./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product02.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_spec1_product02.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 946d32f68529fe8e8ef40d628a80388e3f0181b3c7613933ab7ca33bcc37bf44 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:14:45,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:14:45,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:14:45,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:14:45,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:14:45,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:14:45,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:14:45,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:14:45,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:14:45,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:14:45,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:14:45,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:14:45,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:14:45,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:14:45,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:14:45,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:14:45,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:14:45,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:14:45,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:14:45,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:14:45,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:14:45,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:14:45,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:14:45,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:14:45,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:14:45,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:14:45,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:14:45,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:14:45,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:14:45,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:14:45,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:14:45,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:14:45,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:14:45,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:14:45,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:14:45,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:14:45,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:14:45,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:14:45,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:14:45,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:14:45,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:14:45,526 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:14:45,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:14:45,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:14:45,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:14:45,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:14:45,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:14:45,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:14:45,541 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:14:45,542 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:14:45,542 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:14:45,542 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:14:45,542 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:14:45,542 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:14:45,543 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:14:45,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:14:45,543 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:14:45,543 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:14:45,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:14:45,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:14:45,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:14:45,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:14:45,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:14:45,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:14:45,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:14:45,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:14:45,545 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:14:45,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:14:45,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:14:45,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:14:45,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:14:45,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:14:45,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:14:45,547 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:14:45,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 946d32f68529fe8e8ef40d628a80388e3f0181b3c7613933ab7ca33bcc37bf44 [2022-02-21 04:14:45,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:14:45,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:14:45,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:14:45,727 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:14:45,727 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:14:45,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product02.cil.c [2022-02-21 04:14:45,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab4b4091/d16201a7d6b14dff92eca1eb632971f5/FLAG51be73d66 [2022-02-21 04:14:46,153 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:14:46,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product02.cil.c [2022-02-21 04:14:46,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab4b4091/d16201a7d6b14dff92eca1eb632971f5/FLAG51be73d66 [2022-02-21 04:14:46,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab4b4091/d16201a7d6b14dff92eca1eb632971f5 [2022-02-21 04:14:46,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:14:46,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:14:46,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:14:46,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:14:46,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:14:46,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554f7788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46, skipping insertion in model container [2022-02-21 04:14:46,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:14:46,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:14:46,372 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_spec1_product02.cil.c[7173,7186] [2022-02-21 04:14:46,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:14:46,446 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:14:46,491 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_spec1_product02.cil.c[7173,7186] [2022-02-21 04:14:46,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:14:46,546 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:14:46,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46 WrapperNode [2022-02-21 04:14:46,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:14:46,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:14:46,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:14:46,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:14:46,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,607 INFO L137 Inliner]: procedures = 50, calls = 145, calls flagged for inlining = 42, calls inlined = 33, statements flattened = 281 [2022-02-21 04:14:46,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:14:46,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:14:46,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:14:46,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:14:46,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:14:46,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:14:46,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:14:46,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:14:46,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (1/1) ... [2022-02-21 04:14:46,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:14:46,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:14:46,667 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 04:14:46,669 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 04:14:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:14:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:14:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:14:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:14:46,738 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:14:46,739 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:14:46,936 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:14:46,940 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:14:46,940 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:14:46,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:14:46 BoogieIcfgContainer [2022-02-21 04:14:46,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:14:46,942 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:14:46,942 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:14:46,961 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:14:46,962 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:14:46,962 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:14:46" (1/3) ... [2022-02-21 04:14:46,962 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@390ab5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:14:46, skipping insertion in model container [2022-02-21 04:14:46,963 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:14:46,963 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:14:46" (2/3) ... [2022-02-21 04:14:46,963 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@390ab5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:14:46, skipping insertion in model container [2022-02-21 04:14:46,963 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:14:46,963 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:14:46" (3/3) ... [2022-02-21 04:14:46,964 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product02.cil.c [2022-02-21 04:14:47,011 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:14:47,011 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:14:47,011 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:14:47,011 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:14:47,011 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:14:47,012 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:14:47,012 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:14:47,012 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:14:47,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 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 04:14:47,048 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2022-02-21 04:14:47,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:14:47,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:14:47,052 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:14:47,052 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 04:14:47,052 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:14:47,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 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 04:14:47,060 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2022-02-21 04:14:47,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:14:47,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:14:47,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:14:47,062 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 04:14:47,065 INFO L791 eck$LassoCheckResult]: Stem: 62#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 24#L393true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 19#L386true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 13#L401true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 66#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 55#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 34#L287-2true [2022-02-21 04:14:47,066 INFO L793 eck$LassoCheckResult]: Loop: 34#L287-2true assume !false; 36#L288true assume test_~splverifierCounter~0#1 < 4; 45#L289true test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 41#L297true assume !(0 != test_~tmp~1#1); 49#L297-2true test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 17#L307true assume !(0 != test_~tmp___0~0#1); 23#L307-2true test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 7#L317true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 74#L273true assume { :end_inline_startSystem } true; 44#L325-2true assume { :begin_inline_timeShift } true; 72#L169true assume !(0 != ~pumpRunning~0); 58#L169-2true assume !(0 != ~systemActive~0); 29#L176-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret18#1, __utac_acc__Specification1_spec__1_#t~ret19#1, __utac_acc__Specification1_spec__1_~tmp~2#1, __utac_acc__Specification1_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification1_spec__1_~tmp~2#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 35#L450true __utac_acc__Specification1_spec__1_#t~ret18#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~2#1 := __utac_acc__Specification1_spec__1_#t~ret18#1;havoc __utac_acc__Specification1_spec__1_#t~ret18#1; 37#L353true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2#1); 64#L353-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 76#L186true assume { :end_inline_timeShift } true; 34#L287-2true [2022-02-21 04:14:47,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:14:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:14:47,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:14:47,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122946641] [2022-02-21 04:14:47,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:14:47,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:14:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:14:47,183 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:14:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:14:47,221 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:14:47,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:14:47,225 INFO L85 PathProgramCache]: Analyzing trace with hash 289308929, now seen corresponding path program 1 times [2022-02-21 04:14:47,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:14:47,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961111999] [2022-02-21 04:14:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:14:47,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:14:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:14:47,297 INFO L290 TraceCheckUtils]: 0: Hoare triple {82#true} assume !false; {82#true} is VALID [2022-02-21 04:14:47,297 INFO L290 TraceCheckUtils]: 1: Hoare triple {82#true} assume test_~splverifierCounter~0#1 < 4; {82#true} is VALID [2022-02-21 04:14:47,297 INFO L290 TraceCheckUtils]: 2: Hoare triple {82#true} test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; {82#true} is VALID [2022-02-21 04:14:47,298 INFO L290 TraceCheckUtils]: 3: Hoare triple {82#true} assume !(0 != test_~tmp~1#1); {82#true} is VALID [2022-02-21 04:14:47,298 INFO L290 TraceCheckUtils]: 4: Hoare triple {82#true} test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; {82#true} is VALID [2022-02-21 04:14:47,298 INFO L290 TraceCheckUtils]: 5: Hoare triple {82#true} assume !(0 != test_~tmp___0~0#1); {82#true} is VALID [2022-02-21 04:14:47,298 INFO L290 TraceCheckUtils]: 6: Hoare triple {82#true} test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; {82#true} is VALID [2022-02-21 04:14:47,299 INFO L290 TraceCheckUtils]: 7: Hoare triple {82#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {84#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:14:47,299 INFO L290 TraceCheckUtils]: 8: Hoare triple {84#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {84#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:14:47,300 INFO L290 TraceCheckUtils]: 9: Hoare triple {84#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {84#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:14:47,300 INFO L290 TraceCheckUtils]: 10: Hoare triple {84#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {84#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:14:47,301 INFO L290 TraceCheckUtils]: 11: Hoare triple {84#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {83#false} is VALID [2022-02-21 04:14:47,301 INFO L290 TraceCheckUtils]: 12: Hoare triple {83#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret18#1, __utac_acc__Specification1_spec__1_#t~ret19#1, __utac_acc__Specification1_spec__1_~tmp~2#1, __utac_acc__Specification1_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification1_spec__1_~tmp~2#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {83#false} is VALID [2022-02-21 04:14:47,301 INFO L290 TraceCheckUtils]: 13: Hoare triple {83#false} __utac_acc__Specification1_spec__1_#t~ret18#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~2#1 := __utac_acc__Specification1_spec__1_#t~ret18#1;havoc __utac_acc__Specification1_spec__1_#t~ret18#1; {83#false} is VALID [2022-02-21 04:14:47,301 INFO L290 TraceCheckUtils]: 14: Hoare triple {83#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2#1); {83#false} is VALID [2022-02-21 04:14:47,302 INFO L290 TraceCheckUtils]: 15: Hoare triple {83#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {83#false} is VALID [2022-02-21 04:14:47,302 INFO L290 TraceCheckUtils]: 16: Hoare triple {83#false} assume { :end_inline_timeShift } true; {83#false} is VALID [2022-02-21 04:14:47,303 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 04:14:47,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:14:47,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961111999] [2022-02-21 04:14:47,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961111999] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:14:47,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:14:47,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:14:47,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674593939] [2022-02-21 04:14:47,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:14:47,307 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:14:47,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:14:47,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:14:47,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:14:47,326 INFO L87 Difference]: Start difference. First operand has 76 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 75 states have internal predecessors, (103), 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 04:14:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:14:47,437 INFO L93 Difference]: Finished difference Result 73 states and 90 transitions. [2022-02-21 04:14:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:14:47,439 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 04:14:47,458 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 04:14:47,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 90 transitions. [2022-02-21 04:14:47,468 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2022-02-21 04:14:47,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 63 states and 79 transitions. [2022-02-21 04:14:47,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2022-02-21 04:14:47,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2022-02-21 04:14:47,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 79 transitions. [2022-02-21 04:14:47,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:14:47,478 INFO L681 BuchiCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-02-21 04:14:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 79 transitions. [2022-02-21 04:14:47,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-02-21 04:14:47,498 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:14:47,502 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states and 79 transitions. Second operand has 63 states, 63 states have (on average 1.253968253968254) internal successors, (79), 62 states have internal predecessors, (79), 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 04:14:47,503 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states and 79 transitions. Second operand has 63 states, 63 states have (on average 1.253968253968254) internal successors, (79), 62 states have internal predecessors, (79), 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 04:14:47,506 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 63 states, 63 states have (on average 1.253968253968254) internal successors, (79), 62 states have internal predecessors, (79), 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 04:14:47,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:14:47,513 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2022-02-21 04:14:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-02-21 04:14:47,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:14:47,515 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:14:47,516 INFO L74 IsIncluded]: Start isIncluded. First operand has 63 states, 63 states have (on average 1.253968253968254) internal successors, (79), 62 states have internal predecessors, (79), 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 63 states and 79 transitions. [2022-02-21 04:14:47,518 INFO L87 Difference]: Start difference. First operand has 63 states, 63 states have (on average 1.253968253968254) internal successors, (79), 62 states have internal predecessors, (79), 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 63 states and 79 transitions. [2022-02-21 04:14:47,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:14:47,524 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2022-02-21 04:14:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-02-21 04:14:47,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:14:47,525 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:14:47,525 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:14:47,526 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:14:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.253968253968254) internal successors, (79), 62 states have internal predecessors, (79), 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 04:14:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-02-21 04:14:47,534 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-02-21 04:14:47,534 INFO L587 BuchiCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-02-21 04:14:47,534 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:14:47,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 79 transitions. [2022-02-21 04:14:47,536 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2022-02-21 04:14:47,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:14:47,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:14:47,539 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:14:47,540 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:14:47,540 INFO L791 eck$LassoCheckResult]: Stem: 218#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 213#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 184#L393 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 182#L386 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 176#L401 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 177#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 215#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet14#1, test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 196#L287-2 [2022-02-21 04:14:47,540 INFO L793 eck$LassoCheckResult]: Loop: 196#L287-2 assume !false; 197#L288 assume test_~splverifierCounter~0#1 < 4; 198#L289 test_~tmp~1#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 202#L297 assume !(0 != test_~tmp~1#1); 204#L297-2 test_~tmp___0~0#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 180#L307 assume !(0 != test_~tmp___0~0#1); 181#L307-2 test_~tmp___2~0#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 165#L317 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 166#L325 assume 0 != test_~tmp___1~0#1; 207#L325-2 assume { :begin_inline_timeShift } true; 208#L169 assume !(0 != ~pumpRunning~0); 194#L169-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 217#L193 assume { :end_inline_processEnvironment } true; 191#L176-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret18#1, __utac_acc__Specification1_spec__1_#t~ret19#1, __utac_acc__Specification1_spec__1_~tmp~2#1, __utac_acc__Specification1_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification1_spec__1_~tmp~2#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 192#L450 __utac_acc__Specification1_spec__1_#t~ret18#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~2#1 := __utac_acc__Specification1_spec__1_#t~ret18#1;havoc __utac_acc__Specification1_spec__1_#t~ret18#1; 195#L353 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~2#1); 199#L353-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 219#L186 assume { :end_inline_timeShift } true; 196#L287-2 [2022-02-21 04:14:47,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:14:47,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:14:47,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:14:47,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234352024] [2022-02-21 04:14:47,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:14:47,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:14:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:14:47,585 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:14:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:14:47,615 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:14:47,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:14:47,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1426283493, now seen corresponding path program 1 times [2022-02-21 04:14:47,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:14:47,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108078224] [2022-02-21 04:14:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:14:47,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:14:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:14:47,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:14:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:14:47,637 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:14:47,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:14:47,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1686042455, now seen corresponding path program 1 times [2022-02-21 04:14:47,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:14:47,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051916583] [2022-02-21 04:14:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:14:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:14:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:14:47,656 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:14:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:14:47,690 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:14:50,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:14:50 BoogieIcfgContainer [2022-02-21 04:14:50,217 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:14:50,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:14:50,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:14:50,217 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:14:50,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:14:46" (3/4) ... [2022-02-21 04:14:50,220 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:14:50,255 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:14:50,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:14:50,258 INFO L158 Benchmark]: Toolchain (without parser) took 4081.94ms. Allocated memory was 92.3MB in the beginning and 138.4MB in the end (delta: 46.1MB). Free memory was 62.6MB in the beginning and 96.2MB in the end (delta: -33.6MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-02-21 04:14:50,259 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:14:50,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.88ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 62.3MB in the beginning and 79.6MB in the end (delta: -17.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:14:50,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.68ms. Allocated memory is still 113.2MB. Free memory was 79.6MB in the beginning and 76.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:14:50,263 INFO L158 Benchmark]: Boogie Preprocessor took 29.06ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 75.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:14:50,263 INFO L158 Benchmark]: RCFGBuilder took 301.04ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 89.0MB in the end (delta: -13.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-02-21 04:14:50,263 INFO L158 Benchmark]: BuchiAutomizer took 3274.39ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 89.0MB in the beginning and 98.3MB in the end (delta: -9.3MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. [2022-02-21 04:14:50,264 INFO L158 Benchmark]: Witness Printer took 40.21ms. Allocated memory is still 138.4MB. Free memory was 98.3MB in the beginning and 96.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:14:50,265 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 0.16ms. Allocated memory is still 92.3MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.88ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 62.3MB in the beginning and 79.6MB in the end (delta: -17.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.68ms. Allocated memory is still 113.2MB. Free memory was 79.6MB in the beginning and 76.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.06ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 75.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.04ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 89.0MB in the end (delta: -13.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3274.39ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 89.0MB in the beginning and 98.3MB in the end (delta: -9.3MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. * Witness Printer took 40.21ms. Allocated memory is still 138.4MB. Free memory was 98.3MB in the beginning and 96.2MB 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 63 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. 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 63 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 87 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, 87 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: 287]: 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@60eb3296=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19417ef9=0, head=0, pumpRunning=0, retValue_acc=0, tmp___0=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f130135=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3059ad8c=0, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e6344e4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c95850f=29, tmp___2=0, tmp=0, cleanupTimeShifts=4, tmp=1, \result=0, head=0, tmp___1=29, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53b1c5c0=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 287]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L161] int pumpRunning = 0; [L162] int systemActive = 1; [L407] int waterLevel = 1; [L408] int methaneLevelCritical = 0; [L665] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L397] int retValue_acc ; [L400] retValue_acc = 1 [L401] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L278] int splverifierCounter ; [L279] int tmp ; [L280] int tmp___0 ; [L281] int tmp___1 ; [L282] int tmp___2 ; [L285] splverifierCounter = 0 Loop: [L287] COND TRUE 1 [L289] COND TRUE splverifierCounter < 4 [L295] tmp = __VERIFIER_nondet_int() [L297] COND FALSE !(\read(tmp)) [L305] tmp___0 = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp___0)) [L315] tmp___2 = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp___2)) [L323] tmp___1 = __VERIFIER_nondet_int() [L325] COND TRUE \read(tmp___1) [L332] CALL timeShift() [L169] COND FALSE !(\read(pumpRunning)) [L176] COND TRUE \read(systemActive) [L178] FCALL processEnvironment() [L184] CALL __utac_acc__Specification1_spec__1() [L346] int tmp ; [L347] int tmp___0 ; [L351] CALL, EXPR isMethaneLevelCritical() [L446] int retValue_acc ; [L449] retValue_acc = methaneLevelCritical [L450] return (retValue_acc); [L351] RET, EXPR isMethaneLevelCritical() [L351] tmp = isMethaneLevelCritical() [L353] COND FALSE !(\read(tmp)) [L184] RET __utac_acc__Specification1_spec__1() [L332] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:14:50,298 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)