./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product26.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product26.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 602cfe18b91619df9f72a635538ac12a04ad2b1a7317fc21bfb2789503e11368 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:03,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:03,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:03,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:04,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:04,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:04,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:04,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:04,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:04,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:04,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:04,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:04,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:04,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:04,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:04,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:04,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:04,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:04,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:04,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:04,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:04,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:04,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:04,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:04,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:04,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:04,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:04,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:04,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:04,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:04,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:04,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:04,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:04,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:04,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:04,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:04,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:04,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:04,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:04,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:04,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:04,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:04,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:04,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:04,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:04,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:04,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:04,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:04,066 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:04,066 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:04,066 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:04,066 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:04,066 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:04,067 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:04,067 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:04,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:04,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:04,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:04,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:04,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:04,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:04,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:04,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:04,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:04,068 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:04,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:04,068 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:04,068 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:04,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:04,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:04,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:04,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:04,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:04,070 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:04,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 602cfe18b91619df9f72a635538ac12a04ad2b1a7317fc21bfb2789503e11368 [2022-02-21 04:16:04,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:04,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:04,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:04,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:04,294 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:04,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product26.cil.c [2022-02-21 04:16:04,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e368b55/d94d067e8a4b49408fb8cfcdb0239489/FLAGb3048a7e2 [2022-02-21 04:16:04,661 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:04,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product26.cil.c [2022-02-21 04:16:04,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e368b55/d94d067e8a4b49408fb8cfcdb0239489/FLAGb3048a7e2 [2022-02-21 04:16:05,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e368b55/d94d067e8a4b49408fb8cfcdb0239489 [2022-02-21 04:16:05,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:05,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:05,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:05,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:05,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:05,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520c1d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05, skipping insertion in model container [2022-02-21 04:16:05,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:05,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:05,473 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_product26.cil.c[5426,5439] [2022-02-21 04:16:05,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:05,639 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:05,678 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_product26.cil.c[5426,5439] [2022-02-21 04:16:05,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:05,785 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:05,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05 WrapperNode [2022-02-21 04:16:05,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:05,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:05,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:05,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:05,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,898 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 50, calls inlined = 49, statements flattened = 396 [2022-02-21 04:16:05,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:05,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:05,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:05,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:05,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:05,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:05,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:05,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:05,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (1/1) ... [2022-02-21 04:16:05,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:06,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:06,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:06,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:06,149 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:06,150 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:06,669 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:06,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:06,687 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:06,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:06 BoogieIcfgContainer [2022-02-21 04:16:06,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:06,690 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:06,690 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:06,692 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:06,693 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:06,693 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:05" (1/3) ... [2022-02-21 04:16:06,694 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27f127cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:06, skipping insertion in model container [2022-02-21 04:16:06,694 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:06,694 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:05" (2/3) ... [2022-02-21 04:16:06,694 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27f127cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:06, skipping insertion in model container [2022-02-21 04:16:06,695 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:06,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:06" (3/3) ... [2022-02-21 04:16:06,696 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product26.cil.c [2022-02-21 04:16:06,738 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:06,739 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:06,739 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:06,739 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:06,739 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:06,739 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:06,739 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:06,739 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:06,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:06,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-02-21 04:16:06,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:06,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:06,811 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:06,811 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:06,811 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:06,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:06,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-02-21 04:16:06,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:06,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:06,834 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:06,834 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:06,846 INFO L791 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~2#1, main_~tmp~1#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 56#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 101#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 19#L83true main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 37#L218true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 53#L193true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 64#L97true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 89#L891-2true [2022-02-21 04:16:06,848 INFO L793 eck$LassoCheckResult]: Loop: 89#L891-2true assume !false; 97#L892true assume test_~splverifierCounter~0#1 < 4; 70#L893true test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 104#L901true assume !(0 != test_~tmp~8#1); 88#L901-2true test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 52#L911true assume !(0 != test_~tmp___0~2#1); 11#L911-2true test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 94#L921true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 15#L877true assume { :end_inline_startSystem } true; 59#L929-2true assume { :begin_inline_timeShift } true; 61#L710true assume !(0 != ~pumpRunning~0); 93#L710-2true assume !(0 != ~systemActive~0); 54#L717-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 50#L279true __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 17#L108true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 74#L108-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 14#L727true assume { :end_inline_timeShift } true; 89#L891-2true [2022-02-21 04:16:06,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:06,852 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:06,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:06,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353096696] [2022-02-21 04:16:06,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:06,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:06,964 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:07,010 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:07,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:07,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2068879063, now seen corresponding path program 1 times [2022-02-21 04:16:07,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:07,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316627376] [2022-02-21 04:16:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:07,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:07,111 INFO L290 TraceCheckUtils]: 0: Hoare triple {113#true} assume !false; {113#true} is VALID [2022-02-21 04:16:07,111 INFO L290 TraceCheckUtils]: 1: Hoare triple {113#true} assume test_~splverifierCounter~0#1 < 4; {113#true} is VALID [2022-02-21 04:16:07,111 INFO L290 TraceCheckUtils]: 2: Hoare triple {113#true} test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; {113#true} is VALID [2022-02-21 04:16:07,111 INFO L290 TraceCheckUtils]: 3: Hoare triple {113#true} assume !(0 != test_~tmp~8#1); {113#true} is VALID [2022-02-21 04:16:07,112 INFO L290 TraceCheckUtils]: 4: Hoare triple {113#true} test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; {113#true} is VALID [2022-02-21 04:16:07,112 INFO L290 TraceCheckUtils]: 5: Hoare triple {113#true} assume !(0 != test_~tmp___0~2#1); {113#true} is VALID [2022-02-21 04:16:07,113 INFO L290 TraceCheckUtils]: 6: Hoare triple {113#true} test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; {113#true} is VALID [2022-02-21 04:16:07,114 INFO L290 TraceCheckUtils]: 7: Hoare triple {113#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {115#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:07,115 INFO L290 TraceCheckUtils]: 8: Hoare triple {115#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {115#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:07,116 INFO L290 TraceCheckUtils]: 9: Hoare triple {115#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {115#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:07,117 INFO L290 TraceCheckUtils]: 10: Hoare triple {115#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {115#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:07,117 INFO L290 TraceCheckUtils]: 11: Hoare triple {115#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {114#false} is VALID [2022-02-21 04:16:07,117 INFO L290 TraceCheckUtils]: 12: Hoare triple {114#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; {114#false} is VALID [2022-02-21 04:16:07,117 INFO L290 TraceCheckUtils]: 13: Hoare triple {114#false} __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; {114#false} is VALID [2022-02-21 04:16:07,118 INFO L290 TraceCheckUtils]: 14: Hoare triple {114#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; {114#false} is VALID [2022-02-21 04:16:07,118 INFO L290 TraceCheckUtils]: 15: Hoare triple {114#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {114#false} is VALID [2022-02-21 04:16:07,118 INFO L290 TraceCheckUtils]: 16: Hoare triple {114#false} assume { :end_inline_timeShift } true; {114#false} is VALID [2022-02-21 04:16:07,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:07,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:07,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316627376] [2022-02-21 04:16:07,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316627376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:07,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:07,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:07,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99012835] [2022-02-21 04:16:07,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:07,126 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:07,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:07,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:07,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:07,154 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 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) [2022-02-21 04:16:07,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:07,286 INFO L93 Difference]: Finished difference Result 104 states and 133 transitions. [2022-02-21 04:16:07,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:07,287 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:16:07,300 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:07,303 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 133 transitions. [2022-02-21 04:16:07,306 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2022-02-21 04:16:07,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 94 states and 122 transitions. [2022-02-21 04:16:07,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2022-02-21 04:16:07,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2022-02-21 04:16:07,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 122 transitions. [2022-02-21 04:16:07,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:07,312 INFO L681 BuchiCegarLoop]: Abstraction has 94 states and 122 transitions. [2022-02-21 04:16:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 122 transitions. [2022-02-21 04:16:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-02-21 04:16:07,331 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:07,332 INFO L82 GeneralOperation]: Start isEquivalent. First operand 94 states and 122 transitions. Second operand has 94 states, 94 states have (on average 1.297872340425532) internal successors, (122), 93 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:07,333 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states and 122 transitions. Second operand has 94 states, 94 states have (on average 1.297872340425532) internal successors, (122), 93 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:07,334 INFO L87 Difference]: Start difference. First operand 94 states and 122 transitions. Second operand has 94 states, 94 states have (on average 1.297872340425532) internal successors, (122), 93 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:07,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:07,337 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-02-21 04:16:07,337 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2022-02-21 04:16:07,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:07,338 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:07,339 INFO L74 IsIncluded]: Start isIncluded. First operand has 94 states, 94 states have (on average 1.297872340425532) internal successors, (122), 93 states have internal predecessors, (122), 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 94 states and 122 transitions. [2022-02-21 04:16:07,339 INFO L87 Difference]: Start difference. First operand has 94 states, 94 states have (on average 1.297872340425532) internal successors, (122), 93 states have internal predecessors, (122), 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 94 states and 122 transitions. [2022-02-21 04:16:07,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:07,342 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-02-21 04:16:07,342 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2022-02-21 04:16:07,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:07,342 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:07,343 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:07,343 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:07,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.297872340425532) internal successors, (122), 93 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:07,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2022-02-21 04:16:07,346 INFO L704 BuchiCegarLoop]: Abstraction has 94 states and 122 transitions. [2022-02-21 04:16:07,346 INFO L587 BuchiCegarLoop]: Abstraction has 94 states and 122 transitions. [2022-02-21 04:16:07,346 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:07,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 122 transitions. [2022-02-21 04:16:07,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2022-02-21 04:16:07,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:07,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:07,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:07,348 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:07,348 INFO L791 eck$LassoCheckResult]: Stem: 307#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);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 298#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~2#1, main_~tmp~1#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 299#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 313#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 269#L83 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 270#L218 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 300#L193 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 228#L97 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 229#L891-2 [2022-02-21 04:16:07,349 INFO L793 eck$LassoCheckResult]: Loop: 229#L891-2 assume !false; 293#L892 assume test_~splverifierCounter~0#1 < 4; 242#L893 test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 243#L901 assume !(0 != test_~tmp~8#1); 276#L901-2 test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 291#L911 assume !(0 != test_~tmp___0~2#1); 246#L911-2 test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 247#L921 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 226#L929 assume 0 != test_~tmp___1~0#1; 227#L929-2 assume { :begin_inline_timeShift } true; 220#L710 assume !(0 != ~pumpRunning~0); 221#L710-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 294#L742 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 290#L734-1 assume { :end_inline_processEnvironment__wrappee__base } true; 279#L742-1 assume { :end_inline_processEnvironment } true; 301#L717-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 310#L279 __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 266#L108 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 253#L108-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 254#L727 assume { :end_inline_timeShift } true; 229#L891-2 [2022-02-21 04:16:07,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:07,349 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:07,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:07,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307660766] [2022-02-21 04:16:07,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:07,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:07,367 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:07,385 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:07,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:07,386 INFO L85 PathProgramCache]: Analyzing trace with hash -967019987, now seen corresponding path program 1 times [2022-02-21 04:16:07,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:07,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998384120] [2022-02-21 04:16:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:07,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:07,392 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:07,402 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:07,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:07,409 INFO L85 PathProgramCache]: Analyzing trace with hash 405505686, now seen corresponding path program 1 times [2022-02-21 04:16:07,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:07,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958701459] [2022-02-21 04:16:07,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:07,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:07,428 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:07,446 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:10,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:10 BoogieIcfgContainer [2022-02-21 04:16:10,299 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:10,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:10,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:10,300 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:10,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:06" (3/4) ... [2022-02-21 04:16:10,302 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:10,357 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:10,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:10,358 INFO L158 Benchmark]: Toolchain (without parser) took 5271.34ms. Allocated memory was 115.3MB in the beginning and 192.9MB in the end (delta: 77.6MB). Free memory was 72.7MB in the beginning and 86.0MB in the end (delta: -13.2MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:10,358 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:10,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.96ms. Allocated memory is still 115.3MB. Free memory was 72.5MB in the beginning and 78.4MB in the end (delta: -5.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:10,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.19ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 75.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:10,359 INFO L158 Benchmark]: Boogie Preprocessor took 71.46ms. Allocated memory is still 115.3MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:10,360 INFO L158 Benchmark]: RCFGBuilder took 716.69ms. Allocated memory is still 115.3MB. Free memory was 73.1MB in the beginning and 53.1MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:10,360 INFO L158 Benchmark]: BuchiAutomizer took 3609.26ms. Allocated memory was 115.3MB in the beginning and 192.9MB in the end (delta: 77.6MB). Free memory was 53.1MB in the beginning and 88.1MB in the end (delta: -35.0MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:10,360 INFO L158 Benchmark]: Witness Printer took 57.53ms. Allocated memory is still 192.9MB. Free memory was 88.1MB in the beginning and 86.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:10,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.96ms. Allocated memory is still 115.3MB. Free memory was 72.5MB in the beginning and 78.4MB in the end (delta: -5.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.19ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 75.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.46ms. Allocated memory is still 115.3MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 716.69ms. Allocated memory is still 115.3MB. Free memory was 73.1MB in the beginning and 53.1MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3609.26ms. Allocated memory was 115.3MB in the beginning and 192.9MB in the end (delta: 77.6MB). Free memory was 53.1MB in the beginning and 88.1MB in the end (delta: -35.0MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. * Witness Printer took 57.53ms. Allocated memory is still 192.9MB. Free memory was 88.1MB in the beginning and 86.0MB 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 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 94 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 2 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 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 94 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 130 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, 130 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 891]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75ff0f9a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@414be6f5=29, NULL=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6351c066=0, NULL=1, retValue_acc=0, methaneLevelCritical=0, \result=0, retValue_acc=1, \result=1, retValue_acc=0, tmp=0, tmp___2=0, methAndRunningLastTime=0, cleanupTimeShifts=4, \result=0, tmp=1, tmp=0, head=0, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ba06f15=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75211562=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a42e351=0, tmp___0=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d16b0ed=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dab196d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 891]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L91] int methAndRunningLastTime ; [L130] int cleanupTimeShifts = 4; [L236] int waterLevel = 1; [L237] int methaneLevelCritical = 0; [L503] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] int systemActive = 1; [L209] int retValue_acc ; [L210] int tmp ; [L214] FCALL select_helpers() [L215] FCALL select_features() [L216] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L216] RET, EXPR valid_product() [L216] tmp = valid_product() [L218] COND TRUE \read(tmp) [L220] FCALL setup() [L221] CALL runTest() [L202] CALL __utac_acc__Specification2_spec__1() [L96] methAndRunningLastTime = 0 [L202] RET __utac_acc__Specification2_spec__1() [L203] CALL test() [L882] int splverifierCounter ; [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; [L886] int tmp___2 ; [L889] splverifierCounter = 0 Loop: [L891] COND TRUE 1 [L893] COND TRUE splverifierCounter < 4 [L899] tmp = __VERIFIER_nondet_int() [L901] COND FALSE !(\read(tmp)) [L909] tmp___0 = __VERIFIER_nondet_int() [L911] COND FALSE !(\read(tmp___0)) [L919] tmp___2 = __VERIFIER_nondet_int() [L921] COND FALSE !(\read(tmp___2)) [L927] tmp___1 = __VERIFIER_nondet_int() [L929] COND TRUE \read(tmp___1) [L936] CALL timeShift() [L710] COND FALSE !(\read(pumpRunning)) [L717] COND TRUE \read(systemActive) [L719] CALL processEnvironment() [L739] int tmp ; [L742] COND FALSE !(\read(pumpRunning)) [L757] FCALL processEnvironment__wrappee__base() [L719] RET processEnvironment() [L725] CALL __utac_acc__Specification2_spec__2() [L101] int tmp ; [L102] int tmp___0 ; [L106] CALL, EXPR isMethaneLevelCritical() [L275] int retValue_acc ; [L278] retValue_acc = methaneLevelCritical [L279] return (retValue_acc); [L106] RET, EXPR isMethaneLevelCritical() [L106] tmp = isMethaneLevelCritical() [L108] COND FALSE !(\read(tmp)) [L124] methAndRunningLastTime = 0 [L725] RET __utac_acc__Specification2_spec__2() [L936] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:10,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)