated memory is still 92.3MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 512.23ms. Allocated memory is still 92.3MB. Free memory was 58.5MB in the beginning and 57.2MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.90ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 51.6MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.16ms. Allocated memory is still 92.3MB. Free memory was 51.6MB in the beginning and 48.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 897.99ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 47.7MB in the beginning and 65.1MB in the end (delta: -17.3MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 6086.06ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 65.1MB in the beginning and 53.2MB in the end (delta: 11.9MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. * Witness Printer took 69.08ms. Allocated memory is still 167.8MB. Free memory was 53.2MB in the beginning and 50.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 318 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 256 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 318 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1585 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1585 mSDsluCounter, 2121 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1480 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 641 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 103]: 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@55ce19b=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e8645e9=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fbb40b0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3564f4e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c0b9e87=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19c2d249=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a52c219=0, methaneLevelCritical=0, \result=0, retValue_acc=0, retValue_acc=1, \result=1, \result=1, retValue_acc=1, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41d21325=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a7f9bdc=0, tmp=0, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, retValue_acc=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1780743=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ebfa55a=0, \result=0, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 103]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L169] int pumpRunning = 0; [L170] int systemActive = 1; [L409] int waterLevel = 1; [L410] int methaneLevelCritical = 0; [L521] int cleanupTimeShifts = 4; [L812] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L594] int retValue_acc ; [L595] int tmp ; [L599] FCALL select_helpers() [L600] FCALL select_features() [L601] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L601] RET, EXPR valid_product() [L601] tmp = valid_product() [L603] COND TRUE \read(tmp) [L605] FCALL setup() [L606] CALL runTest() [L588] CALL test() [L94] int splverifierCounter ; [L95] int tmp ; [L96] int tmp___0 ; [L97] int tmp___1 ; [L98] int tmp___2 ; [L101] splverifierCounter = 0 Loop: [L103] COND TRUE 1 [L105] COND TRUE splverifierCounter < 4 [L111] tmp = __VERIFIER_nondet_int() [L113] COND FALSE !(\read(tmp)) [L121] tmp___0 = __VERIFIER_nondet_int() [L123] COND FALSE !(\read(tmp___0)) [L131] tmp___2 = __VERIFIER_nondet_int() [L133] COND TRUE \read(tmp___2) [L148] CALL timeShift() [L177] COND FALSE !(\read(pumpRunning)) [L184] COND TRUE \read(systemActive) [L186] CALL processEnvironment() [L258] int tmp ; [L261] COND FALSE !(\read(pumpRunning)) [L276] CALL processEnvironment__wrappee__lowWaterSensor() [L232] int tmp ; [L235] COND FALSE !(\read(pumpRunning)) [L250] CALL processEnvironment__wrappee__highWaterSensor() [L206] int tmp ; [L209] COND TRUE ! pumpRunning [L211] CALL, EXPR isHighWaterLevel() [L355] int retValue_acc ; [L356] int tmp ; [L357] int tmp___0 ; [L361] CALL, EXPR isHighWaterSensorDry() [L489] int retValue_acc ; [L492] COND TRUE waterLevel < 2 [L493] retValue_acc = 1 [L494] return (retValue_acc); [L361] RET, EXPR isHighWaterSensorDry() [L361] tmp = isHighWaterSensorDry() [L363] COND TRUE \read(tmp) [L364] tmp___0 = 0 [L368] retValue_acc = tmp___0 [L369] return (retValue_acc); [L211] RET, EXPR isHighWaterLevel() [L211] tmp = isHighWaterLevel() [L213] COND FALSE !(\read(tmp)) [L219] FCALL processEnvironment__wrappee__base() [L250] RET processEnvironment__wrappee__highWaterSensor() [L276] RET processEnvironment__wrappee__lowWaterSensor() [L186] RET processEnvironment() [L192] CALL __utac_acc__Specification1_spec__1() [L618] int tmp ; [L619] int tmp___0 ; [L623] CALL, EXPR isMethaneLevelCritical() [L448] int retValue_acc ; [L451] retValue_acc = methaneLevelCritical [L452] return (retValue_acc); [L623] RET, EXPR isMethaneLevelCritical() [L623] tmp = isMethaneLevelCritical() [L625] COND FALSE !(\read(tmp)) [L192] RET __utac_acc__Specification1_spec__1() [L148] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:48,671 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)