./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product18.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_product18.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a980eb28c166cc2413133a58258bd0330d7e4ef715989f4b0f1fe0e46631b0a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:47,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:47,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:47,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:47,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:47,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:47,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:47,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:47,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:47,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:47,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:47,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:47,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:47,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:47,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:47,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:47,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:47,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:47,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:47,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:47,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:47,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:47,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:47,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:47,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:47,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:47,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:47,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:47,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:47,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:47,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:47,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:47,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:47,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:47,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:47,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:47,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:47,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:47,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:47,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:47,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:47,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:47,739 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:47,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:47,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:47,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:47,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:47,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:47,745 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:47,745 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:47,745 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:47,745 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:47,746 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:47,746 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:47,746 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:47,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:47,747 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:47,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:47,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:47,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:47,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:47,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:47,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:47,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:47,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:47,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:47,749 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:47,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:47,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:47,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:47,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:47,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:47,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:47,751 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:47,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a980eb28c166cc2413133a58258bd0330d7e4ef715989f4b0f1fe0e46631b0a [2022-02-21 04:16:47,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:48,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:48,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:48,020 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:48,021 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:48,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2022-02-21 04:16:48,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5241ca07b/7b433f91f44c49ccb27561ce8a156299/FLAGa8a8358d2 [2022-02-21 04:16:48,615 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:48,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2022-02-21 04:16:48,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5241ca07b/7b433f91f44c49ccb27561ce8a156299/FLAGa8a8358d2 [2022-02-21 04:16:49,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5241ca07b/7b433f91f44c49ccb27561ce8a156299 [2022-02-21 04:16:49,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:49,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:49,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:49,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:49,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:49,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12285b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49, skipping insertion in model container [2022-02-21 04:16:49,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:49,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:49,475 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_product18.cil.c[17788,17801] [2022-02-21 04:16:49,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:49,501 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:49,588 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_product18.cil.c[17788,17801] [2022-02-21 04:16:49,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:49,614 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:49,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49 WrapperNode [2022-02-21 04:16:49,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:49,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:49,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:49,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:49,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,692 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 48, calls inlined = 51, statements flattened = 413 [2022-02-21 04:16:49,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:49,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:49,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:49,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:49,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:49,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:49,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:49,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:49,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (1/1) ... [2022-02-21 04:16:49,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:49,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:49,780 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 04:16:49,788 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 04:16:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:49,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:49,890 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:49,892 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:50,320 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:50,326 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:50,331 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:50,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:50 BoogieIcfgContainer [2022-02-21 04:16:50,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:50,337 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:50,338 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:50,342 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:50,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:50,343 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:49" (1/3) ... [2022-02-21 04:16:50,344 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55782dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:50, skipping insertion in model container [2022-02-21 04:16:50,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:50,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:49" (2/3) ... [2022-02-21 04:16:50,345 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55782dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:50, skipping insertion in model container [2022-02-21 04:16:50,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:50,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:50" (3/3) ... [2022-02-21 04:16:50,347 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2022-02-21 04:16:50,392 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:50,392 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:50,392 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:50,393 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:50,393 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:50,393 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:50,393 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:50,393 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:50,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 108 states have internal predecessors, (148), 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 04:16:50,475 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:16:50,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:50,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:50,481 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,481 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,481 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:50,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 108 states have internal predecessors, (148), 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 04:16:50,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:16:50,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:50,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:50,503 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,504 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:50,512 INFO L791 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 33#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 21#L868true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 25#L861true 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; 75#L876true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 48#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 94#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 41#L789-2true [2022-02-21 04:16:50,513 INFO L793 eck$LassoCheckResult]: Loop: 41#L789-2true assume !false; 60#L790true assume test_~splverifierCounter~0#1 < 4; 26#L791true test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 104#L799true assume !(0 != test_~tmp~6#1); 28#L799-2true test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 102#L809true assume !(0 != test_~tmp___0~1#1); 76#L809-2true test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 40#L819true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 110#L827true assume 0 != test_~tmp___1~0#1; 88#L827-2true assume { :begin_inline_timeShift } true; 58#L626true assume !(0 != ~pumpRunning~0); 51#L626-2true assume !(0 != ~systemActive~0); 55#L633-1true 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~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 67#L202true __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; 62#L891true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 90#L897-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 29#L643true assume { :end_inline_timeShift } true; 41#L789-2true [2022-02-21 04:16:50,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:50,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297200569] [2022-02-21 04:16:50,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,668 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,731 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:50,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,734 INFO L85 PathProgramCache]: Analyzing trace with hash -86175820, now seen corresponding path program 1 times [2022-02-21 04:16:50,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148139345] [2022-02-21 04:16:50,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,758 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:50,774 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:50,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:50,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1017857424, now seen corresponding path program 1 times [2022-02-21 04:16:50,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:50,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080060321] [2022-02-21 04:16:50,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:50,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:50,971 INFO L290 TraceCheckUtils]: 0: Hoare triple {117#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {119#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:50,972 INFO L290 TraceCheckUtils]: 1: Hoare triple {119#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {119#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:50,972 INFO L290 TraceCheckUtils]: 2: Hoare triple {119#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {119#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:50,973 INFO L290 TraceCheckUtils]: 3: Hoare triple {119#(= 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; {120#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:50,973 INFO L290 TraceCheckUtils]: 4: Hoare triple {120#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {121#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:16:50,974 INFO L290 TraceCheckUtils]: 5: Hoare triple {121#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,975 INFO L290 TraceCheckUtils]: 6: Hoare triple {122#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,975 INFO L290 TraceCheckUtils]: 7: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !false; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,976 INFO L290 TraceCheckUtils]: 8: Hoare triple {122#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,977 INFO L290 TraceCheckUtils]: 9: Hoare triple {122#(not (= 0 ~systemActive~0))} test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,977 INFO L290 TraceCheckUtils]: 10: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~6#1); {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,978 INFO L290 TraceCheckUtils]: 11: Hoare triple {122#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,978 INFO L290 TraceCheckUtils]: 12: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,979 INFO L290 TraceCheckUtils]: 13: Hoare triple {122#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,979 INFO L290 TraceCheckUtils]: 14: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,980 INFO L290 TraceCheckUtils]: 15: Hoare triple {122#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,980 INFO L290 TraceCheckUtils]: 16: Hoare triple {122#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,981 INFO L290 TraceCheckUtils]: 17: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {122#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:50,982 INFO L290 TraceCheckUtils]: 18: Hoare triple {122#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {118#false} is VALID [2022-02-21 04:16:50,982 INFO L290 TraceCheckUtils]: 19: Hoare triple {118#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~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; {118#false} is VALID [2022-02-21 04:16:50,983 INFO L290 TraceCheckUtils]: 20: Hoare triple {118#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; {118#false} is VALID [2022-02-21 04:16:50,983 INFO L290 TraceCheckUtils]: 21: Hoare triple {118#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {118#false} is VALID [2022-02-21 04:16:50,983 INFO L290 TraceCheckUtils]: 22: Hoare triple {118#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {118#false} is VALID [2022-02-21 04:16:50,984 INFO L290 TraceCheckUtils]: 23: Hoare triple {118#false} assume { :end_inline_timeShift } true; {118#false} is VALID [2022-02-21 04:16:50,985 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 04:16:50,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:50,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080060321] [2022-02-21 04:16:50,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080060321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:50,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:50,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:50,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502658801] [2022-02-21 04:16:50,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:51,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:51,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:51,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:51,173 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 108 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 04:16:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:51,496 INFO L93 Difference]: Finished difference Result 106 states and 134 transitions. [2022-02-21 04:16:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:51,497 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 04:16:51,522 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:51,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 134 transitions. [2022-02-21 04:16:51,531 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2022-02-21 04:16:51,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 96 states and 124 transitions. [2022-02-21 04:16:51,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2022-02-21 04:16:51,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-02-21 04:16:51,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 124 transitions. [2022-02-21 04:16:51,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:51,545 INFO L681 BuchiCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-02-21 04:16:51,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 124 transitions. [2022-02-21 04:16:51,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-02-21 04:16:51,570 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:51,571 INFO L82 GeneralOperation]: Start isEquivalent. First operand 96 states and 124 transitions. Second operand has 96 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 95 states have internal predecessors, (124), 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 04:16:51,572 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states and 124 transitions. Second operand has 96 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 95 states have internal predecessors, (124), 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 04:16:51,575 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 96 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 95 states have internal predecessors, (124), 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 04:16:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:51,579 INFO L93 Difference]: Finished difference Result 96 states and 124 transitions. [2022-02-21 04:16:51,580 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2022-02-21 04:16:51,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:51,581 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:51,582 INFO L74 IsIncluded]: Start isIncluded. First operand has 96 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 95 states have internal predecessors, (124), 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 96 states and 124 transitions. [2022-02-21 04:16:51,582 INFO L87 Difference]: Start difference. First operand has 96 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 95 states have internal predecessors, (124), 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 96 states and 124 transitions. [2022-02-21 04:16:51,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:51,586 INFO L93 Difference]: Finished difference Result 96 states and 124 transitions. [2022-02-21 04:16:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2022-02-21 04:16:51,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:51,587 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:51,587 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:51,587 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:51,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 95 states have internal predecessors, (124), 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 04:16:51,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2022-02-21 04:16:51,592 INFO L704 BuchiCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-02-21 04:16:51,592 INFO L587 BuchiCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-02-21 04:16:51,592 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:51,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 124 transitions. [2022-02-21 04:16:51,593 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2022-02-21 04:16:51,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:51,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:51,594 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:51,594 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] [2022-02-21 04:16:51,595 INFO L791 eck$LassoCheckResult]: Stem: 323#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 314#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 292#L868 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 293#L861 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; 286#L876 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 287#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 317#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 304#L789-2 [2022-02-21 04:16:51,595 INFO L793 eck$LassoCheckResult]: Loop: 304#L789-2 assume !false; 240#L790 assume test_~splverifierCounter~0#1 < 4; 241#L791 test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 298#L799 assume !(0 != test_~tmp~6#1); 301#L799-2 test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 302#L809 assume !(0 != test_~tmp___0~1#1); 288#L809-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 289#L819 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 320#L827 assume 0 != test_~tmp___1~0#1; 270#L827-2 assume { :begin_inline_timeShift } true; 233#L626 assume !(0 != ~pumpRunning~0); 234#L626-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 282#L658 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 263#L650-1 assume { :end_inline_processEnvironment__wrappee__base } true; 251#L658-1 assume { :end_inline_processEnvironment } true; 252#L633-1 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~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 268#L202 __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; 247#L891 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 248#L897-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 303#L643 assume { :end_inline_timeShift } true; 304#L789-2 [2022-02-21 04:16:51,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:51,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:51,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:51,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558226019] [2022-02-21 04:16:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:51,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,615 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,628 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:51,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:51,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1840122695, now seen corresponding path program 1 times [2022-02-21 04:16:51,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:51,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023668423] [2022-02-21 04:16:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:51,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,635 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,640 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:51,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:51,641 INFO L85 PathProgramCache]: Analyzing trace with hash 806846589, now seen corresponding path program 1 times [2022-02-21 04:16:51,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:51,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920742175] [2022-02-21 04:16:51,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:51,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:51,695 INFO L290 TraceCheckUtils]: 0: Hoare triple {528#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,695 INFO L290 TraceCheckUtils]: 1: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,696 INFO L290 TraceCheckUtils]: 2: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,696 INFO L290 TraceCheckUtils]: 3: Hoare triple {530#(= ~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; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,697 INFO L290 TraceCheckUtils]: 4: Hoare triple {530#(= ~methaneLevelCritical~0 0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,697 INFO L290 TraceCheckUtils]: 5: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,698 INFO L290 TraceCheckUtils]: 6: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,698 INFO L290 TraceCheckUtils]: 7: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume !false; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,699 INFO L290 TraceCheckUtils]: 8: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,699 INFO L290 TraceCheckUtils]: 9: Hoare triple {530#(= ~methaneLevelCritical~0 0)} test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,700 INFO L290 TraceCheckUtils]: 10: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~6#1); {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,700 INFO L290 TraceCheckUtils]: 11: Hoare triple {530#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,701 INFO L290 TraceCheckUtils]: 12: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,701 INFO L290 TraceCheckUtils]: 13: Hoare triple {530#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,701 INFO L290 TraceCheckUtils]: 14: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,702 INFO L290 TraceCheckUtils]: 15: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___1~0#1; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,702 INFO L290 TraceCheckUtils]: 16: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,703 INFO L290 TraceCheckUtils]: 17: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,703 INFO L290 TraceCheckUtils]: 18: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,704 INFO L290 TraceCheckUtils]: 19: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,704 INFO L290 TraceCheckUtils]: 20: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,705 INFO L290 TraceCheckUtils]: 21: Hoare triple {530#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {530#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:51,705 INFO L290 TraceCheckUtils]: 22: Hoare triple {530#(= ~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~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; {531#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:51,706 INFO L290 TraceCheckUtils]: 23: Hoare triple {531#(= |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; {532#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7#1| 0)} is VALID [2022-02-21 04:16:51,706 INFO L290 TraceCheckUtils]: 24: Hoare triple {532#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {529#false} is VALID [2022-02-21 04:16:51,707 INFO L290 TraceCheckUtils]: 25: Hoare triple {529#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {529#false} is VALID [2022-02-21 04:16:51,707 INFO L290 TraceCheckUtils]: 26: Hoare triple {529#false} assume { :end_inline_timeShift } true; {529#false} is VALID [2022-02-21 04:16:51,707 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 04:16:51,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:51,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920742175] [2022-02-21 04:16:51,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920742175] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:51,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:51,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:51,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534067416] [2022-02-21 04:16:51,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:51,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:51,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:51,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:51,808 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. cyclomatic complexity: 30 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 04:16:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:52,387 INFO L93 Difference]: Finished difference Result 343 states and 447 transitions. [2022-02-21 04:16:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:52,387 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 04:16:52,410 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:52,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 343 states and 447 transitions. [2022-02-21 04:16:52,424 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 245 [2022-02-21 04:16:52,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 343 states to 343 states and 447 transitions. [2022-02-21 04:16:52,437 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 343 [2022-02-21 04:16:52,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 343 [2022-02-21 04:16:52,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 343 states and 447 transitions. [2022-02-21 04:16:52,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:52,439 INFO L681 BuchiCegarLoop]: Abstraction has 343 states and 447 transitions. [2022-02-21 04:16:52,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states and 447 transitions. [2022-02-21 04:16:52,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 185. [2022-02-21 04:16:52,450 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:52,450 INFO L82 GeneralOperation]: Start isEquivalent. First operand 343 states and 447 transitions. Second operand has 185 states, 185 states have (on average 1.281081081081081) internal successors, (237), 184 states have internal predecessors, (237), 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 04:16:52,451 INFO L74 IsIncluded]: Start isIncluded. First operand 343 states and 447 transitions. Second operand has 185 states, 185 states have (on average 1.281081081081081) internal successors, (237), 184 states have internal predecessors, (237), 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 04:16:52,451 INFO L87 Difference]: Start difference. First operand 343 states and 447 transitions. Second operand has 185 states, 185 states have (on average 1.281081081081081) internal successors, (237), 184 states have internal predecessors, (237), 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 04:16:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:52,463 INFO L93 Difference]: Finished difference Result 343 states and 447 transitions. [2022-02-21 04:16:52,463 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 447 transitions. [2022-02-21 04:16:52,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:52,465 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:52,466 INFO L74 IsIncluded]: Start isIncluded. First operand has 185 states, 185 states have (on average 1.281081081081081) internal successors, (237), 184 states have internal predecessors, (237), 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 343 states and 447 transitions. [2022-02-21 04:16:52,466 INFO L87 Difference]: Start difference. First operand has 185 states, 185 states have (on average 1.281081081081081) internal successors, (237), 184 states have internal predecessors, (237), 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 343 states and 447 transitions. [2022-02-21 04:16:52,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:52,476 INFO L93 Difference]: Finished difference Result 343 states and 447 transitions. [2022-02-21 04:16:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 447 transitions. [2022-02-21 04:16:52,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:52,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:52,478 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:52,478 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 185 states have (on average 1.281081081081081) internal successors, (237), 184 states have internal predecessors, (237), 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 04:16:52,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 237 transitions. [2022-02-21 04:16:52,483 INFO L704 BuchiCegarLoop]: Abstraction has 185 states and 237 transitions. [2022-02-21 04:16:52,483 INFO L587 BuchiCegarLoop]: Abstraction has 185 states and 237 transitions. [2022-02-21 04:16:52,483 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:52,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 185 states and 237 transitions. [2022-02-21 04:16:52,485 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2022-02-21 04:16:52,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:52,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:52,485 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:52,485 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:52,486 INFO L791 eck$LassoCheckResult]: Stem: 987#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 970#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 943#L868 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 944#L861 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; 938#L876 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 939#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 978#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 979#L789-2 [2022-02-21 04:16:52,486 INFO L793 eck$LassoCheckResult]: Loop: 979#L789-2 assume !false; 1041#L790 assume test_~splverifierCounter~0#1 < 4; 950#L791 test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 951#L799 assume !(0 != test_~tmp~6#1); 955#L799-2 test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 956#L809 assume !(0 != test_~tmp___0~1#1); 940#L809-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 941#L819 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 983#L827 assume 0 != test_~tmp___1~0#1; 923#L827-2 assume { :begin_inline_timeShift } true; 884#L626 assume !(0 != ~pumpRunning~0); 885#L626-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 935#L658 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 915#L650-1 assume { :end_inline_processEnvironment__wrappee__base } true; 901#L658-1 assume { :end_inline_processEnvironment } true; 902#L633-1 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~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 995#L202 __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; 898#L891 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 899#L234 __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; 900#L897 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1044#L897-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1043#L643 assume { :end_inline_timeShift } true; 979#L789-2 [2022-02-21 04:16:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:52,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:52,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:52,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922517705] [2022-02-21 04:16:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:52,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,497 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,506 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:52,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:52,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1169867436, now seen corresponding path program 1 times [2022-02-21 04:16:52,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:52,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076404912] [2022-02-21 04:16:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:52,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,512 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,516 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:52,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:52,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2008257168, now seen corresponding path program 1 times [2022-02-21 04:16:52,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:52,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175429503] [2022-02-21 04:16:52,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:52,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,529 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,543 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:55,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:55 BoogieIcfgContainer [2022-02-21 04:16:55,542 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:55,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:55,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:55,543 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:55,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:50" (3/4) ... [2022-02-21 04:16:55,545 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:55,607 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:55,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:55,609 INFO L158 Benchmark]: Toolchain (without parser) took 6500.33ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 65.2MB in the beginning and 103.9MB in the end (delta: -38.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,611 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:55,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.26ms. Allocated memory is still 96.5MB. Free memory was 65.0MB in the beginning and 60.7MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.13ms. Allocated memory is still 96.5MB. Free memory was 60.7MB in the beginning and 57.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,628 INFO L158 Benchmark]: Boogie Preprocessor took 46.22ms. Allocated memory is still 96.5MB. Free memory was 57.3MB in the beginning and 55.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,629 INFO L158 Benchmark]: RCFGBuilder took 594.86ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.2MB in the beginning and 83.4MB in the end (delta: -28.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,629 INFO L158 Benchmark]: BuchiAutomizer took 5205.42ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 83.4MB in the beginning and 107.1MB in the end (delta: -23.7MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,630 INFO L158 Benchmark]: Witness Printer took 65.32ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 103.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,633 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 0.78ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.26ms. Allocated memory is still 96.5MB. Free memory was 65.0MB in the beginning and 60.7MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.13ms. Allocated memory is still 96.5MB. Free memory was 60.7MB in the beginning and 57.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.22ms. Allocated memory is still 96.5MB. Free memory was 57.3MB in the beginning and 55.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.86ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 55.2MB in the beginning and 83.4MB in the end (delta: -28.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 5205.42ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 83.4MB in the beginning and 107.1MB in the end (delta: -23.7MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Witness Printer took 65.32ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 103.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 185 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 158 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 185 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 949 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 949 mSDsluCounter, 868 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 561 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 307 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: 789]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fa2db05=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, tmp___0=1, \result=0, retValue_acc=0, \result=1, tmp=0, tmp___2=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ae9ab38=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c739f7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53bd0340=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39bc5a25=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@152ee1b4=0, tmp=1, \result=0, tmp=0, head=0, \result=1, retValue_acc=1, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d1f05d=29, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30a388ba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c91d9d9=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 789]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L159] int waterLevel = 1; [L160] int methaneLevelCritical = 0; [L417] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L618] int pumpRunning = 0; [L619] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L872] int retValue_acc ; [L875] retValue_acc = 1 [L876] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L780] int splverifierCounter ; [L781] int tmp ; [L782] int tmp___0 ; [L783] int tmp___1 ; [L784] int tmp___2 ; [L787] splverifierCounter = 0 Loop: [L789] COND TRUE 1 [L791] COND TRUE splverifierCounter < 4 [L797] tmp = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp)) [L807] tmp___0 = __VERIFIER_nondet_int() [L809] COND FALSE !(\read(tmp___0)) [L817] tmp___2 = __VERIFIER_nondet_int() [L819] COND FALSE !(\read(tmp___2)) [L825] tmp___1 = __VERIFIER_nondet_int() [L827] COND TRUE \read(tmp___1) [L834] CALL timeShift() [L626] COND FALSE !(\read(pumpRunning)) [L633] COND TRUE \read(systemActive) [L635] CALL processEnvironment() [L655] int tmp ; [L658] COND FALSE !(\read(pumpRunning)) [L673] FCALL processEnvironment__wrappee__base() [L635] RET processEnvironment() [L641] CALL __utac_acc__Specification3_spec__1() [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; [L889] CALL, EXPR isMethaneLevelCritical() [L198] int retValue_acc ; [L201] retValue_acc = methaneLevelCritical [L202] return (retValue_acc); [L889] RET, EXPR isMethaneLevelCritical() [L889] tmp = isMethaneLevelCritical() [L891] COND FALSE !(\read(tmp)) [L895] CALL, EXPR getWaterLevel() [L230] int retValue_acc ; [L233] retValue_acc = waterLevel [L234] return (retValue_acc); [L895] RET, EXPR getWaterLevel() [L895] tmp___0 = getWaterLevel() [L897] COND FALSE !(tmp___0 == 2) [L641] RET __utac_acc__Specification3_spec__1() [L834] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:55,718 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)