./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product12.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 263a891a69e751217ac30b9b114998fc0120cc8bcbbdd67ab0f365106c54376d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:45,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:45,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:45,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:45,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:45,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:45,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:45,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:45,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:45,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:45,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:45,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:45,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:45,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:45,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:45,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:45,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:45,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:45,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:45,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:45,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:45,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:45,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:45,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:45,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:45,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:45,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:45,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:45,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:45,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:45,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:45,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:45,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:45,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:45,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:45,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:45,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:45,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:45,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:45,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:45,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:45,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:45,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:45,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:45,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:45,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:45,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:45,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:45,633 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:45,633 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:45,634 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:45,634 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:45,634 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:45,635 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:45,635 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:45,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:45,635 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:45,636 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:45,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:45,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:45,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:45,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:45,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:45,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:45,637 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:45,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:45,637 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:45,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:45,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:45,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:45,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:45,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:45,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:45,639 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:45,639 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 263a891a69e751217ac30b9b114998fc0120cc8bcbbdd67ab0f365106c54376d [2022-02-21 04:16:45,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:45,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:45,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:45,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:45,925 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:45,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2022-02-21 04:16:45,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f9a792b/f729d3fc197d4490886f41ebf4153d11/FLAG6f3406cc5 [2022-02-21 04:16:46,389 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:46,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2022-02-21 04:16:46,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f9a792b/f729d3fc197d4490886f41ebf4153d11/FLAG6f3406cc5 [2022-02-21 04:16:46,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61f9a792b/f729d3fc197d4490886f41ebf4153d11 [2022-02-21 04:16:46,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:46,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:46,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:46,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:46,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:46,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c6ed98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46, skipping insertion in model container [2022-02-21 04:16:46,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:46,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:46,787 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17359,17372] [2022-02-21 04:16:46,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:46,797 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:46,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17359,17372] [2022-02-21 04:16:46,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:46,885 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:46,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46 WrapperNode [2022-02-21 04:16:46,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:46,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:46,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:46,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:46,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,963 INFO L137 Inliner]: procedures = 52, calls = 150, calls flagged for inlining = 47, calls inlined = 38, statements flattened = 321 [2022-02-21 04:16:46,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:46,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:46,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:46,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:46,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:46,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:47,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:47,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:47,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:47,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:47,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:47,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:47,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (1/1) ... [2022-02-21 04:16:47,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:47,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:47,065 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 04:16:47,084 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 04:16:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:47,164 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:47,165 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:47,418 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:47,424 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:47,424 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:47,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:47 BoogieIcfgContainer [2022-02-21 04:16:47,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:47,427 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:47,427 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:47,435 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:47,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:47,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:46" (1/3) ... [2022-02-21 04:16:47,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d497b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:47, skipping insertion in model container [2022-02-21 04:16:47,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:47,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:46" (2/3) ... [2022-02-21 04:16:47,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d497b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:47, skipping insertion in model container [2022-02-21 04:16:47,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:47,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:47" (3/3) ... [2022-02-21 04:16:47,439 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2022-02-21 04:16:47,506 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:47,506 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:47,506 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:47,506 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:47,506 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:47,506 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:47,506 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:47,506 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:47,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 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 04:16:47,555 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2022-02-21 04:16:47,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:47,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:47,570 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:47,570 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 04:16:47,570 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:47,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 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 04:16:47,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2022-02-21 04:16:47,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:47,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:47,590 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:47,592 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 04:16:47,603 INFO L791 eck$LassoCheckResult]: Stem: 66#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 55#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 39#L421true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 73#L414true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 20#L429true main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 54#L882true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 60#L859true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 85#L104-2true [2022-02-21 04:16:47,604 INFO L793 eck$LassoCheckResult]: Loop: 85#L104-2true assume !false; 25#L105true assume test_~splverifierCounter~0#1 < 4; 62#L106true test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 70#L114true assume !(0 != test_~tmp~1#1); 56#L114-2true test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 19#L124true assume !(0 != test_~tmp___0~1#1); 81#L124-2true test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 71#L134true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 77#L312true assume { :end_inline_startSystem } true; 36#L142-2true assume { :begin_inline_timeShift } true; 7#L175true assume !(0 != ~pumpRunning~0); 11#L175-2true assume !(0 != ~systemActive~0); 86#L182-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 33#L359true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 8#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 76#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 35#L192true assume { :end_inline_timeShift } true; 85#L104-2true [2022-02-21 04:16:47,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:47,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:47,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:47,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130367960] [2022-02-21 04:16:47,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:47,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:47,827 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:47,887 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:47,895 INFO L85 PathProgramCache]: Analyzing trace with hash -516603181, now seen corresponding path program 1 times [2022-02-21 04:16:47,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:47,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439271895] [2022-02-21 04:16:47,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:47,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:47,981 INFO L290 TraceCheckUtils]: 0: Hoare triple {92#true} assume !false; {92#true} is VALID [2022-02-21 04:16:47,986 INFO L290 TraceCheckUtils]: 1: Hoare triple {92#true} assume test_~splverifierCounter~0#1 < 4; {92#true} is VALID [2022-02-21 04:16:47,987 INFO L290 TraceCheckUtils]: 2: Hoare triple {92#true} test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {92#true} is VALID [2022-02-21 04:16:47,987 INFO L290 TraceCheckUtils]: 3: Hoare triple {92#true} assume !(0 != test_~tmp~1#1); {92#true} is VALID [2022-02-21 04:16:47,987 INFO L290 TraceCheckUtils]: 4: Hoare triple {92#true} test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {92#true} is VALID [2022-02-21 04:16:47,987 INFO L290 TraceCheckUtils]: 5: Hoare triple {92#true} assume !(0 != test_~tmp___0~1#1); {92#true} is VALID [2022-02-21 04:16:47,988 INFO L290 TraceCheckUtils]: 6: Hoare triple {92#true} test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {92#true} is VALID [2022-02-21 04:16:47,989 INFO L290 TraceCheckUtils]: 7: Hoare triple {92#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:47,990 INFO L290 TraceCheckUtils]: 8: Hoare triple {94#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:47,991 INFO L290 TraceCheckUtils]: 9: Hoare triple {94#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:47,991 INFO L290 TraceCheckUtils]: 10: Hoare triple {94#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:47,992 INFO L290 TraceCheckUtils]: 11: Hoare triple {94#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {93#false} is VALID [2022-02-21 04:16:47,992 INFO L290 TraceCheckUtils]: 12: Hoare triple {93#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {93#false} is VALID [2022-02-21 04:16:47,992 INFO L290 TraceCheckUtils]: 13: Hoare triple {93#false} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {93#false} is VALID [2022-02-21 04:16:47,993 INFO L290 TraceCheckUtils]: 14: Hoare triple {93#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {93#false} is VALID [2022-02-21 04:16:47,993 INFO L290 TraceCheckUtils]: 15: Hoare triple {93#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {93#false} is VALID [2022-02-21 04:16:47,993 INFO L290 TraceCheckUtils]: 16: Hoare triple {93#false} assume { :end_inline_timeShift } true; {93#false} is VALID [2022-02-21 04:16:47,994 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 04:16:47,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:47,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439271895] [2022-02-21 04:16:47,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439271895] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:47,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:47,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:47,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775999459] [2022-02-21 04:16:47,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:48,003 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:48,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:48,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:48,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:48,032 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 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 04:16:48,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:48,246 INFO L93 Difference]: Finished difference Result 157 states and 201 transitions. [2022-02-21 04:16:48,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:48,248 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 04:16:48,267 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 04:16:48,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 201 transitions. [2022-02-21 04:16:48,294 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2022-02-21 04:16:48,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 137 states and 180 transitions. [2022-02-21 04:16:48,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2022-02-21 04:16:48,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 137 [2022-02-21 04:16:48,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 180 transitions. [2022-02-21 04:16:48,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:48,312 INFO L681 BuchiCegarLoop]: Abstraction has 137 states and 180 transitions. [2022-02-21 04:16:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 180 transitions. [2022-02-21 04:16:48,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2022-02-21 04:16:48,344 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:48,346 INFO L82 GeneralOperation]: Start isEquivalent. First operand 137 states and 180 transitions. Second operand has 134 states, 134 states have (on average 1.3134328358208955) internal successors, (176), 133 states have internal predecessors, (176), 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 04:16:48,347 INFO L74 IsIncluded]: Start isIncluded. First operand 137 states and 180 transitions. Second operand has 134 states, 134 states have (on average 1.3134328358208955) internal successors, (176), 133 states have internal predecessors, (176), 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 04:16:48,348 INFO L87 Difference]: Start difference. First operand 137 states and 180 transitions. Second operand has 134 states, 134 states have (on average 1.3134328358208955) internal successors, (176), 133 states have internal predecessors, (176), 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 04:16:48,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:48,354 INFO L93 Difference]: Finished difference Result 137 states and 180 transitions. [2022-02-21 04:16:48,354 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 180 transitions. [2022-02-21 04:16:48,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:48,356 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:48,357 INFO L74 IsIncluded]: Start isIncluded. First operand has 134 states, 134 states have (on average 1.3134328358208955) internal successors, (176), 133 states have internal predecessors, (176), 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 137 states and 180 transitions. [2022-02-21 04:16:48,361 INFO L87 Difference]: Start difference. First operand has 134 states, 134 states have (on average 1.3134328358208955) internal successors, (176), 133 states have internal predecessors, (176), 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 137 states and 180 transitions. [2022-02-21 04:16:48,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:48,373 INFO L93 Difference]: Finished difference Result 137 states and 180 transitions. [2022-02-21 04:16:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 180 transitions. [2022-02-21 04:16:48,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:48,374 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:48,374 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:48,374 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 134 states have (on average 1.3134328358208955) internal successors, (176), 133 states have internal predecessors, (176), 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 04:16:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 176 transitions. [2022-02-21 04:16:48,382 INFO L704 BuchiCegarLoop]: Abstraction has 134 states and 176 transitions. [2022-02-21 04:16:48,382 INFO L587 BuchiCegarLoop]: Abstraction has 134 states and 176 transitions. [2022-02-21 04:16:48,382 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:48,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 176 transitions. [2022-02-21 04:16:48,384 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 97 [2022-02-21 04:16:48,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:48,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:48,386 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:48,387 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 04:16:48,387 INFO L791 eck$LassoCheckResult]: Stem: 332#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 324#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 303#L421 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 304#L414 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 277#L429 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 278#L882 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 323#L859 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 299#L104-2 [2022-02-21 04:16:48,388 INFO L793 eck$LassoCheckResult]: Loop: 299#L104-2 assume !false; 286#L105 assume test_~splverifierCounter~0#1 < 4; 287#L106 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 330#L114 assume !(0 != test_~tmp~1#1); 325#L114-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 275#L124 assume !(0 != test_~tmp___0~1#1); 273#L124-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 335#L134 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 336#L312 assume { :end_inline_startSystem } true; 300#L142-2 assume { :begin_inline_timeShift } true; 258#L175 assume !(0 != ~pumpRunning~0); 259#L175-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 265#L199 assume { :end_inline_processEnvironment } true; 331#L182-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 344#L359 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 261#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 262#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 298#L192 assume { :end_inline_timeShift } true; 299#L104-2 [2022-02-21 04:16:48,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:48,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921323518] [2022-02-21 04:16:48,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,420 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,444 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1793647139, now seen corresponding path program 1 times [2022-02-21 04:16:48,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976193207] [2022-02-21 04:16:48,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,454 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,466 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:48,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1318678809, now seen corresponding path program 1 times [2022-02-21 04:16:48,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555553209] [2022-02-21 04:16:48,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:48,592 INFO L290 TraceCheckUtils]: 0: Hoare triple {667#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,593 INFO L290 TraceCheckUtils]: 1: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,593 INFO L290 TraceCheckUtils]: 2: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,594 INFO L290 TraceCheckUtils]: 3: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,596 INFO L290 TraceCheckUtils]: 4: Hoare triple {669#(= ~methaneLevelCritical~0 0)} main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,596 INFO L290 TraceCheckUtils]: 5: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,597 INFO L290 TraceCheckUtils]: 6: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,597 INFO L290 TraceCheckUtils]: 7: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume !false; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,598 INFO L290 TraceCheckUtils]: 8: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,598 INFO L290 TraceCheckUtils]: 9: Hoare triple {669#(= ~methaneLevelCritical~0 0)} test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,599 INFO L290 TraceCheckUtils]: 10: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~1#1); {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,600 INFO L290 TraceCheckUtils]: 11: Hoare triple {669#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,600 INFO L290 TraceCheckUtils]: 12: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,600 INFO L290 TraceCheckUtils]: 13: Hoare triple {669#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,601 INFO L290 TraceCheckUtils]: 14: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,601 INFO L290 TraceCheckUtils]: 15: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume { :end_inline_startSystem } true; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,602 INFO L290 TraceCheckUtils]: 16: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,602 INFO L290 TraceCheckUtils]: 17: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,603 INFO L290 TraceCheckUtils]: 18: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,604 INFO L290 TraceCheckUtils]: 19: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {669#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,605 INFO L290 TraceCheckUtils]: 20: Hoare triple {669#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {670#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:48,606 INFO L290 TraceCheckUtils]: 21: Hoare triple {670#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; {671#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} is VALID [2022-02-21 04:16:48,606 INFO L290 TraceCheckUtils]: 22: Hoare triple {671#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~0#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; {668#false} is VALID [2022-02-21 04:16:48,606 INFO L290 TraceCheckUtils]: 23: Hoare triple {668#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {668#false} is VALID [2022-02-21 04:16:48,607 INFO L290 TraceCheckUtils]: 24: Hoare triple {668#false} assume { :end_inline_timeShift } true; {668#false} is VALID [2022-02-21 04:16:48,608 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 04:16:48,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:48,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555553209] [2022-02-21 04:16:48,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555553209] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:48,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:48,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:48,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155847270] [2022-02-21 04:16:48,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:48,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:48,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:48,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:48,779 INFO L87 Difference]: Start difference. First operand 134 states and 176 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 04:16:49,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,308 INFO L93 Difference]: Finished difference Result 447 states and 589 transitions. [2022-02-21 04:16:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:49,308 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 04:16:49,332 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:49,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 447 states and 589 transitions. [2022-02-21 04:16:49,358 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 346 [2022-02-21 04:16:49,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 447 states to 447 states and 589 transitions. [2022-02-21 04:16:49,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 447 [2022-02-21 04:16:49,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 447 [2022-02-21 04:16:49,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 447 states and 589 transitions. [2022-02-21 04:16:49,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:49,380 INFO L681 BuchiCegarLoop]: Abstraction has 447 states and 589 transitions. [2022-02-21 04:16:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states and 589 transitions. [2022-02-21 04:16:49,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 261. [2022-02-21 04:16:49,394 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:49,395 INFO L82 GeneralOperation]: Start isEquivalent. First operand 447 states and 589 transitions. Second operand has 261 states, 261 states have (on average 1.2911877394636015) internal successors, (337), 260 states have internal predecessors, (337), 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 04:16:49,396 INFO L74 IsIncluded]: Start isIncluded. First operand 447 states and 589 transitions. Second operand has 261 states, 261 states have (on average 1.2911877394636015) internal successors, (337), 260 states have internal predecessors, (337), 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 04:16:49,396 INFO L87 Difference]: Start difference. First operand 447 states and 589 transitions. Second operand has 261 states, 261 states have (on average 1.2911877394636015) internal successors, (337), 260 states have internal predecessors, (337), 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 04:16:49,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,433 INFO L93 Difference]: Finished difference Result 447 states and 589 transitions. [2022-02-21 04:16:49,434 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 589 transitions. [2022-02-21 04:16:49,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:49,436 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:49,437 INFO L74 IsIncluded]: Start isIncluded. First operand has 261 states, 261 states have (on average 1.2911877394636015) internal successors, (337), 260 states have internal predecessors, (337), 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 447 states and 589 transitions. [2022-02-21 04:16:49,438 INFO L87 Difference]: Start difference. First operand has 261 states, 261 states have (on average 1.2911877394636015) internal successors, (337), 260 states have internal predecessors, (337), 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 447 states and 589 transitions. [2022-02-21 04:16:49,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,451 INFO L93 Difference]: Finished difference Result 447 states and 589 transitions. [2022-02-21 04:16:49,452 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 589 transitions. [2022-02-21 04:16:49,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:49,453 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:49,453 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:49,453 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:49,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 261 states have (on average 1.2911877394636015) internal successors, (337), 260 states have internal predecessors, (337), 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 04:16:49,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 337 transitions. [2022-02-21 04:16:49,461 INFO L704 BuchiCegarLoop]: Abstraction has 261 states and 337 transitions. [2022-02-21 04:16:49,461 INFO L587 BuchiCegarLoop]: Abstraction has 261 states and 337 transitions. [2022-02-21 04:16:49,461 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:49,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 261 states and 337 transitions. [2022-02-21 04:16:49,462 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 194 [2022-02-21 04:16:49,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:49,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:49,463 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:49,464 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 04:16:49,464 INFO L791 eck$LassoCheckResult]: Stem: 1220#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1210#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1186#L421 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1187#L414 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1157#L429 main_#t~ret50#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 1158#L882 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1209#L859 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1182#L104-2 [2022-02-21 04:16:49,464 INFO L793 eck$LassoCheckResult]: Loop: 1182#L104-2 assume !false; 1165#L105 assume test_~splverifierCounter~0#1 < 4; 1166#L106 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1216#L114 assume !(0 != test_~tmp~1#1); 1211#L114-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1152#L124 assume !(0 != test_~tmp___0~1#1); 1154#L124-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1310#L134 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1225#L312 assume { :end_inline_startSystem } true; 1185#L142-2 assume { :begin_inline_timeShift } true; 1134#L175 assume !(0 != ~pumpRunning~0); 1135#L175-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 1140#L199 assume { :end_inline_processEnvironment } true; 1217#L182-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1232#L359 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1137#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 1138#L391 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 1159#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1160#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1181#L192 assume { :end_inline_timeShift } true; 1182#L104-2 [2022-02-21 04:16:49,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:49,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619889088] [2022-02-21 04:16:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,480 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,493 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:49,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1414265686, now seen corresponding path program 1 times [2022-02-21 04:16:49,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243257439] [2022-02-21 04:16:49,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,511 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,515 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,516 INFO L85 PathProgramCache]: Analyzing trace with hash -233732326, now seen corresponding path program 1 times [2022-02-21 04:16:49,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443276832] [2022-02-21 04:16:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,536 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,550 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:52,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:52 BoogieIcfgContainer [2022-02-21 04:16:52,362 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:52,362 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:52,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:52,363 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:52,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:47" (3/4) ... [2022-02-21 04:16:52,365 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:52,419 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:52,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:52,420 INFO L158 Benchmark]: Toolchain (without parser) took 6001.37ms. Allocated memory was 88.1MB in the beginning and 134.2MB in the end (delta: 46.1MB). Free memory was 50.2MB in the beginning and 37.2MB in the end (delta: 13.0MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2022-02-21 04:16:52,420 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:52,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.56ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 50.0MB in the beginning and 82.3MB in the end (delta: -32.3MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:52,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.22ms. Allocated memory is still 111.1MB. Free memory was 82.3MB in the beginning and 79.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:52,422 INFO L158 Benchmark]: Boogie Preprocessor took 54.02ms. Allocated memory is still 111.1MB. Free memory was 79.3MB in the beginning and 77.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:52,422 INFO L158 Benchmark]: RCFGBuilder took 404.06ms. Allocated memory is still 111.1MB. Free memory was 77.7MB in the beginning and 60.0MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:52,422 INFO L158 Benchmark]: BuchiAutomizer took 4935.09ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.6MB in the beginning and 40.4MB in the end (delta: 19.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:52,423 INFO L158 Benchmark]: Witness Printer took 56.69ms. Allocated memory is still 134.2MB. Free memory was 40.4MB in the beginning and 37.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:52,425 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 0.20ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.56ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 50.0MB in the beginning and 82.3MB in the end (delta: -32.3MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.22ms. Allocated memory is still 111.1MB. Free memory was 82.3MB in the beginning and 79.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.02ms. Allocated memory is still 111.1MB. Free memory was 79.3MB in the beginning and 77.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 404.06ms. Allocated memory is still 111.1MB. Free memory was 77.7MB in the beginning and 60.0MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 4935.09ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.6MB in the beginning and 40.4MB in the end (delta: 19.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 56.69ms. Allocated memory is still 134.2MB. Free memory was 40.4MB in the beginning and 37.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 261 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 189 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 261 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 423 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 423 mSDsluCounter, 734 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 495 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 239 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 104]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2562ed66=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@226daba=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f399575=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@414ec2d6=0, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=1, \result=1, retValue_acc=0, retValue_acc=0, tmp___1=0, tmp___2=29, tmp=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51d8f364=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@291959cd=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7238eb16=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66cca4f0=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 104]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L316] int waterLevel = 1; [L317] int methaneLevelCritical = 0; [L603] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L800] int cleanupTimeShifts = 4; [L873] int retValue_acc ; [L874] int tmp ; [L878] FCALL select_helpers() [L879] FCALL select_features() [L880] CALL, EXPR valid_product() [L425] int retValue_acc ; [L428] retValue_acc = 1 [L429] return (retValue_acc); [L880] RET, EXPR valid_product() [L880] tmp = valid_product() [L882] COND TRUE \read(tmp) [L884] FCALL setup() [L885] CALL runTest() [L867] CALL test() [L95] int splverifierCounter ; [L96] int tmp ; [L97] int tmp___0 ; [L98] int tmp___1 ; [L99] int tmp___2 ; [L102] splverifierCounter = 0 Loop: [L104] COND TRUE 1 [L106] COND TRUE splverifierCounter < 4 [L112] tmp = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp)) [L122] tmp___0 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___0)) [L132] tmp___2 = __VERIFIER_nondet_int() [L134] COND TRUE \read(tmp___2) [L136] CALL startSystem() [L311] systemActive = 1 [L136] RET startSystem() [L151] CALL timeShift() [L175] COND FALSE !(\read(pumpRunning)) [L182] COND TRUE \read(systemActive) [L184] FCALL processEnvironment() [L190] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L355] int retValue_acc ; [L358] retValue_acc = methaneLevelCritical [L359] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L387] int retValue_acc ; [L390] retValue_acc = waterLevel [L391] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L190] RET __utac_acc__Specification3_spec__1() [L151] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:52,478 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)