./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_product29.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 db34ce7f2561b6e02b8ca3433870fb499d17b965 ............................................................................................................................................................................................................................................................................................................................................................................................ 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-dev-20ed64e [2021-08-27 16:02:40,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:02:40,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:02:40,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:02:40,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:02:40,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:02:40,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:02:40,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:02:40,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:02:40,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:02:40,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:02:40,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:02:40,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:02:40,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:02:40,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:02:40,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:02:40,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:02:40,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:02:40,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:02:40,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:02:40,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:02:40,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:02:40,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:02:40,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:02:40,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:02:40,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:02:40,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:02:40,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:02:40,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:02:40,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:02:40,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:02:40,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:02:40,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:02:40,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:02:40,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:02:40,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:02:40,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:02:40,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:02:40,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:02:40,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:02:40,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:02:40,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:02:40,750 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:02:40,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:02:40,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:02:40,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:02:40,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:02:40,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:02:40,754 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:02:40,754 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:02:40,754 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:02:40,754 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:02:40,755 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:02:40,755 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:02:40,755 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:02:40,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:02:40,756 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:02:40,756 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:02:40,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:02:40,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:02:40,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:02:40,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:02:40,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:02:40,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:02:40,766 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:02:40,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:02:40,766 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:02:40,767 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:02:40,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:02:40,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:02:40,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:02:40,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:02:40,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:02:40,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:02:40,769 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:02:40,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db34ce7f2561b6e02b8ca3433870fb499d17b965 [2021-08-27 16:02:41,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:02:41,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:02:41,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:02:41,095 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:02:41,095 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:02:41,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c [2021-08-27 16:02:41,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380aa9772/378fc23dedf342f288d32f8224a7a4cb/FLAG73a7161f8 [2021-08-27 16:02:41,684 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:02:41,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c [2021-08-27 16:02:41,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380aa9772/378fc23dedf342f288d32f8224a7a4cb/FLAG73a7161f8 [2021-08-27 16:02:42,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380aa9772/378fc23dedf342f288d32f8224a7a4cb [2021-08-27 16:02:42,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:02:42,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:02:42,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:02:42,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:02:42,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:02:42,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e817127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42, skipping insertion in model container [2021-08-27 16:02:42,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:02:42,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:02:42,348 WARN L228 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_product29.cil.c[4935,4948] [2021-08-27 16:02:42,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:02:42,455 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:02:42,478 WARN L228 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_product29.cil.c[4935,4948] [2021-08-27 16:02:42,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:02:42,536 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:02:42,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42 WrapperNode [2021-08-27 16:02:42,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:02:42,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:02:42,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:02:42,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:02:42,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:02:42,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:02:42,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:02:42,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:02:42,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:02:42,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:02:42,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:02:42,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:02:42,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (1/1) ... [2021-08-27 16:02:42,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:02:42,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:02:42,656 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) [2021-08-27 16:02:42,693 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 [2021-08-27 16:02:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:02:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:02:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:02:42,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:02:43,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:02:43,561 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-08-27 16:02:43,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:02:43 BoogieIcfgContainer [2021-08-27 16:02:43,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:02:43,565 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:02:43,565 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:02:43,569 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:02:43,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:02:43,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:02:42" (1/3) ... [2021-08-27 16:02:43,571 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@564fbc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:02:43, skipping insertion in model container [2021-08-27 16:02:43,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:02:43,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:42" (2/3) ... [2021-08-27 16:02:43,572 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@564fbc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:02:43, skipping insertion in model container [2021-08-27 16:02:43,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:02:43,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:02:43" (3/3) ... [2021-08-27 16:02:43,573 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product29.cil.c [2021-08-27 16:02:43,620 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:02:43,621 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:02:43,621 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:02:43,621 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:02:43,621 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:02:43,621 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:02:43,621 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:02:43,622 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:02:43,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.5238095238095237) internal successors, (160), 105 states have internal predecessors, (160), 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) [2021-08-27 16:02:43,676 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-08-27 16:02:43,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:02:43,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:02:43,684 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:43,684 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:43,685 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:02:43,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.5238095238095237) internal successors, (160), 105 states have internal predecessors, (160), 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) [2021-08-27 16:02:43,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-08-27 16:02:43,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:02:43,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:02:43,701 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:43,701 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:43,710 INFO L791 eck$LassoCheckResult]: Stem: 94#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 39#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 77#L486true 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; 66#L494true main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 54#L411true assume 0 != main_~tmp~5; 50#L383true ~methAndRunningLastTime~0 := 0; 99#L431true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 38#L442-1true [2021-08-27 16:02:43,711 INFO L793 eck$LassoCheckResult]: Loop: 38#L442-1true assume !false; 107#L261true assume test_~splverifierCounter~0 < 4; 55#L262true test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 11#L270true assume !(0 != test_~tmp~4); 16#L270-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 74#L280true assume !(0 != test_~tmp___0~1); 32#L280-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 103#L290true assume 0 != test_~tmp___2~0; 36#L296-2true assume !(0 != ~pumpRunning~0); 83#L59true assume !(0 != ~systemActive~0); 31#L66true havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;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; 72#L543-1true __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 24#L442true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 38#L442-1true [2021-08-27 16:02:43,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:43,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:02:43,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:43,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53547316] [2021-08-27 16:02:43,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:43,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:43,968 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:44,119 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:44,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:44,130 INFO L82 PathProgramCache]: Analyzing trace with hash 3984522, now seen corresponding path program 1 times [2021-08-27 16:02:44,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:44,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078953148] [2021-08-27 16:02:44,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:44,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:44,139 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:44,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:44,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:44,162 INFO L82 PathProgramCache]: Analyzing trace with hash 837281028, now seen corresponding path program 1 times [2021-08-27 16:02:44,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:44,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107527458] [2021-08-27 16:02:44,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:44,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:02:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:02:44,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:02:44,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107527458] [2021-08-27 16:02:44,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107527458] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:02:44,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:02:44,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 16:02:44,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727622797] [2021-08-27 16:02:44,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:02:44,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 16:02:44,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-27 16:02:44,568 INFO L87 Difference]: Start difference. First operand has 106 states, 105 states have (on average 1.5238095238095237) internal successors, (160), 105 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-08-27 16:02:44,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:02:44,721 INFO L93 Difference]: Finished difference Result 106 states and 149 transitions. [2021-08-27 16:02:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 16:02:44,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 149 transitions. [2021-08-27 16:02:44,725 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 16:02:44,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 99 states and 142 transitions. [2021-08-27 16:02:44,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2021-08-27 16:02:44,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2021-08-27 16:02:44,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 142 transitions. [2021-08-27 16:02:44,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:02:44,732 INFO L681 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2021-08-27 16:02:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 142 transitions. [2021-08-27 16:02:44,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-08-27 16:02:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.4343434343434343) internal successors, (142), 98 states have internal predecessors, (142), 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) [2021-08-27 16:02:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2021-08-27 16:02:44,757 INFO L704 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2021-08-27 16:02:44,757 INFO L587 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2021-08-27 16:02:44,758 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:02:44,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 142 transitions. [2021-08-27 16:02:44,759 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 16:02:44,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:02:44,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:02:44,760 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:44,760 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:44,760 INFO L791 eck$LassoCheckResult]: Stem: 327#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 285#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 286#L486 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; 313#L494 main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 301#L411 assume 0 != main_~tmp~5; 296#L383 ~methAndRunningLastTime~0 := 0; 297#L431 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 269#L442-1 [2021-08-27 16:02:44,760 INFO L793 eck$LassoCheckResult]: Loop: 269#L442-1 assume !false; 284#L261 assume test_~splverifierCounter~0 < 4; 302#L262 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 245#L270 assume !(0 != test_~tmp~4); 242#L270-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 253#L280 assume !(0 != test_~tmp___0~1); 276#L280-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 277#L290 assume 0 != test_~tmp___2~0; 280#L296-2 assume !(0 != ~pumpRunning~0); 281#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 238#L117 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret7, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 239#L91-1 assume !(0 != ~pumpRunning~0); 264#L66 havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;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; 275#L543-1 __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 267#L442 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 269#L442-1 [2021-08-27 16:02:44,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:44,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:02:44,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:44,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947216874] [2021-08-27 16:02:44,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:44,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:44,792 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:44,845 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:44,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:44,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1679746780, now seen corresponding path program 1 times [2021-08-27 16:02:44,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:44,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107694720] [2021-08-27 16:02:44,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:44,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:44,858 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:44,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:44,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:44,870 INFO L82 PathProgramCache]: Analyzing trace with hash -681195306, now seen corresponding path program 1 times [2021-08-27 16:02:44,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:44,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397947220] [2021-08-27 16:02:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:44,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:44,916 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:44,980 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:03:28,552 WARN L207 SmtUtils]: Spent 43.40 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:04:12,826 WARN L207 SmtUtils]: Spent 21.00 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:04:12,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:04:12 BoogieIcfgContainer [2021-08-27 16:04:12,959 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:04:12,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:04:12,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:04:12,960 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:04:12,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:02:43" (3/4) ... [2021-08-27 16:04:12,963 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:04:13,009 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:04:13,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:04:13,010 INFO L168 Benchmark]: Toolchain (without parser) took 90847.97 ms. Allocated memory was 50.3 MB in the beginning and 96.5 MB in the end (delta: 46.1 MB). Free memory was 26.2 MB in the beginning and 52.7 MB in the end (delta: -26.5 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:13,011 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:04:13,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.24 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.1 MB in the beginning and 39.1 MB in the end (delta: -13.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:13,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.19 ms. Allocated memory is still 62.9 MB. Free memory was 39.1 MB in the beginning and 35.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:13,013 INFO L168 Benchmark]: Boogie Preprocessor took 36.37 ms. Allocated memory is still 62.9 MB. Free memory was 35.5 MB in the beginning and 33.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:13,013 INFO L168 Benchmark]: RCFGBuilder took 931.61 ms. Allocated memory is still 62.9 MB. Free memory was 33.0 MB in the beginning and 38.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:13,014 INFO L168 Benchmark]: BuchiAutomizer took 89394.37 ms. Allocated memory was 62.9 MB in the beginning and 96.5 MB in the end (delta: 33.6 MB). Free memory was 38.1 MB in the beginning and 54.8 MB in the end (delta: -16.7 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:13,014 INFO L168 Benchmark]: Witness Printer took 49.55 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 52.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:04:13,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.24 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.1 MB in the beginning and 39.1 MB in the end (delta: -13.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.19 ms. Allocated memory is still 62.9 MB. Free memory was 39.1 MB in the beginning and 35.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.37 ms. Allocated memory is still 62.9 MB. Free memory was 35.5 MB in the beginning and 33.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 931.61 ms. Allocated memory is still 62.9 MB. Free memory was 33.0 MB in the beginning and 38.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 89394.37 ms. Allocated memory was 62.9 MB in the beginning and 96.5 MB in the end (delta: 33.6 MB). Free memory was 38.1 MB in the beginning and 54.8 MB in the end (delta: -16.7 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. * Witness Printer took 49.55 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 52.7 MB in the end (delta: 2.1 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 6 locations. The remainder module has 99 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 89.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 89.0s. 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 14.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 99 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 144 SDtfs, 439 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 260]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=17056} State at position 1 is {NULL=0, NULL=0, NULL=17056, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=17067, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3913dcd4=0, NULL=17063, methaneLevelCritical=0, NULL=17071, NULL=0, tmp=0, NULL=0, NULL=17064, NULL=17075, NULL=0, NULL=0, NULL=17065, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=17060, NULL=17084, cleanupTimeShifts=4, NULL=17068, NULL=17078, NULL=0, systemActive=1, waterLevel=1, NULL=17066, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@739683f5=0, NULL=17082, NULL=17083, \result=1, NULL=17061, head=0, pumpRunning=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a5a7c7b=0, NULL=17069, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@531791a7=0, NULL=17081, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24bfda82=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58ebff60=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53c5f235=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52cc41e=65, NULL=0, NULL=17076, NULL=17057, NULL=0, NULL=17059, NULL=0, NULL=0, NULL=17079, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e5313fd=0, tmp___2=65, NULL=0, tmp___0=0, NULL=17070, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=17062, NULL=17077, NULL=17058, tmp=0, head=0, NULL=0, tmp=0, NULL=17072, NULL=0, NULL=0, NULL=0, NULL=0, NULL=17080, NULL=0, NULL=17074, NULL=17073, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L425] int methAndRunningLastTime ; [L500] int waterLevel = 1; [L501] int methaneLevelCritical = 0; [L758] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L402] int retValue_acc ; [L403] int tmp ; [L490] int retValue_acc ; [L493] retValue_acc = 1 [L494] return (retValue_acc); [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) [L430] methAndRunningLastTime = 0 [L251] int splverifierCounter ; [L252] int tmp ; [L253] int tmp___0 ; [L254] int tmp___1 ; [L255] int tmp___2 ; [L258] splverifierCounter = 0 Loop: [L260] COND TRUE 1 [L262] COND TRUE splverifierCounter < 4 [L268] tmp = __VERIFIER_nondet_int() [L270] COND FALSE !(\read(tmp)) [L278] tmp___0 = __VERIFIER_nondet_int() [L280] COND FALSE !(\read(tmp___0)) [L288] tmp___2 = __VERIFIER_nondet_int() [L290] COND TRUE \read(tmp___2) [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; [L91] COND FALSE !(\read(pumpRunning)) [L435] int tmp ; [L436] int tmp___0 ; [L539] int retValue_acc ; [L542] retValue_acc = methaneLevelCritical [L543] return (retValue_acc); [L440] tmp = isMethaneLevelCritical() [L442] COND FALSE !(\read(tmp)) [L458] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:04:13,069 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...