./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product22.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 1e4d2a057e25f6959650b499ceac5ee260080b43c52b288c780b8039e90be344 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:57:35,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:57:35,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:57:35,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:57:35,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:57:35,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:57:35,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:57:35,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:57:35,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:57:35,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:57:35,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:57:35,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:57:35,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:57:35,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:57:35,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:57:35,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:57:35,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:57:35,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:57:35,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:57:35,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:57:35,711 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:57:35,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:57:35,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:57:35,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:57:35,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:57:35,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:57:35,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:57:35,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:57:35,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:57:35,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:57:35,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:57:35,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:57:35,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:57:35,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:57:35,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:57:35,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:57:35,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:57:35,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:57:35,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:57:35,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:57:35,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:57:35,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:57:35,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:57:35,750 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:57:35,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:57:35,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:57:35,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:57:35,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:57:35,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:57:35,752 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:57:35,753 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:57:35,753 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:57:35,753 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:57:35,753 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:57:35,753 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:57:35,754 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:57:35,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:57:35,754 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:57:35,754 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:57:35,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:57:35,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:57:35,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:57:35,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:57:35,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:57:35,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:57:35,756 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:57:35,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:57:35,756 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:57:35,756 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:57:35,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:57:35,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:57:35,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:57:35,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:57:35,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:57:35,758 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:57:35,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e4d2a057e25f6959650b499ceac5ee260080b43c52b288c780b8039e90be344 [2022-07-14 15:57:35,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:57:35,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:57:35,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:57:35,965 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:57:35,965 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:57:35,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c [2022-07-14 15:57:36,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a43f2be/be084a5a01ca463ea47045b1ebc0faef/FLAGd21a9851f [2022-07-14 15:57:36,410 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:57:36,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c [2022-07-14 15:57:36,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a43f2be/be084a5a01ca463ea47045b1ebc0faef/FLAGd21a9851f [2022-07-14 15:57:36,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a43f2be/be084a5a01ca463ea47045b1ebc0faef [2022-07-14 15:57:36,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:57:36,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:57:36,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:36,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:57:36,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:57:36,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cadcac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36, skipping insertion in model container [2022-07-14 15:57:36,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:57:36,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:57:36,703 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_spec2_product22.cil.c[16136,16149] [2022-07-14 15:57:36,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:36,719 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:57:36,755 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_spec2_product22.cil.c[16136,16149] [2022-07-14 15:57:36,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:36,784 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:57:36,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36 WrapperNode [2022-07-14 15:57:36,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:36,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:36,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:57:36,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:57:36,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,851 INFO L137 Inliner]: procedures = 55, calls = 155, calls flagged for inlining = 52, calls inlined = 79, statements flattened = 576 [2022-07-14 15:57:36,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:36,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:57:36,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:57:36,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:57:36,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:57:36,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:57:36,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:57:36,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:57:36,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (1/1) ... [2022-07-14 15:57:36,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:57:36,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:57:36,900 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) [2022-07-14 15:57:36,906 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 [2022-07-14 15:57:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:57:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:57:36,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:57:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:57:36,990 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:57:36,991 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:57:37,344 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:57:37,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:57:37,349 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:57:37,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:37 BoogieIcfgContainer [2022-07-14 15:57:37,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:57:37,352 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:57:37,352 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:57:37,368 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:57:37,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:37,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:57:36" (1/3) ... [2022-07-14 15:57:37,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57d0ef08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:37, skipping insertion in model container [2022-07-14 15:57:37,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:37,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:36" (2/3) ... [2022-07-14 15:57:37,370 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57d0ef08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:37, skipping insertion in model container [2022-07-14 15:57:37,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:37,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:37" (3/3) ... [2022-07-14 15:57:37,371 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product22.cil.c [2022-07-14 15:57:37,421 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:57:37,421 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:57:37,421 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:57:37,421 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:57:37,421 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:57:37,421 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:57:37,421 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:57:37,422 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:57:37,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 155 states, 154 states have (on average 1.3571428571428572) internal successors, (209), 154 states have internal predecessors, (209), 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) [2022-07-14 15:57:37,449 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2022-07-14 15:57:37,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:37,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:37,454 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:37,456 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:37,456 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:57:37,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 155 states, 154 states have (on average 1.3571428571428572) internal successors, (209), 154 states have internal predecessors, (209), 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) [2022-07-14 15:57:37,461 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2022-07-14 15:57:37,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:37,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:37,464 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:37,464 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:37,467 INFO L752 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 6#L944true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 85#L937true 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; 156#L952true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 22#L508true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 66#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 143#L799true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 106#L727-2true [2022-07-14 15:57:37,470 INFO L754 eck$LassoCheckResult]: Loop: 106#L727-2true assume !false; 64#L728true assume test_~splverifierCounter~0#1 < 4; 30#L729true test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 18#L737true assume !(0 != test_~tmp~7#1); 102#L737-2true test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 10#L747true assume !(0 != test_~tmp___0~1#1); 44#L747-2true test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 56#L757true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 112#L713true assume { :end_inline_startSystem } true; 20#L765-2true assume { :begin_inline_timeShift } true; 123#L538true assume !(0 != ~pumpRunning~0); 12#L538-2true assume !(0 != ~systemActive~0); 150#L545-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret44#1, __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 99#L876-1true __utac_acc__Specification2_spec__2_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret44#1;havoc __utac_acc__Specification2_spec__2_#t~ret44#1; 5#L810true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 131#L810-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 144#L555true assume { :end_inline_timeShift } true; 106#L727-2true [2022-07-14 15:57:37,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:37,474 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-14 15:57:37,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:37,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296808781] [2022-07-14 15:57:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:37,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:37,572 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:37,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash -560122807, now seen corresponding path program 1 times [2022-07-14 15:57:37,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:37,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834158948] [2022-07-14 15:57:37,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:37,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:57:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:57:37,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:57:37,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834158948] [2022-07-14 15:57:37,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834158948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:57:37,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:57:37,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:57:37,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017170658] [2022-07-14 15:57:37,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:57:37,704 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:57:37,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:57:37,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:57:37,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:57:37,726 INFO L87 Difference]: Start difference. First operand has 155 states, 154 states have (on average 1.3571428571428572) internal successors, (209), 154 states have internal predecessors, (209), 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) [2022-07-14 15:57:37,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:57:37,753 INFO L93 Difference]: Finished difference Result 152 states and 196 transitions. [2022-07-14 15:57:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:57:37,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 196 transitions. [2022-07-14 15:57:37,762 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 95 [2022-07-14 15:57:37,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 142 states and 185 transitions. [2022-07-14 15:57:37,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 142 [2022-07-14 15:57:37,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2022-07-14 15:57:37,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 185 transitions. [2022-07-14 15:57:37,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:57:37,767 INFO L369 hiAutomatonCegarLoop]: Abstraction has 142 states and 185 transitions. [2022-07-14 15:57:37,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states and 185 transitions. [2022-07-14 15:57:37,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-07-14 15:57:37,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.3028169014084507) internal successors, (185), 141 states have internal predecessors, (185), 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) [2022-07-14 15:57:37,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2022-07-14 15:57:37,789 INFO L392 hiAutomatonCegarLoop]: Abstraction has 142 states and 185 transitions. [2022-07-14 15:57:37,789 INFO L374 stractBuchiCegarLoop]: Abstraction has 142 states and 185 transitions. [2022-07-14 15:57:37,789 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:57:37,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 185 transitions. [2022-07-14 15:57:37,791 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 95 [2022-07-14 15:57:37,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:57:37,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:57:37,791 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:57:37,791 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] [2022-07-14 15:57:37,792 INFO L752 eck$LassoCheckResult]: Stem: 456#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 379#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 322#L944 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 323#L937 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; 430#L952 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 354#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 355#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 411#L799 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 443#L727-2 [2022-07-14 15:57:37,792 INFO L754 eck$LassoCheckResult]: Loop: 443#L727-2 assume !false; 410#L728 assume test_~splverifierCounter~0#1 < 4; 370#L729 test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 346#L737 assume !(0 != test_~tmp~7#1); 348#L737-2 test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 331#L747 assume !(0 != test_~tmp___0~1#1); 333#L747-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 394#L757 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 403#L713 assume { :end_inline_startSystem } true; 350#L765-2 assume { :begin_inline_timeShift } true; 351#L538 assume !(0 != ~pumpRunning~0); 336#L538-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 337#L596 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1; 388#L570-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 398#L562-3 assume { :end_inline_processEnvironment__wrappee__base } true; 393#L570-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 426#L596-1 assume { :end_inline_processEnvironment } true; 435#L545-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret44#1, __utac_acc__Specification2_spec__2_#t~ret45#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 437#L876-1 __utac_acc__Specification2_spec__2_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret44#1;havoc __utac_acc__Specification2_spec__2_#t~ret44#1; 319#L810 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 321#L810-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 454#L555 assume { :end_inline_timeShift } true; 443#L727-2 [2022-07-14 15:57:37,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:37,792 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-14 15:57:37,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:37,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867059913] [2022-07-14 15:57:37,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:37,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:37,807 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:37,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:37,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:37,832 INFO L85 PathProgramCache]: Analyzing trace with hash 458054121, now seen corresponding path program 1 times [2022-07-14 15:57:37,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:37,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589469209] [2022-07-14 15:57:37,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:37,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:37,837 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:37,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:37,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:57:37,843 INFO L85 PathProgramCache]: Analyzing trace with hash 900266002, now seen corresponding path program 1 times [2022-07-14 15:57:37,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:57:37,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142592061] [2022-07-14 15:57:37,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:57:37,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:57:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:37,859 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:57:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:57:37,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:57:40,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:57:40 BoogieIcfgContainer [2022-07-14 15:57:40,194 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:57:40,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:57:40,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:57:40,195 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:57:40,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:37" (3/4) ... [2022-07-14 15:57:40,197 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:57:40,240 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:57:40,240 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:57:40,241 INFO L158 Benchmark]: Toolchain (without parser) took 3805.13ms. Allocated memory was 94.4MB in the beginning and 142.6MB in the end (delta: 48.2MB). Free memory was 65.8MB in the beginning and 104.7MB in the end (delta: -39.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-07-14 15:57:40,241 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:57:40,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.57ms. Allocated memory is still 94.4MB. Free memory was 65.5MB in the beginning and 62.1MB in the end (delta: 3.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 15:57:40,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.09ms. Allocated memory is still 94.4MB. Free memory was 62.1MB in the beginning and 58.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:40,242 INFO L158 Benchmark]: Boogie Preprocessor took 22.72ms. Allocated memory is still 94.4MB. Free memory was 58.9MB in the beginning and 56.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:40,242 INFO L158 Benchmark]: RCFGBuilder took 476.07ms. Allocated memory is still 94.4MB. Free memory was 56.4MB in the beginning and 67.6MB in the end (delta: -11.2MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-07-14 15:57:40,243 INFO L158 Benchmark]: BuchiAutomizer took 2842.98ms. Allocated memory was 94.4MB in the beginning and 142.6MB in the end (delta: 48.2MB). Free memory was 67.6MB in the beginning and 107.8MB in the end (delta: -40.2MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2022-07-14 15:57:40,243 INFO L158 Benchmark]: Witness Printer took 45.03ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 104.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:57:40,245 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 75.5MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.57ms. Allocated memory is still 94.4MB. Free memory was 65.5MB in the beginning and 62.1MB in the end (delta: 3.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.09ms. Allocated memory is still 94.4MB. Free memory was 62.1MB in the beginning and 58.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.72ms. Allocated memory is still 94.4MB. Free memory was 58.9MB in the beginning and 56.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.07ms. Allocated memory is still 94.4MB. Free memory was 56.4MB in the beginning and 67.6MB in the end (delta: -11.2MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2842.98ms. Allocated memory was 94.4MB in the beginning and 142.6MB in the end (delta: 48.2MB). Free memory was 67.6MB in the beginning and 107.8MB in the end (delta: -40.2MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. * Witness Printer took 45.03ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 104.7MB in the end (delta: 3.1MB). 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 142 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 191 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 193 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 727]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@240e9693=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6651295e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56629308=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, \result=0, tmp=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19844af2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67885e11=0, tmp___2=29, methAndRunningLastTime=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dd20719=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ac5fc23=29, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19d92394=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a4d466f=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, tmp___0=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 727]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L530] int pumpRunning = 0; [L531] int systemActive = 1; [L793] int methAndRunningLastTime ; [L833] int waterLevel = 1; [L834] int methaneLevelCritical = 0; [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification2_spec__1() [L798] methAndRunningLastTime = 0 [L489] RET __utac_acc__Specification2_spec__1() [L490] CALL test() [L718] int splverifierCounter ; [L719] int tmp ; [L720] int tmp___0 ; [L721] int tmp___1 ; [L722] int tmp___2 ; [L725] splverifierCounter = 0 Loop: [L727] COND TRUE 1 [L729] COND TRUE splverifierCounter < 4 [L735] tmp = __VERIFIER_nondet_int() [L737] COND FALSE !(\read(tmp)) [L745] tmp___0 = __VERIFIER_nondet_int() [L747] COND FALSE !(\read(tmp___0)) [L755] tmp___2 = __VERIFIER_nondet_int() [L757] COND TRUE \read(tmp___2) [L759] CALL startSystem() [L712] systemActive = 1 [L759] RET startSystem() [L772] CALL timeShift() [L538] COND FALSE !(\read(pumpRunning)) [L545] COND TRUE \read(systemActive) [L547] CALL processEnvironment() [L593] int tmp ; [L596] COND FALSE !(\read(pumpRunning)) [L611] CALL processEnvironment__wrappee__lowWaterSensor() [L567] int tmp ; [L570] COND FALSE !(\read(pumpRunning)) [L585] FCALL processEnvironment__wrappee__base() [L611] RET processEnvironment__wrappee__lowWaterSensor() [L547] RET processEnvironment() [L553] CALL __utac_acc__Specification2_spec__2() [L803] int tmp ; [L804] int tmp___0 ; [L808] CALL, EXPR isMethaneLevelCritical() [L872] int retValue_acc ; [L875] retValue_acc = methaneLevelCritical [L876] return (retValue_acc); [L808] RET, EXPR isMethaneLevelCritical() [L808] tmp = isMethaneLevelCritical() [L810] COND FALSE !(\read(tmp)) [L826] methAndRunningLastTime = 0 [L553] RET __utac_acc__Specification2_spec__2() [L772] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:57:40,281 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)