./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product38.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_spec2_product38.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 ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:13,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:13,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:13,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:13,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:13,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:13,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:13,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:13,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:13,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:13,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:13,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:13,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:13,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:13,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:13,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:13,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:13,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:13,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:13,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:13,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:13,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:13,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:13,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:13,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:13,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:13,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:13,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:13,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:13,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:13,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:13,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:13,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:13,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:13,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:13,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:13,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:13,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:13,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:13,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:13,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:13,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:13,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:13,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:13,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:13,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:13,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:13,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:13,769 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:13,769 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:13,769 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:13,769 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:13,770 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:13,770 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:13,770 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:13,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:13,771 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:13,771 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:13,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:13,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:13,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:13,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:13,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:13,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:13,772 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:13,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:13,772 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:13,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:13,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:13,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:13,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:13,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:13,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:13,774 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:13,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 [2022-02-21 04:16:13,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:13,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:13,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:13,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:13,989 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:13,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2022-02-21 04:16:14,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c642876d/46e33595aaa04cc59394809692dd2e89/FLAG9e449a397 [2022-02-21 04:16:14,493 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:14,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2022-02-21 04:16:14,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c642876d/46e33595aaa04cc59394809692dd2e89/FLAG9e449a397 [2022-02-21 04:16:15,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c642876d/46e33595aaa04cc59394809692dd2e89 [2022-02-21 04:16:15,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:15,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:15,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:15,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:15,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:15,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6965f982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15, skipping insertion in model container [2022-02-21 04:16:15,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:15,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:15,213 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_spec2_product38.cil.c[1605,1618] [2022-02-21 04:16:15,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:15,379 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:15,398 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_spec2_product38.cil.c[1605,1618] [2022-02-21 04:16:15,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:15,491 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:15,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15 WrapperNode [2022-02-21 04:16:15,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:15,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:15,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:15,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:15,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,569 INFO L137 Inliner]: procedures = 55, calls = 155, calls flagged for inlining = 52, calls inlined = 79, statements flattened = 600 [2022-02-21 04:16:15,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:15,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:15,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:15,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:15,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:15,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:15,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:15,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:15,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (1/1) ... [2022-02-21 04:16:15,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:15,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:15,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:15,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:15,787 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:15,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:16,209 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:16,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:16,218 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:16,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:16 BoogieIcfgContainer [2022-02-21 04:16:16,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:16,221 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:16,221 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:16,224 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:16,225 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:16,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:15" (1/3) ... [2022-02-21 04:16:16,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d95c9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:16, skipping insertion in model container [2022-02-21 04:16:16,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:16,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:15" (2/3) ... [2022-02-21 04:16:16,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d95c9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:16, skipping insertion in model container [2022-02-21 04:16:16,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:16,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:16" (3/3) ... [2022-02-21 04:16:16,228 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2022-02-21 04:16:16,279 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:16,280 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:16,280 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:16,280 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:16,280 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:16,280 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:16,280 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:16,281 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:16,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.38125) internal successors, (221), 160 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:16,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2022-02-21 04:16:16,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:16,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:16,362 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:16,362 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:16,362 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:16,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.38125) internal successors, (221), 160 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:16,382 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2022-02-21 04:16:16,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:16,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:16,384 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:16,384 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:16,388 INFO L791 eck$LassoCheckResult]: Stem: 144#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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 93#L125true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 103#L118true 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; 129#L133true main_#t~ret23#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 108#L485true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 5#L461true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 143#L67true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 134#L345-2true [2022-02-21 04:16:16,389 INFO L793 eck$LassoCheckResult]: Loop: 134#L345-2true assume !false; 58#L346true assume test_~splverifierCounter~0#1 < 4; 135#L347true test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 43#L355true assume !(0 != test_~tmp~4#1); 91#L355-2true test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 72#L365true assume !(0 != test_~tmp___0~2#1); 154#L365-2true test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 18#L375true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 70#L383true assume 0 != test_~tmp___1~0#1; 29#L383-2true assume { :begin_inline_timeShift } true; 13#L153true assume !(0 != ~pumpRunning~0); 147#L153-2true assume !(0 != ~systemActive~0); 41#L160-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 105#L543-1true __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 28#L78true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 101#L78-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 80#L170true assume { :end_inline_timeShift } true; 134#L345-2true [2022-02-21 04:16:16,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:16,394 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:16,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:16,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554145157] [2022-02-21 04:16:16,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:16,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:16,530 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:16,600 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:16,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:16,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1497679990, now seen corresponding path program 1 times [2022-02-21 04:16:16,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:16,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816777844] [2022-02-21 04:16:16,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:16,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:16,629 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:16,642 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:16,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:16,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2061345729, now seen corresponding path program 1 times [2022-02-21 04:16:16,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:16,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852884011] [2022-02-21 04:16:16,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:16,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:16,867 INFO L290 TraceCheckUtils]: 0: Hoare triple {169#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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {171#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:16,869 INFO L290 TraceCheckUtils]: 1: Hoare triple {171#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {171#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:16,869 INFO L290 TraceCheckUtils]: 2: Hoare triple {171#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {171#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:16,870 INFO L290 TraceCheckUtils]: 3: Hoare triple {171#(= 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; {172#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:16,870 INFO L290 TraceCheckUtils]: 4: Hoare triple {172#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret23#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; {173#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} is VALID [2022-02-21 04:16:16,871 INFO L290 TraceCheckUtils]: 5: Hoare triple {173#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,872 INFO L290 TraceCheckUtils]: 6: Hoare triple {174#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,872 INFO L290 TraceCheckUtils]: 7: Hoare triple {174#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,873 INFO L290 TraceCheckUtils]: 8: Hoare triple {174#(not (= 0 ~systemActive~0))} assume !false; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,874 INFO L290 TraceCheckUtils]: 9: Hoare triple {174#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,874 INFO L290 TraceCheckUtils]: 10: Hoare triple {174#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,875 INFO L290 TraceCheckUtils]: 11: Hoare triple {174#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,876 INFO L290 TraceCheckUtils]: 12: Hoare triple {174#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,876 INFO L290 TraceCheckUtils]: 13: Hoare triple {174#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,877 INFO L290 TraceCheckUtils]: 14: Hoare triple {174#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,877 INFO L290 TraceCheckUtils]: 15: Hoare triple {174#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,878 INFO L290 TraceCheckUtils]: 16: Hoare triple {174#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,878 INFO L290 TraceCheckUtils]: 17: Hoare triple {174#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,879 INFO L290 TraceCheckUtils]: 18: Hoare triple {174#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {174#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:16,879 INFO L290 TraceCheckUtils]: 19: Hoare triple {174#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {170#false} is VALID [2022-02-21 04:16:16,880 INFO L290 TraceCheckUtils]: 20: Hoare triple {170#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; {170#false} is VALID [2022-02-21 04:16:16,881 INFO L290 TraceCheckUtils]: 21: Hoare triple {170#false} __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; {170#false} is VALID [2022-02-21 04:16:16,881 INFO L290 TraceCheckUtils]: 22: Hoare triple {170#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; {170#false} is VALID [2022-02-21 04:16:16,882 INFO L290 TraceCheckUtils]: 23: Hoare triple {170#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {170#false} is VALID [2022-02-21 04:16:16,882 INFO L290 TraceCheckUtils]: 24: Hoare triple {170#false} assume { :end_inline_timeShift } true; {170#false} is VALID [2022-02-21 04:16:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:16,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:16,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852884011] [2022-02-21 04:16:16,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852884011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:16,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:16,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:16,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470001713] [2022-02-21 04:16:16,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:17,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:17,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:17,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:17,080 INFO L87 Difference]: Start difference. First operand has 161 states, 160 states have (on average 1.38125) internal successors, (221), 160 states have internal predecessors, (221), 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 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:17,447 INFO L93 Difference]: Finished difference Result 158 states and 207 transitions. [2022-02-21 04:16:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:17,448 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,470 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:17,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 207 transitions. [2022-02-21 04:16:17,493 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2022-02-21 04:16:17,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 148 states and 197 transitions. [2022-02-21 04:16:17,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2022-02-21 04:16:17,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2022-02-21 04:16:17,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 197 transitions. [2022-02-21 04:16:17,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:17,505 INFO L681 BuchiCegarLoop]: Abstraction has 148 states and 197 transitions. [2022-02-21 04:16:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 197 transitions. [2022-02-21 04:16:17,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-02-21 04:16:17,532 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:17,533 INFO L82 GeneralOperation]: Start isEquivalent. First operand 148 states and 197 transitions. Second operand has 148 states, 148 states have (on average 1.3310810810810811) internal successors, (197), 147 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,534 INFO L74 IsIncluded]: Start isIncluded. First operand 148 states and 197 transitions. Second operand has 148 states, 148 states have (on average 1.3310810810810811) internal successors, (197), 147 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,536 INFO L87 Difference]: Start difference. First operand 148 states and 197 transitions. Second operand has 148 states, 148 states have (on average 1.3310810810810811) internal successors, (197), 147 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:17,541 INFO L93 Difference]: Finished difference Result 148 states and 197 transitions. [2022-02-21 04:16:17,542 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 197 transitions. [2022-02-21 04:16:17,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:17,544 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:17,544 INFO L74 IsIncluded]: Start isIncluded. First operand has 148 states, 148 states have (on average 1.3310810810810811) internal successors, (197), 147 states have internal predecessors, (197), 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 148 states and 197 transitions. [2022-02-21 04:16:17,545 INFO L87 Difference]: Start difference. First operand has 148 states, 148 states have (on average 1.3310810810810811) internal successors, (197), 147 states have internal predecessors, (197), 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 148 states and 197 transitions. [2022-02-21 04:16:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:17,550 INFO L93 Difference]: Finished difference Result 148 states and 197 transitions. [2022-02-21 04:16:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 197 transitions. [2022-02-21 04:16:17,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:17,551 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:17,551 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:17,551 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:17,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.3310810810810811) internal successors, (197), 147 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 197 transitions. [2022-02-21 04:16:17,558 INFO L704 BuchiCegarLoop]: Abstraction has 148 states and 197 transitions. [2022-02-21 04:16:17,558 INFO L587 BuchiCegarLoop]: Abstraction has 148 states and 197 transitions. [2022-02-21 04:16:17,558 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:17,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 197 transitions. [2022-02-21 04:16:17,559 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2022-02-21 04:16:17,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:17,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:17,560 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:17,560 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 04:16:17,561 INFO L791 eck$LassoCheckResult]: Stem: 482#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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 414#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 415#L125 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 458#L118 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; 466#L133 main_#t~ret23#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 469#L485 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 340#L461 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 341#L67 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 451#L345-2 [2022-02-21 04:16:17,561 INFO L793 eck$LassoCheckResult]: Loop: 451#L345-2 assume !false; 429#L346 assume test_~splverifierCounter~0#1 < 4; 430#L347 test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 405#L355 assume !(0 != test_~tmp~4#1); 406#L355-2 test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 443#L365 assume !(0 != test_~tmp___0~2#1); 344#L365-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 364#L375 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 365#L328 assume { :end_inline_startSystem } true; 386#L383-2 assume { :begin_inline_timeShift } true; 353#L153 assume !(0 != ~pumpRunning~0); 354#L153-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 475#L211 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 433#L185-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 434#L177-3 assume { :end_inline_processEnvironment__wrappee__base } true; 350#L185-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 394#L211-1 assume { :end_inline_processEnvironment } true; 401#L160-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 402#L543-1 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 382#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 384#L78-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 450#L170 assume { :end_inline_timeShift } true; 451#L345-2 [2022-02-21 04:16:17,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:17,562 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:17,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:17,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743711904] [2022-02-21 04:16:17,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:17,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:17,576 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:17,588 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:17,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:17,588 INFO L85 PathProgramCache]: Analyzing trace with hash -590017906, now seen corresponding path program 1 times [2022-02-21 04:16:17,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:17,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109221278] [2022-02-21 04:16:17,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:17,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:17,605 INFO L290 TraceCheckUtils]: 0: Hoare triple {786#true} assume !false; {786#true} is VALID [2022-02-21 04:16:17,605 INFO L290 TraceCheckUtils]: 1: Hoare triple {786#true} assume test_~splverifierCounter~0#1 < 4; {786#true} is VALID [2022-02-21 04:16:17,605 INFO L290 TraceCheckUtils]: 2: Hoare triple {786#true} test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {786#true} is VALID [2022-02-21 04:16:17,605 INFO L290 TraceCheckUtils]: 3: Hoare triple {786#true} assume !(0 != test_~tmp~4#1); {786#true} is VALID [2022-02-21 04:16:17,606 INFO L290 TraceCheckUtils]: 4: Hoare triple {786#true} test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {786#true} is VALID [2022-02-21 04:16:17,606 INFO L290 TraceCheckUtils]: 5: Hoare triple {786#true} assume !(0 != test_~tmp___0~2#1); {786#true} is VALID [2022-02-21 04:16:17,606 INFO L290 TraceCheckUtils]: 6: Hoare triple {786#true} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {786#true} is VALID [2022-02-21 04:16:17,606 INFO L290 TraceCheckUtils]: 7: Hoare triple {786#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {786#true} is VALID [2022-02-21 04:16:17,606 INFO L290 TraceCheckUtils]: 8: Hoare triple {786#true} assume { :end_inline_startSystem } true; {786#true} is VALID [2022-02-21 04:16:17,607 INFO L290 TraceCheckUtils]: 9: Hoare triple {786#true} assume { :begin_inline_timeShift } true; {786#true} is VALID [2022-02-21 04:16:17,607 INFO L290 TraceCheckUtils]: 10: Hoare triple {786#true} assume !(0 != ~pumpRunning~0); {788#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:17,608 INFO L290 TraceCheckUtils]: 11: Hoare triple {788#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {788#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:17,608 INFO L290 TraceCheckUtils]: 12: Hoare triple {788#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {788#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:17,609 INFO L290 TraceCheckUtils]: 13: Hoare triple {788#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {787#false} is VALID [2022-02-21 04:16:17,609 INFO L290 TraceCheckUtils]: 14: Hoare triple {787#false} assume { :end_inline_processEnvironment__wrappee__base } true; {787#false} is VALID [2022-02-21 04:16:17,609 INFO L290 TraceCheckUtils]: 15: Hoare triple {787#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {787#false} is VALID [2022-02-21 04:16:17,609 INFO L290 TraceCheckUtils]: 16: Hoare triple {787#false} assume { :end_inline_processEnvironment } true; {787#false} is VALID [2022-02-21 04:16:17,609 INFO L290 TraceCheckUtils]: 17: Hoare triple {787#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; {787#false} is VALID [2022-02-21 04:16:17,610 INFO L290 TraceCheckUtils]: 18: Hoare triple {787#false} __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; {787#false} is VALID [2022-02-21 04:16:17,610 INFO L290 TraceCheckUtils]: 19: Hoare triple {787#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; {787#false} is VALID [2022-02-21 04:16:17,610 INFO L290 TraceCheckUtils]: 20: Hoare triple {787#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {787#false} is VALID [2022-02-21 04:16:17,610 INFO L290 TraceCheckUtils]: 21: Hoare triple {787#false} assume { :end_inline_timeShift } true; {787#false} is VALID [2022-02-21 04:16:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:17,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:17,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109221278] [2022-02-21 04:16:17,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109221278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:17,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:17,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:17,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062074866] [2022-02-21 04:16:17,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:17,612 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:17,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:17,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:17,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:17,614 INFO L87 Difference]: Start difference. First operand 148 states and 197 transitions. cyclomatic complexity: 51 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 04:16:17,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:17,812 INFO L93 Difference]: Finished difference Result 207 states and 266 transitions. [2022-02-21 04:16:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:17,812 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 04:16:17,826 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 04:16:17,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 266 transitions. [2022-02-21 04:16:17,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2022-02-21 04:16:17,840 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 266 transitions. [2022-02-21 04:16:17,840 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2022-02-21 04:16:17,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2022-02-21 04:16:17,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 266 transitions. [2022-02-21 04:16:17,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:17,844 INFO L681 BuchiCegarLoop]: Abstraction has 207 states and 266 transitions. [2022-02-21 04:16:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 266 transitions. [2022-02-21 04:16:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-02-21 04:16:17,872 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:17,872 INFO L82 GeneralOperation]: Start isEquivalent. First operand 207 states and 266 transitions. Second operand has 207 states, 207 states have (on average 1.285024154589372) internal successors, (266), 206 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,873 INFO L74 IsIncluded]: Start isIncluded. First operand 207 states and 266 transitions. Second operand has 207 states, 207 states have (on average 1.285024154589372) internal successors, (266), 206 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,874 INFO L87 Difference]: Start difference. First operand 207 states and 266 transitions. Second operand has 207 states, 207 states have (on average 1.285024154589372) internal successors, (266), 206 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:17,879 INFO L93 Difference]: Finished difference Result 207 states and 266 transitions. [2022-02-21 04:16:17,879 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 266 transitions. [2022-02-21 04:16:17,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:17,884 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:17,884 INFO L74 IsIncluded]: Start isIncluded. First operand has 207 states, 207 states have (on average 1.285024154589372) internal successors, (266), 206 states have internal predecessors, (266), 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 207 states and 266 transitions. [2022-02-21 04:16:17,885 INFO L87 Difference]: Start difference. First operand has 207 states, 207 states have (on average 1.285024154589372) internal successors, (266), 206 states have internal predecessors, (266), 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 207 states and 266 transitions. [2022-02-21 04:16:17,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:17,894 INFO L93 Difference]: Finished difference Result 207 states and 266 transitions. [2022-02-21 04:16:17,894 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 266 transitions. [2022-02-21 04:16:17,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:17,896 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:17,896 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:17,896 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:17,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 207 states have (on average 1.285024154589372) internal successors, (266), 206 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 266 transitions. [2022-02-21 04:16:17,902 INFO L704 BuchiCegarLoop]: Abstraction has 207 states and 266 transitions. [2022-02-21 04:16:17,902 INFO L587 BuchiCegarLoop]: Abstraction has 207 states and 266 transitions. [2022-02-21 04:16:17,902 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:17,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 266 transitions. [2022-02-21 04:16:17,905 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2022-02-21 04:16:17,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:17,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:17,906 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:17,906 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] [2022-02-21 04:16:17,907 INFO L791 eck$LassoCheckResult]: Stem: 1148#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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1073#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1074#L125 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1120#L118 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; 1126#L133 main_#t~ret23#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 1130#L485 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 999#L461 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1000#L67 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1147#L345-2 [2022-02-21 04:16:17,907 INFO L793 eck$LassoCheckResult]: Loop: 1147#L345-2 assume !false; 1169#L346 assume test_~splverifierCounter~0#1 < 4; 1168#L347 test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1166#L355 assume !(0 != test_~tmp~4#1); 1164#L355-2 test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1162#L365 assume !(0 != test_~tmp___0~2#1); 1160#L365-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1159#L375 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1156#L328 assume { :end_inline_startSystem } true; 1045#L383-2 assume { :begin_inline_timeShift } true; 1012#L153 assume !(0 != ~pumpRunning~0); 1013#L153-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1138#L211 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1093#L185-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#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; 1082#L583-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1083#L588-1 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 1051#L313-3 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1052#L313-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1069#L319-1 processEnvironment__wrappee__highWaterSensor_#t~ret7#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret7#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1; 1139#L189-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1143#L177-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1149#L185-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1054#L211-1 assume { :end_inline_processEnvironment } true; 1178#L160-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 1177#L543-1 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 1175#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 1172#L78-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1171#L170 assume { :end_inline_timeShift } true; 1147#L345-2 [2022-02-21 04:16:17,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:17,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:17,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909615204] [2022-02-21 04:16:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:17,928 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:17,948 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:17,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:17,949 INFO L85 PathProgramCache]: Analyzing trace with hash -751870748, now seen corresponding path program 1 times [2022-02-21 04:16:17,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:17,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21652913] [2022-02-21 04:16:17,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:17,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:17,983 INFO L290 TraceCheckUtils]: 0: Hoare triple {1622#true} assume !false; {1622#true} is VALID [2022-02-21 04:16:17,983 INFO L290 TraceCheckUtils]: 1: Hoare triple {1622#true} assume test_~splverifierCounter~0#1 < 4; {1622#true} is VALID [2022-02-21 04:16:17,986 INFO L290 TraceCheckUtils]: 2: Hoare triple {1622#true} test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {1622#true} is VALID [2022-02-21 04:16:17,986 INFO L290 TraceCheckUtils]: 3: Hoare triple {1622#true} assume !(0 != test_~tmp~4#1); {1622#true} is VALID [2022-02-21 04:16:17,986 INFO L290 TraceCheckUtils]: 4: Hoare triple {1622#true} test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {1622#true} is VALID [2022-02-21 04:16:17,988 INFO L290 TraceCheckUtils]: 5: Hoare triple {1622#true} assume !(0 != test_~tmp___0~2#1); {1622#true} is VALID [2022-02-21 04:16:17,988 INFO L290 TraceCheckUtils]: 6: Hoare triple {1622#true} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {1622#true} is VALID [2022-02-21 04:16:17,988 INFO L290 TraceCheckUtils]: 7: Hoare triple {1622#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1622#true} is VALID [2022-02-21 04:16:17,988 INFO L290 TraceCheckUtils]: 8: Hoare triple {1622#true} assume { :end_inline_startSystem } true; {1622#true} is VALID [2022-02-21 04:16:17,988 INFO L290 TraceCheckUtils]: 9: Hoare triple {1622#true} assume { :begin_inline_timeShift } true; {1622#true} is VALID [2022-02-21 04:16:17,989 INFO L290 TraceCheckUtils]: 10: Hoare triple {1622#true} assume !(0 != ~pumpRunning~0); {1622#true} is VALID [2022-02-21 04:16:17,989 INFO L290 TraceCheckUtils]: 11: Hoare triple {1622#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1622#true} is VALID [2022-02-21 04:16:17,989 INFO L290 TraceCheckUtils]: 12: Hoare triple {1622#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {1622#true} is VALID [2022-02-21 04:16:17,989 INFO L290 TraceCheckUtils]: 13: Hoare triple {1622#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#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; {1622#true} is VALID [2022-02-21 04:16:17,990 INFO L290 TraceCheckUtils]: 14: Hoare triple {1622#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {1624#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} is VALID [2022-02-21 04:16:17,990 INFO L290 TraceCheckUtils]: 15: Hoare triple {1624#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; {1625#(= |ULTIMATE.start_isHighWaterLevel_~tmp~3#1| 1)} is VALID [2022-02-21 04:16:17,990 INFO L290 TraceCheckUtils]: 16: Hoare triple {1625#(= |ULTIMATE.start_isHighWaterLevel_~tmp~3#1| 1)} assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; {1623#false} is VALID [2022-02-21 04:16:17,991 INFO L290 TraceCheckUtils]: 17: Hoare triple {1623#false} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {1623#false} is VALID [2022-02-21 04:16:17,991 INFO L290 TraceCheckUtils]: 18: Hoare triple {1623#false} processEnvironment__wrappee__highWaterSensor_#t~ret7#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret7#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1; {1623#false} is VALID [2022-02-21 04:16:17,991 INFO L290 TraceCheckUtils]: 19: Hoare triple {1623#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1623#false} is VALID [2022-02-21 04:16:17,991 INFO L290 TraceCheckUtils]: 20: Hoare triple {1623#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1623#false} is VALID [2022-02-21 04:16:17,991 INFO L290 TraceCheckUtils]: 21: Hoare triple {1623#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1623#false} is VALID [2022-02-21 04:16:17,991 INFO L290 TraceCheckUtils]: 22: Hoare triple {1623#false} assume { :end_inline_processEnvironment } true; {1623#false} is VALID [2022-02-21 04:16:17,992 INFO L290 TraceCheckUtils]: 23: Hoare triple {1623#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; {1623#false} is VALID [2022-02-21 04:16:17,992 INFO L290 TraceCheckUtils]: 24: Hoare triple {1623#false} __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; {1623#false} is VALID [2022-02-21 04:16:17,992 INFO L290 TraceCheckUtils]: 25: Hoare triple {1623#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; {1623#false} is VALID [2022-02-21 04:16:17,992 INFO L290 TraceCheckUtils]: 26: Hoare triple {1623#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {1623#false} is VALID [2022-02-21 04:16:17,992 INFO L290 TraceCheckUtils]: 27: Hoare triple {1623#false} assume { :end_inline_timeShift } true; {1623#false} is VALID [2022-02-21 04:16:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:17,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:17,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21652913] [2022-02-21 04:16:17,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21652913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:17,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:17,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:17,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372875628] [2022-02-21 04:16:17,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:17,994 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:17,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:17,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:16:17,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:16:17,995 INFO L87 Difference]: Start difference. First operand 207 states and 266 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:18,323 INFO L93 Difference]: Finished difference Result 400 states and 506 transitions. [2022-02-21 04:16:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-21 04:16:18,323 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,339 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:18,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 400 states and 506 transitions. [2022-02-21 04:16:18,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 284 [2022-02-21 04:16:18,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 400 states to 400 states and 506 transitions. [2022-02-21 04:16:18,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 400 [2022-02-21 04:16:18,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 400 [2022-02-21 04:16:18,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 400 states and 506 transitions. [2022-02-21 04:16:18,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:18,372 INFO L681 BuchiCegarLoop]: Abstraction has 400 states and 506 transitions. [2022-02-21 04:16:18,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states and 506 transitions. [2022-02-21 04:16:18,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 219. [2022-02-21 04:16:18,381 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:18,382 INFO L82 GeneralOperation]: Start isEquivalent. First operand 400 states and 506 transitions. Second operand has 219 states, 219 states have (on average 1.269406392694064) internal successors, (278), 218 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,383 INFO L74 IsIncluded]: Start isIncluded. First operand 400 states and 506 transitions. Second operand has 219 states, 219 states have (on average 1.269406392694064) internal successors, (278), 218 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,383 INFO L87 Difference]: Start difference. First operand 400 states and 506 transitions. Second operand has 219 states, 219 states have (on average 1.269406392694064) internal successors, (278), 218 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:18,395 INFO L93 Difference]: Finished difference Result 400 states and 506 transitions. [2022-02-21 04:16:18,396 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 506 transitions. [2022-02-21 04:16:18,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:18,396 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:18,397 INFO L74 IsIncluded]: Start isIncluded. First operand has 219 states, 219 states have (on average 1.269406392694064) internal successors, (278), 218 states have internal predecessors, (278), 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 400 states and 506 transitions. [2022-02-21 04:16:18,398 INFO L87 Difference]: Start difference. First operand has 219 states, 219 states have (on average 1.269406392694064) internal successors, (278), 218 states have internal predecessors, (278), 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 400 states and 506 transitions. [2022-02-21 04:16:18,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:18,410 INFO L93 Difference]: Finished difference Result 400 states and 506 transitions. [2022-02-21 04:16:18,410 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 506 transitions. [2022-02-21 04:16:18,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:18,411 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:18,411 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:18,411 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:18,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 219 states have (on average 1.269406392694064) internal successors, (278), 218 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:18,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 278 transitions. [2022-02-21 04:16:18,417 INFO L704 BuchiCegarLoop]: Abstraction has 219 states and 278 transitions. [2022-02-21 04:16:18,418 INFO L587 BuchiCegarLoop]: Abstraction has 219 states and 278 transitions. [2022-02-21 04:16:18,418 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:16:18,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 278 transitions. [2022-02-21 04:16:18,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2022-02-21 04:16:18,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:18,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:18,420 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:18,420 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] [2022-02-21 04:16:18,420 INFO L791 eck$LassoCheckResult]: Stem: 2189#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);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2108#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2109#L125 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2157#L118 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; 2164#L133 main_#t~ret23#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1; 2168#L485 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2032#L461 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2033#L67 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2188#L345-2 [2022-02-21 04:16:18,421 INFO L793 eck$LassoCheckResult]: Loop: 2188#L345-2 assume !false; 2124#L346 assume test_~splverifierCounter~0#1 < 4; 2125#L347 test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2099#L355 assume !(0 != test_~tmp~4#1); 2100#L355-2 test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2141#L365 assume !(0 != test_~tmp___0~2#1); 2036#L365-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2053#L375 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2054#L328 assume { :end_inline_startSystem } true; 2079#L383-2 assume { :begin_inline_timeShift } true; 2045#L153 assume !(0 != ~pumpRunning~0); 2046#L153-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2177#L211 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2129#L185-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#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; 2117#L583-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2118#L588-1 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 2085#L313-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2086#L313-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2104#L319-1 processEnvironment__wrappee__highWaterSensor_#t~ret7#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret7#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1; 2178#L189-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2184#L177-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2190#L185-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2088#L211-1 assume { :end_inline_processEnvironment } true; 2216#L160-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret4#1, __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#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; 2215#L543-1 __utac_acc__Specification2_spec__2_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret4#1;havoc __utac_acc__Specification2_spec__2_#t~ret4#1; 2213#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 2203#L78-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2202#L170 assume { :end_inline_timeShift } true; 2188#L345-2 [2022-02-21 04:16:18,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:18,421 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:16:18,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:18,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821348460] [2022-02-21 04:16:18,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:18,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,431 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,452 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:18,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:18,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1010036186, now seen corresponding path program 1 times [2022-02-21 04:16:18,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:18,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467334472] [2022-02-21 04:16:18,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:18,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,459 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,463 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:18,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:18,463 INFO L85 PathProgramCache]: Analyzing trace with hash -10965617, now seen corresponding path program 1 times [2022-02-21 04:16:18,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:18,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829205428] [2022-02-21 04:16:18,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:18,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,472 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:18,497 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:21,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:21 BoogieIcfgContainer [2022-02-21 04:16:21,363 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:21,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:21,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:21,364 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:21,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:16" (3/4) ... [2022-02-21 04:16:21,368 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:21,413 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:21,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:21,415 INFO L158 Benchmark]: Toolchain (without parser) took 6388.83ms. Allocated memory was 79.7MB in the beginning and 161.5MB in the end (delta: 81.8MB). Free memory was 38.4MB in the beginning and 110.1MB in the end (delta: -71.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:21,415 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:21,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.82ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 38.2MB in the beginning and 59.6MB in the end (delta: -21.4MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:21,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.13ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 55.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:21,416 INFO L158 Benchmark]: Boogie Preprocessor took 58.44ms. Allocated memory is still 100.7MB. Free memory was 55.6MB in the beginning and 53.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:21,416 INFO L158 Benchmark]: RCFGBuilder took 591.06ms. Allocated memory is still 100.7MB. Free memory was 52.9MB in the beginning and 56.6MB in the end (delta: -3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:21,416 INFO L158 Benchmark]: BuchiAutomizer took 5142.39ms. Allocated memory was 100.7MB in the beginning and 161.5MB in the end (delta: 60.8MB). Free memory was 56.1MB in the beginning and 113.3MB in the end (delta: -57.2MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:21,417 INFO L158 Benchmark]: Witness Printer took 49.94ms. Allocated memory is still 161.5MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:21,418 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 0.17ms. Allocated memory is still 79.7MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.82ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 38.2MB in the beginning and 59.6MB in the end (delta: -21.4MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.13ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 55.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.44ms. Allocated memory is still 100.7MB. Free memory was 55.6MB in the beginning and 53.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.06ms. Allocated memory is still 100.7MB. Free memory was 52.9MB in the beginning and 56.6MB in the end (delta: -3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5142.39ms. Allocated memory was 100.7MB in the beginning and 161.5MB in the end (delta: 60.8MB). Free memory was 56.1MB in the beginning and 113.3MB in the end (delta: -57.2MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * Witness Printer took 49.94ms. Allocated memory is still 161.5MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 219 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 181 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 219 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1058 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1058 mSDsluCounter, 1054 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 431 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 623 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 345]: 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, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53d42683=0, methaneLevelCritical=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cc2ea0c=0, retValue_acc=1, \result=1, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a09cfc7=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a14694d=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43ffb13a=0, tmp___2=29, methAndRunningLastTime=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31b22ba7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18caa84e=0, cleanupTimeShifts=4, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@263831cc=29, \result=0, tmp=0, head=0, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f0c92b6=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30494b65=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 345]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int methAndRunningLastTime ; [L146] int pumpRunning = 0; [L147] int systemActive = 1; [L402] int cleanupTimeShifts = 4; [L500] int waterLevel = 1; [L501] int methaneLevelCritical = 0; [L763] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L476] int retValue_acc ; [L477] int tmp ; [L481] FCALL select_helpers() [L482] FCALL select_features() [L483] CALL, EXPR valid_product() [L129] int retValue_acc ; [L132] retValue_acc = 1 [L133] return (retValue_acc); [L483] RET, EXPR valid_product() [L483] tmp = valid_product() [L485] COND TRUE \read(tmp) [L487] FCALL setup() [L488] CALL runTest() [L469] CALL __utac_acc__Specification2_spec__1() [L66] methAndRunningLastTime = 0 [L469] RET __utac_acc__Specification2_spec__1() [L470] CALL test() [L336] int splverifierCounter ; [L337] int tmp ; [L338] int tmp___0 ; [L339] int tmp___1 ; [L340] int tmp___2 ; [L343] splverifierCounter = 0 Loop: [L345] COND TRUE 1 [L347] COND TRUE splverifierCounter < 4 [L353] tmp = __VERIFIER_nondet_int() [L355] COND FALSE !(\read(tmp)) [L363] tmp___0 = __VERIFIER_nondet_int() [L365] COND FALSE !(\read(tmp___0)) [L373] tmp___2 = __VERIFIER_nondet_int() [L375] COND TRUE \read(tmp___2) [L377] CALL startSystem() [L327] systemActive = 1 [L377] RET startSystem() [L390] CALL timeShift() [L153] COND FALSE !(\read(pumpRunning)) [L160] COND TRUE \read(systemActive) [L162] CALL processEnvironment() [L208] int tmp ; [L211] COND FALSE !(\read(pumpRunning)) [L226] CALL processEnvironment__wrappee__highWaterSensor() [L182] int tmp ; [L185] COND TRUE ! pumpRunning [L187] CALL, EXPR isHighWaterLevel() [L305] int retValue_acc ; [L306] int tmp ; [L307] int tmp___0 ; [L311] CALL, EXPR isHighWaterSensorDry() [L580] int retValue_acc ; [L583] COND TRUE waterLevel < 2 [L584] retValue_acc = 1 [L585] return (retValue_acc); [L311] RET, EXPR isHighWaterSensorDry() [L311] tmp = isHighWaterSensorDry() [L313] COND TRUE \read(tmp) [L314] tmp___0 = 0 [L318] retValue_acc = tmp___0 [L319] return (retValue_acc); [L187] RET, EXPR isHighWaterLevel() [L187] tmp = isHighWaterLevel() [L189] COND FALSE !(\read(tmp)) [L195] FCALL processEnvironment__wrappee__base() [L226] RET processEnvironment__wrappee__highWaterSensor() [L162] RET processEnvironment() [L168] CALL __utac_acc__Specification2_spec__2() [L71] int tmp ; [L72] int tmp___0 ; [L76] CALL, EXPR isMethaneLevelCritical() [L539] int retValue_acc ; [L542] retValue_acc = methaneLevelCritical [L543] return (retValue_acc); [L76] RET, EXPR isMethaneLevelCritical() [L76] tmp = isMethaneLevelCritical() [L78] COND FALSE !(\read(tmp)) [L94] methAndRunningLastTime = 0 [L168] RET __utac_acc__Specification2_spec__2() [L390] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:21,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)