./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_product18.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 19038d4a2c37771efda8321d3e888c138b34ccd1 .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:17:23,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:17:23,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:17:23,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:17:23,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:17:23,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:17:23,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:17:23,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:17:23,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:17:23,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:17:23,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:17:23,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:17:23,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:17:23,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:17:23,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:17:23,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:17:23,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:17:23,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:17:23,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:17:23,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:17:23,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:17:23,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:17:23,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:17:23,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:17:23,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:17:23,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:17:23,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:17:23,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:17:23,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:17:23,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:17:23,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:17:23,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:17:23,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:17:23,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:17:23,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:17:23,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:17:23,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:17:23,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:17:23,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:17:23,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:17:23,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:17:23,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:17:23,701 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:17:23,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:17:23,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:17:23,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:17:23,703 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:17:23,703 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:17:23,703 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:17:23,704 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:17:23,704 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:17:23,704 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:17:23,704 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:17:23,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:17:23,705 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:17:23,705 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:17:23,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:17:23,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:17:23,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:17:23,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:17:23,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:17:23,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:17:23,706 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:17:23,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:17:23,706 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:17:23,706 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:17:23,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:17:23,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:17:23,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:17:23,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:17:23,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:17:23,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:17:23,708 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:17:23,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19038d4a2c37771efda8321d3e888c138b34ccd1 [2021-07-06 20:17:24,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:17:24,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:17:24,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:17:24,093 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:17:24,093 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:17:24,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2021-07-06 20:17:24,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94914b54b/b57f9cf174d140b7867b62b9519e9ceb/FLAG9aae2a9cb [2021-07-06 20:17:24,592 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:17:24,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2021-07-06 20:17:24,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94914b54b/b57f9cf174d140b7867b62b9519e9ceb/FLAG9aae2a9cb [2021-07-06 20:17:24,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94914b54b/b57f9cf174d140b7867b62b9519e9ceb [2021-07-06 20:17:24,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:17:24,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:17:24,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:17:24,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:17:24,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:17:24,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:24,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4163c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24, skipping insertion in model container [2021-07-06 20:17:24,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:24,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:17:24,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:17:24,909 WARN L224 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_product18.cil.c[17728,17741] [2021-07-06 20:17:24,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:17:24,916 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:17:24,955 WARN L224 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_product18.cil.c[17728,17741] [2021-07-06 20:17:24,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:17:24,983 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:17:24,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24 WrapperNode [2021-07-06 20:17:24,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:17:24,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:17:24,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:17:24,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:17:24,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:24,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:25,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:17:25,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:17:25,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:17:25,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:17:25,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:25,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:25,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:25,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:25,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:25,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:25,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:25,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:17:25,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:17:25,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:17:25,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:17:25,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (1/1) ... [2021-07-06 20:17:25,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:17:25,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:17:25,099 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) [2021-07-06 20:17:25,109 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 [2021-07-06 20:17:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:17:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:17:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:17:25,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:17:25,753 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:17:25,754 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-07-06 20:17:25,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:17:25 BoogieIcfgContainer [2021-07-06 20:17:25,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:17:25,756 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:17:25,756 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:17:25,757 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:17:25,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:17:25,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:17:24" (1/3) ... [2021-07-06 20:17:25,759 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47b96481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:17:25, skipping insertion in model container [2021-07-06 20:17:25,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:17:25,759 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:24" (2/3) ... [2021-07-06 20:17:25,759 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47b96481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:17:25, skipping insertion in model container [2021-07-06 20:17:25,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:17:25,759 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:17:25" (3/3) ... [2021-07-06 20:17:25,760 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product18.cil.c [2021-07-06 20:17:25,796 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:17:25,796 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:17:25,796 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:17:25,796 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:17:25,796 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:17:25,796 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:17:25,796 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:17:25,796 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:17:25,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 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) [2021-07-06 20:17:25,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-07-06 20:17:25,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:17:25,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:17:25,832 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:25,832 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:25,833 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:17:25,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 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) [2021-07-06 20:17:25,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-07-06 20:17:25,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:17:25,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:17:25,837 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:25,837 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:25,840 INFO L791 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 11#L-1true havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 21#L406true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 25#L414true main_#t~ret30 := valid_product_#res;main_~tmp~3 := main_#t~ret30;havoc main_#t~ret30; 31#L370true assume 0 != main_~tmp~3; 70#L342true ~methAndRunningLastTime~0 := 0; 32#L882true havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 33#L893-1true [2021-07-06 20:17:25,841 INFO L793 eck$LassoCheckResult]: Loop: 33#L893-1true assume !false; 37#L227true assume test_~splverifierCounter~0 < 4; 59#L228true test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 76#L236true assume !(0 != test_~tmp~2); 75#L236-1true test_~tmp___0~1 := test_#t~nondet27;havoc test_#t~nondet27; 53#L246true assume !(0 != test_~tmp___0~1); 50#L246-1true test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 27#L256true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 18#L264-2true assume !(0 != ~pumpRunning~0); 42#L60true assume !(0 != ~systemActive~0); 57#L67true havoc __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 78#L463true __utac_acc__Specification2_spec__2_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret77;havoc __utac_acc__Specification2_spec__2_#t~ret77; 29#L893true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 33#L893-1true [2021-07-06 20:17:25,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:25,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-07-06 20:17:25,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:25,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140900478] [2021-07-06 20:17:25,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:25,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:25,968 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:26,017 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:26,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:26,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:26,039 INFO L82 PathProgramCache]: Analyzing trace with hash 3553547, now seen corresponding path program 1 times [2021-07-06 20:17:26,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:26,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516183460] [2021-07-06 20:17:26,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:26,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:17:26,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:26,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:17:26,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:26,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:17:26,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:26,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:17:26,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:17:26,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:17:26,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516183460] [2021-07-06 20:17:26,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516183460] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:17:26,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:17:26,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:17:26,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017451560] [2021-07-06 20:17:26,077 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:17:26,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:17:26,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:17:26,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:17:26,087 INFO L87 Difference]: Start difference. First operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-07-06 20:17:26,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:17:26,108 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2021-07-06 20:17:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:17:26,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2021-07-06 20:17:26,111 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:17:26,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 69 states and 97 transitions. [2021-07-06 20:17:26,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2021-07-06 20:17:26,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2021-07-06 20:17:26,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 97 transitions. [2021-07-06 20:17:26,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:17:26,115 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-07-06 20:17:26,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 97 transitions. [2021-07-06 20:17:26,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-07-06 20:17:26,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 68 states have internal predecessors, (97), 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) [2021-07-06 20:17:26,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2021-07-06 20:17:26,133 INFO L704 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-07-06 20:17:26,133 INFO L587 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-07-06 20:17:26,133 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:17:26,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 97 transitions. [2021-07-06 20:17:26,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:17:26,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:17:26,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:17:26,135 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:26,135 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:26,135 INFO L791 eck$LassoCheckResult]: Stem: 198#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 175#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 176#L406 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 192#L414 main_#t~ret30 := valid_product_#res;main_~tmp~3 := main_#t~ret30;havoc main_#t~ret30; 195#L370 assume 0 != main_~tmp~3; 205#L342 ~methAndRunningLastTime~0 := 0; 206#L882 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 202#L893-1 [2021-07-06 20:17:26,136 INFO L793 eck$LassoCheckResult]: Loop: 202#L893-1 assume !false; 207#L227 assume test_~splverifierCounter~0 < 4; 211#L228 test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 227#L236 assume !(0 != test_~tmp~2); 172#L236-1 test_~tmp___0~1 := test_#t~nondet27;havoc test_#t~nondet27; 223#L246 assume !(0 != test_~tmp___0~1); 189#L246-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 199#L256 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 185#L264-2 assume !(0 != ~pumpRunning~0); 186#L60 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 190#L92 assume !(0 != ~pumpRunning~0); 191#L67 havoc __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 226#L463 __utac_acc__Specification2_spec__2_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret77;havoc __utac_acc__Specification2_spec__2_#t~ret77; 200#L893 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 202#L893-1 [2021-07-06 20:17:26,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:26,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-07-06 20:17:26,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:26,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991294939] [2021-07-06 20:17:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:26,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:26,165 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:26,191 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:26,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:26,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:26,202 INFO L82 PathProgramCache]: Analyzing trace with hash 83166849, now seen corresponding path program 1 times [2021-07-06 20:17:26,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:26,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641138157] [2021-07-06 20:17:26,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:26,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:26,206 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:26,209 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:26,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:26,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:26,212 INFO L82 PathProgramCache]: Analyzing trace with hash 145554759, now seen corresponding path program 1 times [2021-07-06 20:17:26,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:26,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069998609] [2021-07-06 20:17:26,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:26,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:26,280 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:26,330 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:26,354 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:26,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:26,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-06 20:18:05,681 WARN L205 SmtUtils]: Spent 39.23 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-07-06 20:18:05,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:05,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2130 [2021-07-06 20:18:25,958 WARN L205 SmtUtils]: Spent 20.20 s on a formula simplification that was a NOOP. DAG size: 435 [2021-07-06 20:18:26,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:18:26 BoogieIcfgContainer [2021-07-06 20:18:26,092 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:18:26,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:18:26,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:18:26,093 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:18:26,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:17:25" (3/4) ... [2021-07-06 20:18:26,095 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:18:26,136 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:18:26,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:18:26,145 INFO L168 Benchmark]: Toolchain (without parser) took 61522.47 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 51.8 MB in the beginning and 28.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 38.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:26,147 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 51.4 MB in the end (delta: 53.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:18:26,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.52 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 51.4 MB in the end (delta: 202.6 kB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:26,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.43 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 48.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:26,148 INFO L168 Benchmark]: Boogie Preprocessor took 47.62 ms. Allocated memory is still 71.3 MB. Free memory was 48.3 MB in the beginning and 46.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:26,149 INFO L168 Benchmark]: RCFGBuilder took 673.39 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 46.2 MB in the beginning and 52.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:26,149 INFO L168 Benchmark]: BuchiAutomizer took 60336.98 ms. Allocated memory is still 86.0 MB. Free memory was 52.9 MB in the beginning and 30.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:26,150 INFO L168 Benchmark]: Witness Printer took 51.02 ms. Allocated memory is still 86.0 MB. Free memory was 30.5 MB in the beginning and 28.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:26,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 51.4 MB in the end (delta: 53.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 359.52 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 51.4 MB in the end (delta: 202.6 kB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.43 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 48.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.62 ms. Allocated memory is still 71.3 MB. Free memory was 48.3 MB in the beginning and 46.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 673.39 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 46.2 MB in the beginning and 52.9 MB in the end (delta: -6.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 60336.98 ms. Allocated memory is still 86.0 MB. Free memory was 52.9 MB in the beginning and 30.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. * Witness Printer took 51.02 ms. Allocated memory is still 86.0 MB. Free memory was 30.5 MB in the beginning and 28.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 69 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 60.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 60.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 9.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 102 SDtfs, 102 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 226]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=27849} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=54870, NULL=0, NULL=27849, retValue_acc=0, NULL=54877, NULL=0, NULL=0, NULL=0, NULL=54874, NULL=54866, NULL=54881, methaneLevelCritical=0, NULL=27853, tmp=0, NULL=0, NULL=0, NULL=54869, NULL=54871, tmp___1=0, NULL=0, NULL=0, NULL=54868, NULL=54875, cleanupTimeShifts=4, NULL=27856, NULL=0, systemActive=1, waterLevel=1, NULL=54865, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3613471d=0, NULL=54862, NULL=0, NULL=54872, NULL=27854, \result=1, NULL=27857, head=0, pumpRunning=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c84b600=0, tmp=1, NULL=54878, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40d939dc=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@596d8a99=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@384bf556=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@360f035e=0, NULL=0, NULL=27851, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58bed0ce=0, NULL=54873, NULL=54863, NULL=0, NULL=0, NULL=0, NULL=0, NULL=27855, tmp___2=71, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@366d20be=0, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=54880, NULL=27852, NULL=54867, tmp=0, head=0, NULL=27850, NULL=0, NULL=0, NULL=0, NULL=0, NULL=54876, NULL=0, NULL=54879, NULL=54864, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L52] int pumpRunning = 0; [L53] int systemActive = 1; [L283] int cleanupTimeShifts = 4; [L420] int waterLevel = 1; [L421] int methaneLevelCritical = 0; [L678] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L876] int methAndRunningLastTime ; [L361] int retValue_acc ; [L362] int tmp ; [L410] int retValue_acc ; [L413] retValue_acc = 1 [L414] return (retValue_acc); [L368] tmp = valid_product() [L370] COND TRUE \read(tmp) [L881] methAndRunningLastTime = 0 [L217] int splverifierCounter ; [L218] int tmp ; [L219] int tmp___0 ; [L220] int tmp___1 ; [L221] int tmp___2 ; [L224] splverifierCounter = 0 Loop: [L226] COND TRUE 1 [L228] COND TRUE splverifierCounter < 4 [L234] tmp = __VERIFIER_nondet_int() [L236] COND FALSE !(\read(tmp)) [L244] tmp___0 = __VERIFIER_nondet_int() [L246] COND FALSE !(\read(tmp___0)) [L254] tmp___2 = __VERIFIER_nondet_int() [L256] COND TRUE \read(tmp___2) [L208] systemActive = 1 [L60] COND FALSE !(\read(pumpRunning)) [L67] COND TRUE \read(systemActive) [L89] int tmp ; [L92] COND FALSE !(\read(pumpRunning)) [L886] int tmp ; [L887] int tmp___0 ; [L459] int retValue_acc ; [L462] retValue_acc = methaneLevelCritical [L463] return (retValue_acc); [L891] tmp = isMethaneLevelCritical() [L893] COND FALSE !(\read(tmp)) [L909] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:18:26,194 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...