./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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_product16.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 4fdaba9a943be1a84417ec0186b85075ad2a6a54eeb9563391984670e62b2cee --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:26:19,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:26:19,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:26:19,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:26:19,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:26:19,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:26:19,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:26:19,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:26:19,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:26:19,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:26:19,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:26:19,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:26:19,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:26:19,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:26:19,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:26:19,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:26:19,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:26:19,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:26:19,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:26:19,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:26:19,732 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:26:19,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:26:19,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:26:19,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:26:19,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:26:19,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:26:19,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:26:19,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:26:19,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:26:19,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:26:19,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:26:19,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:26:19,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:26:19,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:26:19,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:26:19,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:26:19,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:26:19,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:26:19,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:26:19,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:26:19,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:26:19,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:26:19,748 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:26:19,768 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:26:19,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:26:19,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:26:19,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:26:19,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:26:19,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:26:19,771 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:26:19,771 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:26:19,771 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:26:19,772 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:26:19,772 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:26:19,772 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:26:19,773 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:26:19,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:26:19,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:26:19,773 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:26:19,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:26:19,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:26:19,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:26:19,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:26:19,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:26:19,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:26:19,775 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:26:19,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:26:19,776 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:26:19,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:26:19,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:26:19,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:26:19,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:26:19,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:26:19,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:26:19,778 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:26:19,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fdaba9a943be1a84417ec0186b85075ad2a6a54eeb9563391984670e62b2cee [2022-07-23 15:26:19,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:26:20,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:26:20,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:26:20,020 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:26:20,021 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:26:20,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2022-07-23 15:26:20,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96472f006/0b1883fed270418998f9fe98cc0dc4bf/FLAGbf7e1b533 [2022-07-23 15:26:20,565 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:26:20,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2022-07-23 15:26:20,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96472f006/0b1883fed270418998f9fe98cc0dc4bf/FLAGbf7e1b533 [2022-07-23 15:26:20,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96472f006/0b1883fed270418998f9fe98cc0dc4bf [2022-07-23 15:26:20,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:26:20,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:26:20,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:20,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:26:20,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:26:20,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:20" (1/1) ... [2022-07-23 15:26:20,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67afc066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:20, skipping insertion in model container [2022-07-23 15:26:20,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:26:20" (1/1) ... [2022-07-23 15:26:20,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:26:20,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:26:21,090 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_product16.cil.c[1605,1618] [2022-07-23 15:26:21,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:21,223 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:26:21,245 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_product16.cil.c[1605,1618] [2022-07-23 15:26:21,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:26:21,353 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:26:21,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21 WrapperNode [2022-07-23 15:26:21,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:26:21,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:21,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:26:21,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:26:21,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,425 INFO L137 Inliner]: procedures = 53, calls = 154, calls flagged for inlining = 51, calls inlined = 53, statements flattened = 402 [2022-07-23 15:26:21,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:26:21,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:26:21,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:26:21,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:26:21,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:26:21,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:26:21,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:26:21,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:26:21,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (1/1) ... [2022-07-23 15:26:21,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:26:21,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:26:21,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:26:21,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 15:26:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:26:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:26:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:26:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:26:21,615 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:26:21,616 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:26:21,924 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:26:21,930 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:26:21,930 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:26:21,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:21 BoogieIcfgContainer [2022-07-23 15:26:21,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:26:21,933 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:26:21,934 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:26:21,936 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:26:21,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:21,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:26:20" (1/3) ... [2022-07-23 15:26:21,938 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bca6286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:21, skipping insertion in model container [2022-07-23 15:26:21,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:21,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:26:21" (2/3) ... [2022-07-23 15:26:21,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bca6286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:26:21, skipping insertion in model container [2022-07-23 15:26:21,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:26:21,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:21" (3/3) ... [2022-07-23 15:26:21,941 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2022-07-23 15:26:21,990 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:26:21,990 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:26:21,990 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:26:21,990 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:26:21,990 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:26:21,990 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:26:21,990 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:26:21,991 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:26:21,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:22,012 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-07-23 15:26:22,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:22,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:22,019 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:22,019 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:22,020 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:26:22,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:22,027 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-07-23 15:26:22,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:22,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:22,028 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:22,028 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:22,034 INFO L752 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 30#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 43#L802true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 7#L795true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 6#L810true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 75#L149true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 41#L122true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 16#L541-2true [2022-07-23 15:26:22,035 INFO L754 eck$LassoCheckResult]: Loop: 16#L541-2true assume !false; 8#L542true assume test_~splverifierCounter~0#1 < 4; 40#L543true test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 24#L551true assume !(0 != test_~tmp~4#1); 106#L551-2true test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 57#L561true assume !(0 != test_~tmp___0~0#1); 29#L561-2true test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 99#L571true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 11#L579true assume !(0 != test_~tmp___1~0#1); 35#L579-2true assume { :begin_inline_timeShift } true; 28#L614true assume !(0 != ~pumpRunning~0); 31#L614-2true assume !(0 != ~systemActive~0); 78#L621-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 108#L859-1true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 98#L905true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 88#L911-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 61#L631true assume { :end_inline_timeShift } true; 16#L541-2true [2022-07-23 15:26:22,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:22,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-23 15:26:22,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:22,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540968544] [2022-07-23 15:26:22,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:22,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:22,151 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:22,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:22,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:22,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1173736865, now seen corresponding path program 1 times [2022-07-23 15:26:22,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:22,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519485129] [2022-07-23 15:26:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:22,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:22,221 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:22,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:22,241 INFO L85 PathProgramCache]: Analyzing trace with hash 242055261, now seen corresponding path program 1 times [2022-07-23 15:26:22,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:22,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112577779] [2022-07-23 15:26:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:22,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:22,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:22,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112577779] [2022-07-23 15:26:22,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112577779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:22,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:22,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 15:26:22,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847123396] [2022-07-23 15:26:22,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:22,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:22,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 15:26:22,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 15:26:22,635 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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) [2022-07-23 15:26:22,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:22,758 INFO L93 Difference]: Finished difference Result 366 states and 467 transitions. [2022-07-23 15:26:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 15:26:22,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 366 states and 467 transitions. [2022-07-23 15:26:22,772 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 236 [2022-07-23 15:26:22,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 366 states to 326 states and 427 transitions. [2022-07-23 15:26:22,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2022-07-23 15:26:22,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2022-07-23 15:26:22,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 427 transitions. [2022-07-23 15:26:22,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:22,782 INFO L369 hiAutomatonCegarLoop]: Abstraction has 326 states and 427 transitions. [2022-07-23 15:26:22,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 427 transitions. [2022-07-23 15:26:22,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 152. [2022-07-23 15:26:22,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.3157894736842106) internal successors, (200), 151 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:22,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 200 transitions. [2022-07-23 15:26:22,838 INFO L392 hiAutomatonCegarLoop]: Abstraction has 152 states and 200 transitions. [2022-07-23 15:26:22,839 INFO L374 stractBuchiCegarLoop]: Abstraction has 152 states and 200 transitions. [2022-07-23 15:26:22,839 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:26:22,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 200 transitions. [2022-07-23 15:26:22,841 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 109 [2022-07-23 15:26:22,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:22,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:22,841 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:22,841 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:22,842 INFO L752 eck$LassoCheckResult]: Stem: 580#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 573#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 574#L802 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 508#L795 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 503#L810 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 504#L149 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 548#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 510#L541-2 [2022-07-23 15:26:22,842 INFO L754 eck$LassoCheckResult]: Loop: 510#L541-2 assume !false; 511#L542 assume test_~splverifierCounter~0#1 < 4; 512#L543 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 557#L551 assume !(0 != test_~tmp~4#1); 559#L551-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 498#L561 assume !(0 != test_~tmp___0~0#1); 500#L561-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 572#L571 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 521#L579 assume !(0 != test_~tmp___1~0#1); 522#L579-2 assume { :begin_inline_timeShift } true; 570#L614 assume !(0 != ~pumpRunning~0); 571#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 538#L646 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 540#L638-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 534#L646-1 assume { :end_inline_processEnvironment } true; 550#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 560#L859-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 581#L905 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 547#L911-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 509#L631 assume { :end_inline_timeShift } true; 510#L541-2 [2022-07-23 15:26:22,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:22,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-23 15:26:22,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:22,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281369648] [2022-07-23 15:26:22,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:22,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:22,862 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:22,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:22,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1267798985, now seen corresponding path program 1 times [2022-07-23 15:26:22,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:22,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504746359] [2022-07-23 15:26:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:22,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:22,884 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:22,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:22,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:22,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1379170299, now seen corresponding path program 1 times [2022-07-23 15:26:22,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:22,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419705943] [2022-07-23 15:26:22,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:22,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:26:22,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:26:22,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 15:26:22,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419705943] [2022-07-23 15:26:22,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419705943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 15:26:22,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 15:26:22,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 15:26:22,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740619081] [2022-07-23 15:26:22,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 15:26:23,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 15:26:23,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 15:26:23,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 15:26:23,080 INFO L87 Difference]: Start difference. First operand 152 states and 200 transitions. cyclomatic complexity: 51 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:23,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 15:26:23,224 INFO L93 Difference]: Finished difference Result 520 states and 686 transitions. [2022-07-23 15:26:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 15:26:23,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 520 states and 686 transitions. [2022-07-23 15:26:23,232 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 392 [2022-07-23 15:26:23,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 520 states to 520 states and 686 transitions. [2022-07-23 15:26:23,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 520 [2022-07-23 15:26:23,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 520 [2022-07-23 15:26:23,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 520 states and 686 transitions. [2022-07-23 15:26:23,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:26:23,243 INFO L369 hiAutomatonCegarLoop]: Abstraction has 520 states and 686 transitions. [2022-07-23 15:26:23,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states and 686 transitions. [2022-07-23 15:26:23,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 297. [2022-07-23 15:26:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2962962962962963) internal successors, (385), 296 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:26:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 385 transitions. [2022-07-23 15:26:23,269 INFO L392 hiAutomatonCegarLoop]: Abstraction has 297 states and 385 transitions. [2022-07-23 15:26:23,269 INFO L374 stractBuchiCegarLoop]: Abstraction has 297 states and 385 transitions. [2022-07-23 15:26:23,269 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 15:26:23,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 385 transitions. [2022-07-23 15:26:23,271 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 218 [2022-07-23 15:26:23,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:26:23,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:26:23,273 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:23,273 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 15:26:23,274 INFO L752 eck$LassoCheckResult]: Stem: 1294#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1276#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1277#L802 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1197#L795 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 1192#L810 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1193#L149 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1238#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1199#L541-2 [2022-07-23 15:26:23,274 INFO L754 eck$LassoCheckResult]: Loop: 1199#L541-2 assume !false; 1202#L542 assume test_~splverifierCounter~0#1 < 4; 1203#L543 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1477#L551 assume !(0 != test_~tmp~4#1); 1476#L551-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1473#L561 assume !(0 != test_~tmp___0~0#1); 1471#L561-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1470#L571 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1448#L776 assume { :end_inline_startSystem } true; 1211#L579-2 assume { :begin_inline_timeShift } true; 1466#L614 assume !(0 != ~pumpRunning~0); 1464#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1434#L646 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 1287#L638-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1223#L646-1 assume { :end_inline_processEnvironment } true; 1240#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1253#L859-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1295#L905 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1195#L891 __utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~1#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1196#L911 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1#1); 1237#L911-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1198#L631 assume { :end_inline_timeShift } true; 1199#L541-2 [2022-07-23 15:26:23,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:23,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-23 15:26:23,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:23,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107752211] [2022-07-23 15:26:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:23,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,309 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:23,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:23,334 INFO L85 PathProgramCache]: Analyzing trace with hash 192019704, now seen corresponding path program 1 times [2022-07-23 15:26:23,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:23,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124197712] [2022-07-23 15:26:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:23,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,342 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:23,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:26:23,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1308862396, now seen corresponding path program 1 times [2022-07-23 15:26:23,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:26:23,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108697573] [2022-07-23 15:26:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:26:23,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:26:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,379 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:26:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:26:23,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:26:26,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:26:26 BoogieIcfgContainer [2022-07-23 15:26:26,102 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:26:26,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:26:26,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:26:26,103 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:26:26,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:26:21" (3/4) ... [2022-07-23 15:26:26,106 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:26:26,159 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:26:26,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:26:26,160 INFO L158 Benchmark]: Toolchain (without parser) took 5252.40ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 65.6MB in the beginning and 43.3MB in the end (delta: 22.2MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,160 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:26:26,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.07ms. Allocated memory is still 102.8MB. Free memory was 65.3MB in the beginning and 80.7MB in the end (delta: -15.4MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.95ms. Allocated memory is still 102.8MB. Free memory was 80.7MB in the beginning and 77.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,161 INFO L158 Benchmark]: Boogie Preprocessor took 25.97ms. Allocated memory is still 102.8MB. Free memory was 77.7MB in the beginning and 76.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,162 INFO L158 Benchmark]: RCFGBuilder took 479.53ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 58.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,162 INFO L158 Benchmark]: BuchiAutomizer took 4168.95ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 58.6MB in the beginning and 45.3MB in the end (delta: 13.2MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,162 INFO L158 Benchmark]: Witness Printer took 56.18ms. Allocated memory is still 127.9MB. Free memory was 45.3MB in the beginning and 43.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:26:26,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.07ms. Allocated memory is still 102.8MB. Free memory was 65.3MB in the beginning and 80.7MB in the end (delta: -15.4MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.95ms. Allocated memory is still 102.8MB. Free memory was 80.7MB in the beginning and 77.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.97ms. Allocated memory is still 102.8MB. Free memory was 77.7MB in the beginning and 76.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.53ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 58.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 4168.95ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 58.6MB in the beginning and 45.3MB in the end (delta: 13.2MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. * Witness Printer took 56.18ms. Allocated memory is still 127.9MB. Free memory was 45.3MB in the beginning and 43.3MB in the end (delta: 2.0MB). 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 297 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.1s. 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, 397 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1139 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1139 mSDsluCounter, 1659 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1359 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 300 mSDtfsCounter, 131 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 541]: 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@2f8c8343=29, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3baea02a=0, NULL=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@177f9283=0, tmp___0=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, tmp___0=1, \result=0, retValue_acc=1, \result=1, tmp=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7914f59a=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60cf3aaf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b505e64=0, tmp=1, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49fccdee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fa804d5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ba8fbe7=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 541]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int cleanupTimeShifts = 4; [L332] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; [L140] int retValue_acc ; [L141] int tmp ; [L145] FCALL select_helpers() [L146] FCALL select_features() [L147] CALL, EXPR valid_product() [L806] int retValue_acc ; [L809] retValue_acc = 1 [L810] return (retValue_acc); [L147] RET, EXPR valid_product() [L147] tmp = valid_product() [L149] COND TRUE \read(tmp) [L151] FCALL setup() [L152] CALL runTest() [L131] CALL test() [L532] int splverifierCounter ; [L533] int tmp ; [L534] int tmp___0 ; [L535] int tmp___1 ; [L536] int tmp___2 ; [L539] splverifierCounter = 0 Loop: [L541] COND TRUE 1 [L543] COND TRUE splverifierCounter < 4 [L549] tmp = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp)) [L559] tmp___0 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___0)) [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND TRUE \read(tmp___2) [L573] CALL startSystem() [L775] systemActive = 1 [L573] RET startSystem() [L588] CALL timeShift() [L614] COND FALSE !(\read(pumpRunning)) [L621] COND TRUE \read(systemActive) [L623] CALL processEnvironment() [L643] int tmp ; [L646] COND FALSE !(\read(pumpRunning)) [L661] FCALL processEnvironment__wrappee__methaneQuery() [L623] RET processEnvironment() [L629] CALL __utac_acc__Specification3_spec__1() [L897] int tmp ; [L898] int tmp___0 ; [L899] int tmp___1 ; [L903] CALL, EXPR isMethaneLevelCritical() [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L903] RET, EXPR isMethaneLevelCritical() [L903] tmp = isMethaneLevelCritical() [L905] COND FALSE !(\read(tmp)) [L909] CALL, EXPR getWaterLevel() [L887] int retValue_acc ; [L890] retValue_acc = waterLevel [L891] return (retValue_acc); [L909] RET, EXPR getWaterLevel() [L909] tmp___0 = getWaterLevel() [L911] COND FALSE !(tmp___0 == 2) [L629] RET __utac_acc__Specification3_spec__1() [L588] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:26:26,204 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)