./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product17.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 cbf45a1115fd10e0de4fb28135afee6c1ce9b70ee1cd8750ed2615e2a15c1223 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:46,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:46,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:46,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:46,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:46,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:46,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:46,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:46,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:46,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:46,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:46,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:46,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:46,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:46,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:46,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:46,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:46,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:46,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:46,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:46,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:46,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:46,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:46,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:46,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:46,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:46,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:46,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:46,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:46,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:46,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:46,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:46,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:46,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:46,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:46,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:46,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:46,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:46,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:46,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:46,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:46,748 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:46,773 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:46,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:46,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:46,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:46,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:46,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:46,776 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:46,776 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:46,776 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:46,776 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:46,780 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:46,781 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:46,781 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:46,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:46,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:46,781 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:46,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:46,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:46,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:46,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:46,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:46,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:46,782 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:46,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:46,783 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:46,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:46,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:46,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:46,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:46,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:46,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:46,785 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:46,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbf45a1115fd10e0de4fb28135afee6c1ce9b70ee1cd8750ed2615e2a15c1223 [2022-02-21 04:16:46,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:47,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:47,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:47,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:47,018 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:47,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2022-02-21 04:16:47,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac491af46/9fdf0f052bf34796a02f4395e73aca8e/FLAGed3d82561 [2022-02-21 04:16:47,456 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:47,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2022-02-21 04:16:47,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac491af46/9fdf0f052bf34796a02f4395e73aca8e/FLAGed3d82561 [2022-02-21 04:16:47,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac491af46/9fdf0f052bf34796a02f4395e73aca8e [2022-02-21 04:16:47,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:47,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:47,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:47,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:47,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:47,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5db644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47, skipping insertion in model container [2022-02-21 04:16:47,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:47,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:48,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12671,12684] [2022-02-21 04:16:48,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:48,159 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:48,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12671,12684] [2022-02-21 04:16:48,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:48,226 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:48,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48 WrapperNode [2022-02-21 04:16:48,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:48,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:48,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:48,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:48,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,281 INFO L137 Inliner]: procedures = 52, calls = 150, calls flagged for inlining = 47, calls inlined = 50, statements flattened = 410 [2022-02-21 04:16:48,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:48,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:48,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:48,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:48,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:48,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:48,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:48,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:48,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (1/1) ... [2022-02-21 04:16:48,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:48,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:48,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:48,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:48,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:48,467 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:48,468 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:48,837 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:48,858 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:48,858 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:48,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:48 BoogieIcfgContainer [2022-02-21 04:16:48,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:48,860 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:48,860 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:48,863 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:48,864 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:48,864 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:47" (1/3) ... [2022-02-21 04:16:48,865 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d821e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:48, skipping insertion in model container [2022-02-21 04:16:48,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:48,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:48" (2/3) ... [2022-02-21 04:16:48,866 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d821e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:48, skipping insertion in model container [2022-02-21 04:16:48,866 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:48,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:48" (3/3) ... [2022-02-21 04:16:48,867 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2022-02-21 04:16:48,914 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:48,915 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:48,915 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:48,915 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:48,915 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:48,916 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:48,916 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:48,916 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:48,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,003 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2022-02-21 04:16:49,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:49,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:49,008 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:49,008 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:49,009 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:49,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2022-02-21 04:16:49,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:49,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:49,035 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:49,036 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:49,047 INFO L791 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 31#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 6#L866true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 91#L859true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 58#L874true main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 80#L830true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 5#L804true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 10#L533-2true [2022-02-21 04:16:49,048 INFO L793 eck$LassoCheckResult]: Loop: 10#L533-2true assume !false; 72#L534true assume test_~splverifierCounter~0#1 < 4; 70#L535true test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 40#L543true assume !(0 != test_~tmp~3#1); 100#L543-2true test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 56#L553true assume !(0 != test_~tmp___0~0#1); 55#L553-2true test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 49#L563true assume 0 != test_~tmp___2~0#1; 59#L569-2true assume { :begin_inline_timeShift } true; 81#L600true assume !(0 != ~pumpRunning~0); 85#L600-2true assume !(0 != ~systemActive~0); 39#L607-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 103#L466true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 11#L888true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 46#L894-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 50#L617true assume { :end_inline_timeShift } true; 10#L533-2true [2022-02-21 04:16:49,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:49,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358018392] [2022-02-21 04:16:49,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,253 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,295 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:49,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,297 INFO L85 PathProgramCache]: Analyzing trace with hash -828899402, now seen corresponding path program 1 times [2022-02-21 04:16:49,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440281069] [2022-02-21 04:16:49,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,304 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,310 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:49,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,312 INFO L85 PathProgramCache]: Analyzing trace with hash 526519674, now seen corresponding path program 1 times [2022-02-21 04:16:49,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490750823] [2022-02-21 04:16:49,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:49,477 INFO L290 TraceCheckUtils]: 0: Hoare triple {116#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {118#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:49,478 INFO L290 TraceCheckUtils]: 1: Hoare triple {118#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {118#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:49,479 INFO L290 TraceCheckUtils]: 2: Hoare triple {118#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {118#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:49,479 INFO L290 TraceCheckUtils]: 3: Hoare triple {118#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {119#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:49,480 INFO L290 TraceCheckUtils]: 4: Hoare triple {119#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; {120#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} is VALID [2022-02-21 04:16:49,480 INFO L290 TraceCheckUtils]: 5: Hoare triple {120#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,481 INFO L290 TraceCheckUtils]: 6: Hoare triple {121#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,481 INFO L290 TraceCheckUtils]: 7: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !false; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,482 INFO L290 TraceCheckUtils]: 8: Hoare triple {121#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,483 INFO L290 TraceCheckUtils]: 9: Hoare triple {121#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,484 INFO L290 TraceCheckUtils]: 10: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,484 INFO L290 TraceCheckUtils]: 11: Hoare triple {121#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,484 INFO L290 TraceCheckUtils]: 12: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,485 INFO L290 TraceCheckUtils]: 13: Hoare triple {121#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,485 INFO L290 TraceCheckUtils]: 14: Hoare triple {121#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,486 INFO L290 TraceCheckUtils]: 15: Hoare triple {121#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,486 INFO L290 TraceCheckUtils]: 16: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {121#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:49,487 INFO L290 TraceCheckUtils]: 17: Hoare triple {121#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {117#false} is VALID [2022-02-21 04:16:49,487 INFO L290 TraceCheckUtils]: 18: Hoare triple {117#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {117#false} is VALID [2022-02-21 04:16:49,487 INFO L290 TraceCheckUtils]: 19: Hoare triple {117#false} __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; {117#false} is VALID [2022-02-21 04:16:49,488 INFO L290 TraceCheckUtils]: 20: Hoare triple {117#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {117#false} is VALID [2022-02-21 04:16:49,488 INFO L290 TraceCheckUtils]: 21: Hoare triple {117#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {117#false} is VALID [2022-02-21 04:16:49,488 INFO L290 TraceCheckUtils]: 22: Hoare triple {117#false} assume { :end_inline_timeShift } true; {117#false} is VALID [2022-02-21 04:16:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:49,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:49,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490750823] [2022-02-21 04:16:49,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490750823] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:49,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:49,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:49,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599201678] [2022-02-21 04:16:49,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:49,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:49,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:49,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:49,653 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,918 INFO L93 Difference]: Finished difference Result 105 states and 133 transitions. [2022-02-21 04:16:49,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:49,919 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,971 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:49,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 133 transitions. [2022-02-21 04:16:49,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-02-21 04:16:49,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 95 states and 123 transitions. [2022-02-21 04:16:50,000 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2022-02-21 04:16:50,000 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2022-02-21 04:16:50,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 123 transitions. [2022-02-21 04:16:50,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:50,001 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 123 transitions. [2022-02-21 04:16:50,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 123 transitions. [2022-02-21 04:16:50,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-02-21 04:16:50,044 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:50,048 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states and 123 transitions. Second operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,050 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states and 123 transitions. Second operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,051 INFO L87 Difference]: Start difference. First operand 95 states and 123 transitions. Second operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:50,072 INFO L93 Difference]: Finished difference Result 95 states and 123 transitions. [2022-02-21 04:16:50,073 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 123 transitions. [2022-02-21 04:16:50,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:50,074 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:50,074 INFO L74 IsIncluded]: Start isIncluded. First operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 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 95 states and 123 transitions. [2022-02-21 04:16:50,075 INFO L87 Difference]: Start difference. First operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 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 95 states and 123 transitions. [2022-02-21 04:16:50,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:50,078 INFO L93 Difference]: Finished difference Result 95 states and 123 transitions. [2022-02-21 04:16:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 123 transitions. [2022-02-21 04:16:50,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:50,079 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:50,079 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:50,079 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 94 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 123 transitions. [2022-02-21 04:16:50,103 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 123 transitions. [2022-02-21 04:16:50,104 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 123 transitions. [2022-02-21 04:16:50,104 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:50,104 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 123 transitions. [2022-02-21 04:16:50,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-02-21 04:16:50,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:50,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:50,113 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,114 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,114 INFO L791 eck$LassoCheckResult]: Stem: 319#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 309#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 249#L866 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 250#L859 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 251#L874 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 252#L830 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 240#L804 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 241#L533-2 [2022-02-21 04:16:50,115 INFO L793 eck$LassoCheckResult]: Loop: 241#L533-2 assume !false; 272#L534 assume test_~splverifierCounter~0#1 < 4; 275#L535 test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 276#L543 assume !(0 != test_~tmp~3#1); 289#L543-2 test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 242#L553 assume !(0 != test_~tmp___0~0#1); 236#L553-2 test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 237#L563 assume 0 != test_~tmp___2~0#1; 253#L569-2 assume { :begin_inline_timeShift } true; 254#L600 assume !(0 != ~pumpRunning~0); 302#L600-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 294#L632 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 262#L624-1 assume { :end_inline_processEnvironment__wrappee__base } true; 256#L632-1 assume { :end_inline_processEnvironment } true; 287#L607-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 315#L466 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 279#L888 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 280#L894-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 322#L617 assume { :end_inline_timeShift } true; 241#L533-2 [2022-02-21 04:16:50,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:50,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866669727] [2022-02-21 04:16:50,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,152 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,186 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash -646847051, now seen corresponding path program 1 times [2022-02-21 04:16:50,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936399299] [2022-02-21 04:16:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,207 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,214 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:50,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1655296369, now seen corresponding path program 1 times [2022-02-21 04:16:50,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314184522] [2022-02-21 04:16:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:50,334 INFO L290 TraceCheckUtils]: 0: Hoare triple {523#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,335 INFO L290 TraceCheckUtils]: 1: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,335 INFO L290 TraceCheckUtils]: 2: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,336 INFO L290 TraceCheckUtils]: 3: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,336 INFO L290 TraceCheckUtils]: 4: Hoare triple {525#(= ~methaneLevelCritical~0 0)} main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,337 INFO L290 TraceCheckUtils]: 5: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,338 INFO L290 TraceCheckUtils]: 6: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,339 INFO L290 TraceCheckUtils]: 7: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !false; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,339 INFO L290 TraceCheckUtils]: 8: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,339 INFO L290 TraceCheckUtils]: 9: Hoare triple {525#(= ~methaneLevelCritical~0 0)} test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,340 INFO L290 TraceCheckUtils]: 10: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~3#1); {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,340 INFO L290 TraceCheckUtils]: 11: Hoare triple {525#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,341 INFO L290 TraceCheckUtils]: 12: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,341 INFO L290 TraceCheckUtils]: 13: Hoare triple {525#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,341 INFO L290 TraceCheckUtils]: 14: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,342 INFO L290 TraceCheckUtils]: 15: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,342 INFO L290 TraceCheckUtils]: 16: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,343 INFO L290 TraceCheckUtils]: 17: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,343 INFO L290 TraceCheckUtils]: 18: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,343 INFO L290 TraceCheckUtils]: 19: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,344 INFO L290 TraceCheckUtils]: 20: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {525#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:50,344 INFO L290 TraceCheckUtils]: 21: Hoare triple {525#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {526#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:50,345 INFO L290 TraceCheckUtils]: 22: Hoare triple {526#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; {527#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7#1| 0)} is VALID [2022-02-21 04:16:50,345 INFO L290 TraceCheckUtils]: 23: Hoare triple {527#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {524#false} is VALID [2022-02-21 04:16:50,345 INFO L290 TraceCheckUtils]: 24: Hoare triple {524#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {524#false} is VALID [2022-02-21 04:16:50,345 INFO L290 TraceCheckUtils]: 25: Hoare triple {524#false} assume { :end_inline_timeShift } true; {524#false} is VALID [2022-02-21 04:16:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:50,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:50,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314184522] [2022-02-21 04:16:50,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314184522] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:50,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:50,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:50,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206228855] [2022-02-21 04:16:50,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:50,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:50,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:50,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:50,415 INFO L87 Difference]: Start difference. First operand 95 states and 123 transitions. cyclomatic complexity: 30 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:50,898 INFO L93 Difference]: Finished difference Result 337 states and 441 transitions. [2022-02-21 04:16:50,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:50,899 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,919 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:50,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 337 states and 441 transitions. [2022-02-21 04:16:50,929 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2022-02-21 04:16:50,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 337 states to 337 states and 441 transitions. [2022-02-21 04:16:50,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 337 [2022-02-21 04:16:50,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 337 [2022-02-21 04:16:50,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 337 states and 441 transitions. [2022-02-21 04:16:50,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:50,940 INFO L681 BuchiCegarLoop]: Abstraction has 337 states and 441 transitions. [2022-02-21 04:16:50,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states and 441 transitions. [2022-02-21 04:16:50,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 183. [2022-02-21 04:16:50,947 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:50,947 INFO L82 GeneralOperation]: Start isEquivalent. First operand 337 states and 441 transitions. Second operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,948 INFO L74 IsIncluded]: Start isIncluded. First operand 337 states and 441 transitions. Second operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,948 INFO L87 Difference]: Start difference. First operand 337 states and 441 transitions. Second operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:50,956 INFO L93 Difference]: Finished difference Result 337 states and 441 transitions. [2022-02-21 04:16:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 441 transitions. [2022-02-21 04:16:50,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:50,958 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:50,959 INFO L74 IsIncluded]: Start isIncluded. First operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 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 337 states and 441 transitions. [2022-02-21 04:16:50,959 INFO L87 Difference]: Start difference. First operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 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 337 states and 441 transitions. [2022-02-21 04:16:50,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:50,966 INFO L93 Difference]: Finished difference Result 337 states and 441 transitions. [2022-02-21 04:16:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 441 transitions. [2022-02-21 04:16:50,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:50,967 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:50,967 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:50,967 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:50,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.284153005464481) internal successors, (235), 182 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:50,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 235 transitions. [2022-02-21 04:16:50,972 INFO L704 BuchiCegarLoop]: Abstraction has 183 states and 235 transitions. [2022-02-21 04:16:50,972 INFO L587 BuchiCegarLoop]: Abstraction has 183 states and 235 transitions. [2022-02-21 04:16:50,972 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:50,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 235 transitions. [2022-02-21 04:16:50,974 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2022-02-21 04:16:50,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:50,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:50,975 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,975 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,975 INFO L791 eck$LassoCheckResult]: Stem: 972#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 957#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 886#L866 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 887#L859 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 893#L874 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 894#L830 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 882#L804 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 883#L533-2 [2022-02-21 04:16:50,975 INFO L793 eck$LassoCheckResult]: Loop: 883#L533-2 assume !false; 914#L534 assume test_~splverifierCounter~0#1 < 4; 917#L535 test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 918#L543 assume !(0 != test_~tmp~3#1); 933#L543-2 test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 884#L553 assume !(0 != test_~tmp___0~0#1); 878#L553-2 test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 879#L563 assume 0 != test_~tmp___2~0#1; 895#L569-2 assume { :begin_inline_timeShift } true; 896#L600 assume !(0 != ~pumpRunning~0); 948#L600-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 938#L632 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 904#L624-1 assume { :end_inline_processEnvironment__wrappee__base } true; 898#L632-1 assume { :end_inline_processEnvironment } true; 931#L607-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 967#L466 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 922#L888 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 919#L498 __utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 920#L894 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 975#L894-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 976#L617 assume { :end_inline_timeShift } true; 883#L533-2 [2022-02-21 04:16:50,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:50,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507734739] [2022-02-21 04:16:50,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,996 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,011 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:51,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1151493224, now seen corresponding path program 1 times [2022-02-21 04:16:51,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:51,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461837899] [2022-02-21 04:16:51,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:51,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,021 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,036 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:51,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:51,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1603162404, now seen corresponding path program 1 times [2022-02-21 04:16:51,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:51,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657299649] [2022-02-21 04:16:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:51,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,059 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,071 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:53,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:53 BoogieIcfgContainer [2022-02-21 04:16:53,230 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:53,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:53,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:53,231 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:53,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:48" (3/4) ... [2022-02-21 04:16:53,234 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:53,269 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:53,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:53,271 INFO L158 Benchmark]: Toolchain (without parser) took 5443.26ms. Allocated memory was 75.5MB in the beginning and 165.7MB in the end (delta: 90.2MB). Free memory was 50.2MB in the beginning and 114.8MB in the end (delta: -64.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,271 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:53,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.65ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 50.1MB in the beginning and 57.0MB in the end (delta: -6.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.67ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 53.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,273 INFO L158 Benchmark]: Boogie Preprocessor took 51.41ms. Allocated memory is still 92.3MB. Free memory was 53.6MB in the beginning and 51.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,273 INFO L158 Benchmark]: RCFGBuilder took 525.91ms. Allocated memory is still 92.3MB. Free memory was 51.6MB in the beginning and 58.7MB in the end (delta: -7.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,273 INFO L158 Benchmark]: BuchiAutomizer took 4370.22ms. Allocated memory was 92.3MB in the beginning and 165.7MB in the end (delta: 73.4MB). Free memory was 58.7MB in the beginning and 117.8MB in the end (delta: -59.1MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,274 INFO L158 Benchmark]: Witness Printer took 38.52ms. Allocated memory is still 165.7MB. Free memory was 117.8MB in the beginning and 115.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:53,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.65ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 50.1MB in the beginning and 57.0MB in the end (delta: -6.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.67ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 53.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.41ms. Allocated memory is still 92.3MB. Free memory was 53.6MB in the beginning and 51.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.91ms. Allocated memory is still 92.3MB. Free memory was 51.6MB in the beginning and 58.7MB in the end (delta: -7.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4370.22ms. Allocated memory was 92.3MB in the beginning and 165.7MB in the end (delta: 73.4MB). Free memory was 58.7MB in the beginning and 117.8MB in the end (delta: -59.1MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. * Witness Printer took 38.52ms. Allocated memory is still 165.7MB. Free memory was 117.8MB in the beginning and 115.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 154 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 828 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 828 mSDsluCounter, 858 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 554 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 304 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 533]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c1abd40=29, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55ecf43c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52a2cba7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19f36c5=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41fd4cbe=0, NULL=1, methaneLevelCritical=0, retValue_acc=1, tmp___0=1, \result=0, \result=1, retValue_acc=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b8ae6e4=0, tmp=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25a63363=0, tmp=1, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ca95f3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5371035f=0, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 533]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L592] int pumpRunning = 0; [L593] int systemActive = 1; [L745] int cleanupTimeShifts = 4; [L821] int retValue_acc ; [L822] int tmp ; [L826] FCALL select_helpers() [L827] FCALL select_features() [L828] CALL, EXPR valid_product() [L870] int retValue_acc ; [L873] retValue_acc = 1 [L874] return (retValue_acc); [L828] RET, EXPR valid_product() [L828] tmp = valid_product() [L830] COND TRUE \read(tmp) [L832] FCALL setup() [L833] CALL runTest() [L812] CALL test() [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 Loop: [L533] COND TRUE 1 [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp)) [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L576] CALL timeShift() [L600] COND FALSE !(\read(pumpRunning)) [L607] COND TRUE \read(systemActive) [L609] CALL processEnvironment() [L629] int tmp ; [L632] COND FALSE !(\read(pumpRunning)) [L647] FCALL processEnvironment__wrappee__base() [L609] RET processEnvironment() [L615] CALL __utac_acc__Specification3_spec__1() [L880] int tmp ; [L881] int tmp___0 ; [L882] int tmp___1 ; [L886] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L886] RET, EXPR isMethaneLevelCritical() [L886] tmp = isMethaneLevelCritical() [L888] COND FALSE !(\read(tmp)) [L892] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L892] RET, EXPR getWaterLevel() [L892] tmp___0 = getWaterLevel() [L894] COND FALSE !(tmp___0 == 2) [L615] RET __utac_acc__Specification3_spec__1() [L576] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:53,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)