./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_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-?-791161d [2022-07-23 15:26:20,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:26:20,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:26:20,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:26:20,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:26:20,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:26:20,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:26:20,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:26:20,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:26:20,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:26:20,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:26:20,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:26:20,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:26:20,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:26:20,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:26:20,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:26:20,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:26:20,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:26:20,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:26:20,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:26:20,711 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:26:20,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:26:20,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:26:20,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:26:20,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:26:20,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:26:20,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:26:20,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:26:20,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:26:20,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:26:20,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:26:20,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:26:20,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:26:20,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:26:20,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:26:20,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:26:20,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:26:20,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:26:20,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:26:20,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:26:20,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:26:20,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:26:20,730 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:26:20,753 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:26:20,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:26:20,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:26:20,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:26:20,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:26:20,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:26:20,756 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:26:20,756 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:26:20,756 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:26:20,756 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:26:20,757 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:26:20,757 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:26:20,757 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:26:20,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:26:20,757 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:26:20,757 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:26:20,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:26:20,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:26:20,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:26:20,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:26:20,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:26:20,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:26:20,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:26:20,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:26:20,759 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:26:20,760 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:26:20,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:26:20,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:26:20,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:26:20,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:26:20,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:26:20,761 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:26:20,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a980eb28c166cc2413133a58258bd0330d7e4ef715989f4b0f1fe0e46631b0a [2022-07-23 15:26:21,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:26:21,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:26:21,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:26:21,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:26:21,028 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:26:21,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2022-07-23 15:26:21,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bb4ba1d/c6437ac4402948d59566c7c1a9eff94c/FLAGfc8741e7d [2022-07-23 15:26:21,597 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:26:21,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2022-07-23 15:26:21,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bb4ba1d/c6437ac4402948d59566c7c1a9eff94c/FLAGfc8741e7d [2022-07-23 15:26:22,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bb4ba1d/c6437ac4402948d59566c7c1a9eff94c [2022-07-23 15:26:22,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:26:22,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:26:22,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:22,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:26:22,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:26:22,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15187376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22, skipping insertion in model container [2022-07-23 15:26:22,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:26:22,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:26:22,419 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] [2022-07-23 15:26:22,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:22,432 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:26:22,522 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] [2022-07-23 15:26:22,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:22,548 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:26:22,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22 WrapperNode [2022-07-23 15:26:22,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:22,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:22,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:26:22,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:26:22,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,612 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 48, calls inlined = 51, statements flattened = 413 [2022-07-23 15:26:22,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:22,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:26:22,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:26:22,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:26:22,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:26:22,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:26:22,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:26:22,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:26:22,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (1/1) ... [2022-07-23 15:26:22,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:26:22,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:26:22,694 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) [2022-07-23 15:26:22,706 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 [2022-07-23 15:26:22,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:26:22,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:26:22,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:26:22,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:26:22,801 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:26:22,803 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:26:23,137 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:26:23,142 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:26:23,143 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:26:23,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:23 BoogieIcfgContainer [2022-07-23 15:26:23,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:26:23,145 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:26:23,145 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:26:23,148 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:26:23,149 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:23,149 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:26:22" (1/3) ... [2022-07-23 15:26:23,150 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6959184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:23, skipping insertion in model container [2022-07-23 15:26:23,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:23,150 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:22" (2/3) ... [2022-07-23 15:26:23,150 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6959184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:23, skipping insertion in model container [2022-07-23 15:26:23,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:23,150 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:23" (3/3) ... [2022-07-23 15:26:23,163 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2022-07-23 15:26:23,218 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:26:23,218 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:26:23,219 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:26:23,219 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:26:23,219 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:26:23,219 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:26:23,219 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:26:23,219 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:26:23,223 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) [2022-07-23 15:26:23,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-07-23 15:26:23,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:23,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:23,253 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:23,253 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:23,253 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:26:23,255 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) [2022-07-23 15:26:23,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-07-23 15:26:23,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:23,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:23,263 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:23,263 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:23,267 INFO L752 eck$LassoCheckResult]: Stem: 97#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; 32#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; 20#L868true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 24#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; 74#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; 47#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 93#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; 40#L789-2true [2022-07-23 15:26:23,273 INFO L754 eck$LassoCheckResult]: Loop: 40#L789-2true assume !false; 59#L790true assume test_~splverifierCounter~0#1 < 4; 25#L791true test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 103#L799true assume !(0 != test_~tmp~6#1); 27#L799-2true test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 101#L809true assume !(0 != test_~tmp___0~1#1); 75#L809-2true test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 39#L819true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 13#L775true assume { :end_inline_startSystem } true; 87#L827-2true assume { :begin_inline_timeShift } true; 57#L626true assume !(0 != ~pumpRunning~0); 50#L626-2true assume !(0 != ~systemActive~0); 54#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; 66#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; 61#L891true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 89#L897-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 28#L643true assume { :end_inline_timeShift } true; 40#L789-2true [2022-07-23 15:26:23,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:23,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-23 15:26:23,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:23,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926343597] [2022-07-23 15:26:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:23,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,412 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:23,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1147215923, now seen corresponding path program 1 times [2022-07-23 15:26:23,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:23,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579343868] [2022-07-23 15:26:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:23,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:23,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:23,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:23,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579343868] [2022-07-23 15:26:23,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579343868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:23,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:23,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 15:26:23,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373081232] [2022-07-23 15:26:23,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:23,540 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 15:26:23,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:23,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 15:26:23,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 15:26:23,577 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-07-23 15:26:23,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:23,627 INFO L93 Difference]: Finished difference Result 106 states and 135 transitions. [2022-07-23 15:26:23,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 15:26:23,631 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 135 transitions. [2022-07-23 15:26:23,639 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2022-07-23 15:26:23,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 96 states and 124 transitions. [2022-07-23 15:26:23,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2022-07-23 15:26:23,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-07-23 15:26:23,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 124 transitions. [2022-07-23 15:26:23,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:23,648 INFO L369 hiAutomatonCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-07-23 15:26:23,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 124 transitions. [2022-07-23 15:26:23,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-07-23 15:26:23,671 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) [2022-07-23 15:26:23,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2022-07-23 15:26:23,674 INFO L392 hiAutomatonCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-07-23 15:26:23,674 INFO L374 stractBuchiCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-07-23 15:26:23,674 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:26:23,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 124 transitions. [2022-07-23 15:26:23,676 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2022-07-23 15:26:23,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:23,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:23,677 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:23,677 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:23,677 INFO L752 eck$LassoCheckResult]: Stem: 314#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; 305#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; 283#L868 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 284#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; 279#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; 280#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 310#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; 295#L789-2 [2022-07-23 15:26:23,677 INFO L754 eck$LassoCheckResult]: Loop: 295#L789-2 assume !false; 231#L790 assume test_~splverifierCounter~0#1 < 4; 232#L791 test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 289#L799 assume !(0 != test_~tmp~6#1); 292#L799-2 test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 293#L809 assume !(0 != test_~tmp___0~1#1); 277#L809-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 278#L819 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 260#L775 assume { :end_inline_startSystem } true; 261#L827-2 assume { :begin_inline_timeShift } true; 224#L626 assume !(0 != ~pumpRunning~0); 225#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; 273#L658 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 254#L650-1 assume { :end_inline_processEnvironment__wrappee__base } true; 242#L658-1 assume { :end_inline_processEnvironment } true; 243#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; 259#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; 238#L891 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 239#L897-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 294#L643 assume { :end_inline_timeShift } true; 295#L789-2 [2022-07-23 15:26:23,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:23,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-23 15:26:23,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:23,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681523639] [2022-07-23 15:26:23,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:23,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:23,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:23,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1311924262, now seen corresponding path program 1 times [2022-07-23 15:26:23,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:23,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588342735] [2022-07-23 15:26:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:23,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,769 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:23,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1335045022, now seen corresponding path program 1 times [2022-07-23 15:26:23,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:23,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936145562] [2022-07-23 15:26:23,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:23,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:23,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:23,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:23,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936145562] [2022-07-23 15:26:23,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936145562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:23,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:23,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 15:26:23,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651363312] [2022-07-23 15:26:23,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:24,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:24,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 15:26:24,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 15:26:24,042 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) [2022-07-23 15:26:24,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:24,164 INFO L93 Difference]: Finished difference Result 343 states and 447 transitions. [2022-07-23 15:26:24,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 15:26:24,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 343 states and 447 transitions. [2022-07-23 15:26:24,169 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 245 [2022-07-23 15:26:24,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 343 states to 343 states and 447 transitions. [2022-07-23 15:26:24,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 343 [2022-07-23 15:26:24,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 343 [2022-07-23 15:26:24,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 343 states and 447 transitions. [2022-07-23 15:26:24,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:24,189 INFO L369 hiAutomatonCegarLoop]: Abstraction has 343 states and 447 transitions. [2022-07-23 15:26:24,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states and 447 transitions. [2022-07-23 15:26:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 185. [2022-07-23 15:26:24,206 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) [2022-07-23 15:26:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 237 transitions. [2022-07-23 15:26:24,207 INFO L392 hiAutomatonCegarLoop]: Abstraction has 185 states and 237 transitions. [2022-07-23 15:26:24,207 INFO L374 stractBuchiCegarLoop]: Abstraction has 185 states and 237 transitions. [2022-07-23 15:26:24,207 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:26:24,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 185 states and 237 transitions. [2022-07-23 15:26:24,208 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2022-07-23 15:26:24,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:24,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:24,209 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:24,209 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-23 15:26:24,209 INFO L752 eck$LassoCheckResult]: Stem: 782#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; 769#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; 741#L868 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 742#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; 738#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; 739#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 778#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; 755#L789-2 [2022-07-23 15:26:24,209 INFO L754 eck$LassoCheckResult]: Loop: 755#L789-2 assume !false; 692#L790 assume test_~splverifierCounter~0#1 < 4; 693#L791 test_~tmp~6#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 864#L799 assume !(0 != test_~tmp~6#1); 862#L799-2 test_~tmp___0~1#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 861#L809 assume !(0 != test_~tmp___0~1#1); 859#L809-2 test_~tmp___2~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 858#L819 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 856#L775 assume { :end_inline_startSystem } true; 855#L827-2 assume { :begin_inline_timeShift } true; 852#L626 assume !(0 != ~pumpRunning~0); 849#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; 846#L658 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 843#L650-1 assume { :end_inline_processEnvironment__wrappee__base } true; 841#L658-1 assume { :end_inline_processEnvironment } true; 840#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; 839#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; 695#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; 696#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; 705#L897 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 706#L897-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 754#L643 assume { :end_inline_timeShift } true; 755#L789-2 [2022-07-23 15:26:24,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:24,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-23 15:26:24,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:24,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649665170] [2022-07-23 15:26:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:24,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:24,230 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:24,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:24,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:24,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1962420621, now seen corresponding path program 1 times [2022-07-23 15:26:24,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:24,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240292583] [2022-07-23 15:26:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:24,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:24,272 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:24,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:24,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1215703983, now seen corresponding path program 1 times [2022-07-23 15:26:24,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:24,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344149277] [2022-07-23 15:26:24,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:24,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:24,307 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:24,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:26,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:26:26 BoogieIcfgContainer [2022-07-23 15:26:26,813 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:26:26,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:26:26,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:26:26,814 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:26:26,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:23" (3/4) ... [2022-07-23 15:26:26,816 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:26:26,846 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:26:26,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:26:26,847 INFO L158 Benchmark]: Toolchain (without parser) took 4764.00ms. Allocated memory was 104.9MB in the beginning and 153.1MB in the end (delta: 48.2MB). Free memory was 71.8MB in the beginning and 87.8MB in the end (delta: -15.9MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,847 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:26:26,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.67ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 71.6MB in the beginning and 91.9MB in the end (delta: -20.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.11ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 89.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,849 INFO L158 Benchmark]: Boogie Preprocessor took 45.99ms. Allocated memory is still 125.8MB. Free memory was 89.2MB in the beginning and 87.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,849 INFO L158 Benchmark]: RCFGBuilder took 484.18ms. Allocated memory is still 125.8MB. Free memory was 87.1MB in the beginning and 69.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,849 INFO L158 Benchmark]: BuchiAutomizer took 3667.63ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 69.6MB in the beginning and 89.9MB in the end (delta: -20.3MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,850 INFO L158 Benchmark]: Witness Printer took 33.20ms. Allocated memory is still 153.1MB. Free memory was 89.9MB in the beginning and 87.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.67ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 71.6MB in the beginning and 91.9MB in the end (delta: -20.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.11ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 89.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.99ms. Allocated memory is still 125.8MB. Free memory was 89.2MB in the beginning and 87.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 484.18ms. Allocated memory is still 125.8MB. Free memory was 87.1MB in the beginning and 69.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3667.63ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 69.6MB in the beginning and 89.9MB in the end (delta: -20.3MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. * Witness Printer took 33.20ms. Allocated memory is still 153.1MB. Free memory was 89.9MB in the beginning and 87.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 5 locations. The remainder module has 185 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 158 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 573 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 573 mSDsluCounter, 867 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 557 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 310 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 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@51cc9a28=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=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a46eb50=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@280d5413=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72f34674=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25889104=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d9c5121=0, tmp=1, \result=0, tmp=0, head=0, \result=1, retValue_acc=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c6f4de=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72fa3e39=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30416dde=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 TRUE \read(tmp___2) [L821] CALL startSystem() [L774] systemActive = 1 [L821] RET startSystem() [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! [2022-07-23 15:26:26,907 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)