./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product04.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 b22026a332ccca8082c7769c107f506d3ca596d9fcaedb9dc78c497ca0c585ab --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:40:23,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:40:23,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:40:23,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:40:23,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:40:23,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:40:23,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:40:23,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:40:23,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:40:23,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:40:23,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:40:23,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:40:23,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:40:23,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:40:23,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:40:23,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:40:23,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:40:23,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:40:23,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:40:23,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:40:23,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:40:23,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:40:23,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:40:23,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:40:23,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:40:23,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:40:23,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:40:23,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:40:23,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:40:23,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:40:23,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:40:23,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:40:23,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:40:23,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:40:23,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:40:23,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:40:23,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:40:23,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:40:23,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:40:23,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:40:23,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:40:23,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:40:23,737 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:40:23,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:40:23,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:40:23,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:40:23,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:40:23,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:40:23,741 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:40:23,741 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:40:23,741 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:40:23,741 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:40:23,742 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:40:23,742 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:40:23,743 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:40:23,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:40:23,743 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:40:23,743 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:40:23,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:40:23,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:40:23,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:40:23,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:40:23,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:40:23,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:40:23,744 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:40:23,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:40:23,750 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:40:23,750 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:40:23,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:40:23,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:40:23,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:40:23,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:40:23,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:40:23,752 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:40:23,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b22026a332ccca8082c7769c107f506d3ca596d9fcaedb9dc78c497ca0c585ab [2021-12-28 09:40:24,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:40:24,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:40:24,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:40:24,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:40:24,107 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:40:24,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2021-12-28 09:40:24,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06452c0e9/95e431fad745437884a146a5b287a6dc/FLAG889ebdcc4 [2021-12-28 09:40:24,683 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:40:24,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2021-12-28 09:40:24,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06452c0e9/95e431fad745437884a146a5b287a6dc/FLAG889ebdcc4 [2021-12-28 09:40:25,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06452c0e9/95e431fad745437884a146a5b287a6dc [2021-12-28 09:40:25,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:40:25,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:40:25,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:25,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:40:25,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:40:25,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc65417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25, skipping insertion in model container [2021-12-28 09:40:25,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:40:25,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:40:25,378 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_product04.cil.c[14184,14197] [2021-12-28 09:40:25,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:25,414 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:40:25,476 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_product04.cil.c[14184,14197] [2021-12-28 09:40:25,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:25,499 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:40:25,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25 WrapperNode [2021-12-28 09:40:25,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:25,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:25,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:40:25,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:40:25,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,559 INFO L137 Inliner]: procedures = 51, calls = 148, calls flagged for inlining = 45, calls inlined = 38, statements flattened = 321 [2021-12-28 09:40:25,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:25,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:40:25,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:40:25,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:40:25,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:40:25,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:40:25,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:40:25,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:40:25,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (1/1) ... [2021-12-28 09:40:25,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:40:25,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:40:25,649 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) [2021-12-28 09:40:25,679 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 [2021-12-28 09:40:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:40:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:40:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:40:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:40:25,784 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:40:25,785 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:40:26,033 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:40:26,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:40:26,046 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:40:26,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:26 BoogieIcfgContainer [2021-12-28 09:40:26,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:40:26,049 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:40:26,050 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:40:26,053 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:40:26,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:26,061 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:40:25" (1/3) ... [2021-12-28 09:40:26,062 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a928646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:26, skipping insertion in model container [2021-12-28 09:40:26,062 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:26,062 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:25" (2/3) ... [2021-12-28 09:40:26,063 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a928646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:26, skipping insertion in model container [2021-12-28 09:40:26,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:26,063 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:26" (3/3) ... [2021-12-28 09:40:26,064 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2021-12-28 09:40:26,106 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:40:26,106 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:40:26,106 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:40:26,106 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:40:26,107 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:40:26,107 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:40:26,107 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:40:26,107 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:40:26,118 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) [2021-12-28 09:40:26,150 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-12-28 09:40:26,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:26,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:26,156 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:26,156 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:26,157 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:40:26,157 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) [2021-12-28 09:40:26,167 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-12-28 09:40:26,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:26,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:26,168 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:26,168 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:26,171 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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 25#L527true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 51#L520true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 18#L535true main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 68#L625true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 71#L601true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 49#L827-2true [2021-12-28 09:40:26,172 INFO L793 eck$LassoCheckResult]: Loop: 49#L827-2true assume !false; 69#L828true assume test_~splverifierCounter~0#1 < 4; 9#L829true test_~tmp~5#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 62#L837true assume !(0 != test_~tmp~5#1); 73#L837-2true test_~tmp___0~1#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 46#L847true assume !(0 != test_~tmp___0~1#1); 78#L847-2true test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 37#L857true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 39#L865true assume !(0 != test_~tmp___1~1#1); 30#L865-2true assume { :begin_inline_timeShift } true; 19#L694true assume !(0 != ~pumpRunning~0); 86#L694-2true assume !(0 != ~systemActive~0); 20#L701-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 52#L99true __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 24#L658true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 41#L664-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 54#L711true assume { :end_inline_timeShift } true; 49#L827-2true [2021-12-28 09:40:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-28 09:40:26,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:26,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826714807] [2021-12-28 09:40:26,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:26,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:26,305 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:26,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:26,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:26,373 INFO L85 PathProgramCache]: Analyzing trace with hash 522900833, now seen corresponding path program 1 times [2021-12-28 09:40:26,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:26,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058007163] [2021-12-28 09:40:26,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:26,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:26,402 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:26,413 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:26,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:26,417 INFO L85 PathProgramCache]: Analyzing trace with hash -408780771, now seen corresponding path program 1 times [2021-12-28 09:40:26,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:26,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585201716] [2021-12-28 09:40:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:26,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:26,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:26,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585201716] [2021-12-28 09:40:26,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585201716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:26,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:26,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:40:26,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846009809] [2021-12-28 09:40:26,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:26,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:26,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:40:26,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:40:26,793 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 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-12-28 09:40:26,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:26,936 INFO L93 Difference]: Finished difference Result 303 states and 386 transitions. [2021-12-28 09:40:26,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:40:26,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 386 transitions. [2021-12-28 09:40:26,956 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2021-12-28 09:40:26,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 263 states and 346 transitions. [2021-12-28 09:40:26,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 263 [2021-12-28 09:40:26,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 263 [2021-12-28 09:40:26,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 346 transitions. [2021-12-28 09:40:26,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:26,975 INFO L681 BuchiCegarLoop]: Abstraction has 263 states and 346 transitions. [2021-12-28 09:40:26,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 346 transitions. [2021-12-28 09:40:27,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 131. [2021-12-28 09:40:27,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 131 states have (on average 1.3206106870229009) internal successors, (173), 130 states have internal predecessors, (173), 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) [2021-12-28 09:40:27,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 173 transitions. [2021-12-28 09:40:27,022 INFO L704 BuchiCegarLoop]: Abstraction has 131 states and 173 transitions. [2021-12-28 09:40:27,022 INFO L587 BuchiCegarLoop]: Abstraction has 131 states and 173 transitions. [2021-12-28 09:40:27,022 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:40:27,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 173 transitions. [2021-12-28 09:40:27,024 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 95 [2021-12-28 09:40:27,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:27,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:27,025 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:27,026 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:27,026 INFO L791 eck$LassoCheckResult]: Stem: 475#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 465#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 443#L527 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 444#L520 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 432#L535 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 433#L625 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 477#L601 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 466#L827-2 [2021-12-28 09:40:27,026 INFO L793 eck$LassoCheckResult]: Loop: 466#L827-2 assume !false; 467#L828 assume test_~splverifierCounter~0#1 < 4; 416#L829 test_~tmp~5#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 417#L837 assume !(0 != test_~tmp~5#1); 468#L837-2 test_~tmp___0~1#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 463#L847 assume !(0 != test_~tmp___0~1#1); 464#L847-2 test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 455#L857 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 456#L865 assume !(0 != test_~tmp___1~1#1); 450#L865-2 assume { :begin_inline_timeShift } true; 434#L694 assume !(0 != ~pumpRunning~0); 435#L694-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 439#L718 assume { :end_inline_processEnvironment } true; 437#L701-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 438#L99 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 440#L658 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 441#L664-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 459#L711 assume { :end_inline_timeShift } true; 466#L827-2 [2021-12-28 09:40:27,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:27,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-28 09:40:27,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:27,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896649086] [2021-12-28 09:40:27,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:27,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,071 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:27,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:27,095 INFO L85 PathProgramCache]: Analyzing trace with hash -341466795, now seen corresponding path program 1 times [2021-12-28 09:40:27,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:27,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894730641] [2021-12-28 09:40:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:27,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,102 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,108 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:27,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:27,108 INFO L85 PathProgramCache]: Analyzing trace with hash 841174553, now seen corresponding path program 1 times [2021-12-28 09:40:27,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:27,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535123122] [2021-12-28 09:40:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:27,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:27,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:27,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535123122] [2021-12-28 09:40:27,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535123122] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:27,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:27,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 09:40:27,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468376701] [2021-12-28 09:40:27,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:27,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:27,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 09:40:27,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 09:40:27,285 INFO L87 Difference]: Start difference. First operand 131 states and 173 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) [2021-12-28 09:40:27,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:27,369 INFO L93 Difference]: Finished difference Result 435 states and 577 transitions. [2021-12-28 09:40:27,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 09:40:27,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 435 states and 577 transitions. [2021-12-28 09:40:27,374 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 337 [2021-12-28 09:40:27,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 435 states to 435 states and 577 transitions. [2021-12-28 09:40:27,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 435 [2021-12-28 09:40:27,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 435 [2021-12-28 09:40:27,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 435 states and 577 transitions. [2021-12-28 09:40:27,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:27,379 INFO L681 BuchiCegarLoop]: Abstraction has 435 states and 577 transitions. [2021-12-28 09:40:27,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states and 577 transitions. [2021-12-28 09:40:27,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 255. [2021-12-28 09:40:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 255 states have (on average 1.2980392156862746) internal successors, (331), 254 states have internal predecessors, (331), 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) [2021-12-28 09:40:27,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 331 transitions. [2021-12-28 09:40:27,401 INFO L704 BuchiCegarLoop]: Abstraction has 255 states and 331 transitions. [2021-12-28 09:40:27,401 INFO L587 BuchiCegarLoop]: Abstraction has 255 states and 331 transitions. [2021-12-28 09:40:27,401 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:40:27,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 331 transitions. [2021-12-28 09:40:27,402 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 190 [2021-12-28 09:40:27,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:27,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:27,403 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:27,403 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] [2021-12-28 09:40:27,404 INFO L791 eck$LassoCheckResult]: Stem: 1072#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1055#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1028#L527 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1029#L520 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 1017#L535 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 1018#L625 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1074#L601 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_#t~nondet49#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1077#L827-2 [2021-12-28 09:40:27,404 INFO L793 eck$LassoCheckResult]: Loop: 1077#L827-2 assume !false; 1156#L828 assume test_~splverifierCounter~0#1 < 4; 1155#L829 test_~tmp~5#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 1153#L837 assume !(0 != test_~tmp~5#1); 1078#L837-2 test_~tmp___0~1#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 1053#L847 assume !(0 != test_~tmp___0~1#1); 1054#L847-2 test_~tmp___2~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1044#L857 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1045#L865 assume !(0 != test_~tmp___1~1#1); 1036#L865-2 assume { :begin_inline_timeShift } true; 1037#L694 assume !(0 != ~pumpRunning~0); 1098#L694-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 1025#L718 assume { :end_inline_processEnvironment } true; 1022#L701-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1023#L99 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 1026#L658 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1027#L131 __utac_acc__Specification3_spec__1_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret35#1;havoc __utac_acc__Specification3_spec__1_#t~ret35#1; 1063#L664 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 1158#L664-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1157#L711 assume { :end_inline_timeShift } true; 1077#L827-2 [2021-12-28 09:40:27,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-28 09:40:27,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:27,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726571285] [2021-12-28 09:40:27,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:27,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,413 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:27,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:27,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1730824696, now seen corresponding path program 1 times [2021-12-28 09:40:27,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:27,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259528197] [2021-12-28 09:40:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:27,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,437 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,449 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:27,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:27,451 INFO L85 PathProgramCache]: Analyzing trace with hash 916144588, now seen corresponding path program 1 times [2021-12-28 09:40:27,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:27,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225309628] [2021-12-28 09:40:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:27,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,471 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:27,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:30,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:40:30 BoogieIcfgContainer [2021-12-28 09:40:30,375 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:40:30,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:40:30,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:40:30,376 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:40:30,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:26" (3/4) ... [2021-12-28 09:40:30,379 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:40:30,444 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:40:30,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:40:30,446 INFO L158 Benchmark]: Toolchain (without parser) took 5430.66ms. Allocated memory was 54.5MB in the beginning and 98.6MB in the end (delta: 44.0MB). Free memory was 31.2MB in the beginning and 39.9MB in the end (delta: -8.7MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:30,446 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:30,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.49ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.9MB in the beginning and 43.0MB in the end (delta: -12.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-12-28 09:40:30,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.06ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 40.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:30,447 INFO L158 Benchmark]: Boogie Preprocessor took 52.67ms. Allocated memory is still 67.1MB. Free memory was 40.3MB in the beginning and 38.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:30,448 INFO L158 Benchmark]: RCFGBuilder took 434.59ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 37.9MB in the end (delta: 749.9kB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:30,448 INFO L158 Benchmark]: BuchiAutomizer took 4325.94ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 37.9MB in the beginning and 42.0MB in the end (delta: -4.2MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:30,449 INFO L158 Benchmark]: Witness Printer took 69.25ms. Allocated memory is still 98.6MB. Free memory was 42.0MB in the beginning and 39.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:30,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.49ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.9MB in the beginning and 43.0MB in the end (delta: -12.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.06ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 40.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.67ms. Allocated memory is still 67.1MB. Free memory was 40.3MB in the beginning and 38.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.59ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 37.9MB in the end (delta: 749.9kB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4325.94ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 37.9MB in the beginning and 42.0MB in the end (delta: -4.2MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Witness Printer took 69.25ms. Allocated memory is still 98.6MB. Free memory was 42.0MB in the beginning and 39.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 312 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 255 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 876 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 876 mSDsluCounter, 1341 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1105 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 236 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 827]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b589618=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, methaneLevelCritical=0, tmp___0=1, retValue_acc=1, \result=0, tmp=0, retValue_acc=0, \result=1, retValue_acc=0, tmp___1=0, tmp___2=0, tmp=1, cleanupTimeShifts=4, \result=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d30421e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d34eb16=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78b9c1f9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cbf530a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ec98371=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ee0211e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6051544c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 827]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L305] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L540] int cleanupTimeShifts = 4; [L687] int pumpRunning = 0; [L688] int systemActive = 1; [L616] int retValue_acc ; [L617] int tmp ; [L621] FCALL select_helpers() [L622] FCALL select_features() [L623] CALL, EXPR valid_product() [L531] int retValue_acc ; [L534] retValue_acc = 1 [L535] return (retValue_acc); [L623] RET, EXPR valid_product() [L623] tmp = valid_product() [L625] COND TRUE \read(tmp) [L627] FCALL setup() [L628] CALL runTest() [L610] CALL test() [L818] int splverifierCounter ; [L819] int tmp ; [L820] int tmp___0 ; [L821] int tmp___1 ; [L822] int tmp___2 ; [L825] splverifierCounter = 0 Loop: [L827] COND TRUE 1 [L829] COND TRUE splverifierCounter < 4 [L835] tmp = __VERIFIER_nondet_int() [L837] COND FALSE !(\read(tmp)) [L845] tmp___0 = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp___0)) [L855] tmp___2 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___2)) [L863] tmp___1 = __VERIFIER_nondet_int() [L865] COND FALSE !(\read(tmp___1)) [L874] CALL timeShift() [L694] COND FALSE !(\read(pumpRunning)) [L701] COND TRUE \read(systemActive) [L703] FCALL processEnvironment() [L709] CALL __utac_acc__Specification3_spec__1() [L650] int tmp ; [L651] int tmp___0 ; [L652] int tmp___1 ; [L656] CALL, EXPR isMethaneLevelCritical() [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); [L656] RET, EXPR isMethaneLevelCritical() [L656] tmp = isMethaneLevelCritical() [L658] COND FALSE !(\read(tmp)) [L662] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L662] RET, EXPR getWaterLevel() [L662] tmp___0 = getWaterLevel() [L664] COND FALSE !(tmp___0 == 2) [L709] RET __utac_acc__Specification3_spec__1() [L874] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:40:30,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)