./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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_spec2_product44.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 471ad46a1662a2ee36763023473e29e175f1086d40bbf36d792af661871bf09e --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 04:17:28,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 04:17:28,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 04:17:28,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 04:17:28,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 04:17:28,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 04:17:28,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 04:17:28,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 04:17:28,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 04:17:28,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 04:17:28,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 04:17:28,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 04:17:28,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 04:17:28,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 04:17:28,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 04:17:28,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 04:17:28,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 04:17:28,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 04:17:28,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 04:17:28,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 04:17:28,688 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 04:17:28,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 04:17:28,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 04:17:28,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 04:17:28,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 04:17:28,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 04:17:28,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 04:17:28,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 04:17:28,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 04:17:28,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 04:17:28,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 04:17:28,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 04:17:28,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 04:17:28,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 04:17:28,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 04:17:28,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 04:17:28,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 04:17:28,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 04:17:28,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 04:17:28,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 04:17:28,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 04:17:28,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 04:17:28,704 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 04:17:28,740 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 04:17:28,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 04:17:28,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 04:17:28,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 04:17:28,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 04:17:28,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 04:17:28,741 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 04:17:28,741 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 04:17:28,741 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 04:17:28,742 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 04:17:28,742 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 04:17:28,742 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 04:17:28,742 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 04:17:28,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 04:17:28,742 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 04:17:28,742 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 04:17:28,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 04:17:28,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 04:17:28,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 04:17:28,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 04:17:28,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 04:17:28,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 04:17:28,743 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 04:17:28,743 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 04:17:28,743 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 04:17:28,743 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 04:17:28,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 04:17:28,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 04:17:28,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 04:17:28,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 04:17:28,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 04:17:28,745 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 04:17:28,745 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 471ad46a1662a2ee36763023473e29e175f1086d40bbf36d792af661871bf09e [2022-07-13 04:17:28,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 04:17:28,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 04:17:28,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 04:17:29,000 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 04:17:29,000 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 04:17:29,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2022-07-13 04:17:29,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0636a1a/0d5919b4bcbf49718405343daa518f9e/FLAGab94a9138 [2022-07-13 04:17:29,471 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 04:17:29,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2022-07-13 04:17:29,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0636a1a/0d5919b4bcbf49718405343daa518f9e/FLAGab94a9138 [2022-07-13 04:17:29,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0636a1a/0d5919b4bcbf49718405343daa518f9e [2022-07-13 04:17:29,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 04:17:29,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 04:17:29,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 04:17:29,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 04:17:29,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 04:17:29,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47af458c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29, skipping insertion in model container [2022-07-13 04:17:29,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 04:17:29,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 04:17:29,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c[1605,1618] [2022-07-13 04:17:29,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:17:29,800 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 04:17:29,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c[1605,1618] [2022-07-13 04:17:29,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:17:29,851 INFO L208 MainTranslator]: Completed translation [2022-07-13 04:17:29,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29 WrapperNode [2022-07-13 04:17:29,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 04:17:29,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 04:17:29,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 04:17:29,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 04:17:29,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,892 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 60, statements flattened = 478 [2022-07-13 04:17:29,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 04:17:29,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 04:17:29,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 04:17:29,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 04:17:29,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 04:17:29,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 04:17:29,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 04:17:29,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 04:17:29,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (1/1) ... [2022-07-13 04:17:29,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:17:29,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:17:29,986 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) [2022-07-13 04:17:30,002 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 [2022-07-13 04:17:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 04:17:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 04:17:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 04:17:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 04:17:30,079 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 04:17:30,080 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 04:17:30,293 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 04:17:30,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 04:17:30,298 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 04:17:30,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:17:30 BoogieIcfgContainer [2022-07-13 04:17:30,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 04:17:30,301 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 04:17:30,301 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 04:17:30,303 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 04:17:30,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:17:30,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 04:17:29" (1/3) ... [2022-07-13 04:17:30,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f78ba42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:17:30, skipping insertion in model container [2022-07-13 04:17:30,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:17:30,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:17:29" (2/3) ... [2022-07-13 04:17:30,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f78ba42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:17:30, skipping insertion in model container [2022-07-13 04:17:30,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:17:30,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:17:30" (3/3) ... [2022-07-13 04:17:30,306 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2022-07-13 04:17:30,342 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 04:17:30,343 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 04:17:30,343 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 04:17:30,343 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 04:17:30,343 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 04:17:30,343 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 04:17:30,343 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 04:17:30,343 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 04:17:30,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.376) internal successors, (172), 125 states have internal predecessors, (172), 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) [2022-07-13 04:17:30,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2022-07-13 04:17:30,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:17:30,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:17:30,375 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:17:30,375 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:17:30,376 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 04:17:30,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.376) internal successors, (172), 125 states have internal predecessors, (172), 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) [2022-07-13 04:17:30,389 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2022-07-13 04:17:30,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:17:30,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:17:30,404 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:17:30,404 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:17:30,408 INFO L752 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 42#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 69#L361true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 53#L354true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 38#L369true main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 100#L458true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 64#L433true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 124#L478true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 111#L75-2true [2022-07-13 04:17:30,409 INFO L754 eck$LassoCheckResult]: Loop: 111#L75-2true assume !false; 62#L76true assume test_~splverifierCounter~0#1 < 4; 73#L77true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 39#L85true assume !(0 != test_~tmp~0#1); 3#L85-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 87#L95true assume !(0 != test_~tmp___0~0#1); 93#L95-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 21#L105true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 104#L113true assume !(0 != test_~tmp___1~0#1); 49#L113-2true assume { :begin_inline_timeShift } true; 92#L150true assume !(0 != ~pumpRunning~0); 86#L150-2true assume !(0 != ~systemActive~0); 20#L157-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 35#L555-1true __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 109#L489true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 95#L489-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 23#L167true assume { :end_inline_timeShift } true; 111#L75-2true [2022-07-13 04:17:30,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:30,415 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-13 04:17:30,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:30,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064757089] [2022-07-13 04:17:30,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:30,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:30,541 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:17:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:30,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:17:30,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:30,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1332355177, now seen corresponding path program 1 times [2022-07-13 04:17:30,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:30,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763548209] [2022-07-13 04:17:30,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:30,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:30,633 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:17:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:30,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:17:30,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:30,646 INFO L85 PathProgramCache]: Analyzing trace with hash -2068296754, now seen corresponding path program 1 times [2022-07-13 04:17:30,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:30,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029714847] [2022-07-13 04:17:30,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:30,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:17:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:17:30,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:17:30,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029714847] [2022-07-13 04:17:30,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029714847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:17:30,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:17:30,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 04:17:30,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812178358] [2022-07-13 04:17:30,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:17:30,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:17:30,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 04:17:30,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 04:17:30,932 INFO L87 Difference]: Start difference. First operand has 126 states, 125 states have (on average 1.376) internal successors, (172), 125 states have internal predecessors, (172), 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 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:17:31,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:17:31,047 INFO L93 Difference]: Finished difference Result 418 states and 546 transitions. [2022-07-13 04:17:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 04:17:31,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 418 states and 546 transitions. [2022-07-13 04:17:31,067 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 270 [2022-07-13 04:17:31,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 418 states to 378 states and 506 transitions. [2022-07-13 04:17:31,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 378 [2022-07-13 04:17:31,082 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 378 [2022-07-13 04:17:31,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 378 states and 506 transitions. [2022-07-13 04:17:31,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:17:31,085 INFO L369 hiAutomatonCegarLoop]: Abstraction has 378 states and 506 transitions. [2022-07-13 04:17:31,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states and 506 transitions. [2022-07-13 04:17:31,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 168. [2022-07-13 04:17:31,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.3392857142857142) internal successors, (225), 167 states have internal predecessors, (225), 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) [2022-07-13 04:17:31,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 225 transitions. [2022-07-13 04:17:31,115 INFO L392 hiAutomatonCegarLoop]: Abstraction has 168 states and 225 transitions. [2022-07-13 04:17:31,115 INFO L374 stractBuchiCegarLoop]: Abstraction has 168 states and 225 transitions. [2022-07-13 04:17:31,115 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 04:17:31,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 225 transitions. [2022-07-13 04:17:31,117 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 119 [2022-07-13 04:17:31,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:17:31,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:17:31,123 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:17:31,123 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] [2022-07-13 04:17:31,123 INFO L752 eck$LassoCheckResult]: Stem: 673#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 628#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 629#L361 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 642#L354 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 624#L369 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 625#L458 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 651#L433 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 652#L478 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 604#L75-2 [2022-07-13 04:17:31,123 INFO L754 eck$LassoCheckResult]: Loop: 604#L75-2 assume !false; 648#L76 assume test_~splverifierCounter~0#1 < 4; 649#L77 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 626#L85 assume !(0 != test_~tmp~0#1); 562#L85-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 563#L95 assume !(0 != test_~tmp___0~0#1); 656#L95-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 598#L105 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 599#L332 assume { :end_inline_startSystem } true; 617#L113-2 assume { :begin_inline_timeShift } true; 637#L150 assume !(0 != ~pumpRunning~0); 662#L150-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 663#L182 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 665#L174-1 assume { :end_inline_processEnvironment__wrappee__base } true; 666#L182-1 assume { :end_inline_processEnvironment } true; 596#L157-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 597#L555-1 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 621#L489 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 587#L489-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 603#L167 assume { :end_inline_timeShift } true; 604#L75-2 [2022-07-13 04:17:31,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:31,124 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-13 04:17:31,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:31,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806598321] [2022-07-13 04:17:31,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:31,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,135 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:17:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:17:31,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:31,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2131543303, now seen corresponding path program 1 times [2022-07-13 04:17:31,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:31,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517222151] [2022-07-13 04:17:31,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:31,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:17:31,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:17:31,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:17:31,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517222151] [2022-07-13 04:17:31,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517222151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:17:31,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:17:31,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 04:17:31,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343698169] [2022-07-13 04:17:31,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:17:31,158 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 04:17:31,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:17:31,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 04:17:31,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 04:17:31,159 INFO L87 Difference]: Start difference. First operand 168 states and 225 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-07-13 04:17:31,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:17:31,198 INFO L93 Difference]: Finished difference Result 222 states and 286 transitions. [2022-07-13 04:17:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 04:17:31,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 286 transitions. [2022-07-13 04:17:31,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2022-07-13 04:17:31,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 222 states and 286 transitions. [2022-07-13 04:17:31,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 222 [2022-07-13 04:17:31,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 222 [2022-07-13 04:17:31,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 222 states and 286 transitions. [2022-07-13 04:17:31,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:17:31,206 INFO L369 hiAutomatonCegarLoop]: Abstraction has 222 states and 286 transitions. [2022-07-13 04:17:31,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states and 286 transitions. [2022-07-13 04:17:31,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-07-13 04:17:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 222 states have (on average 1.2882882882882882) internal successors, (286), 221 states have internal predecessors, (286), 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) [2022-07-13 04:17:31,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 286 transitions. [2022-07-13 04:17:31,213 INFO L392 hiAutomatonCegarLoop]: Abstraction has 222 states and 286 transitions. [2022-07-13 04:17:31,214 INFO L374 stractBuchiCegarLoop]: Abstraction has 222 states and 286 transitions. [2022-07-13 04:17:31,214 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 04:17:31,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 286 transitions. [2022-07-13 04:17:31,215 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2022-07-13 04:17:31,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:17:31,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:17:31,217 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:17:31,218 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, 1, 1, 1, 1] [2022-07-13 04:17:31,218 INFO L752 eck$LassoCheckResult]: Stem: 1089#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1028#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1029#L361 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1043#L354 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 1023#L369 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 1024#L458 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1054#L433 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1055#L478 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1001#L75-2 [2022-07-13 04:17:31,219 INFO L754 eck$LassoCheckResult]: Loop: 1001#L75-2 assume !false; 1051#L76 assume test_~splverifierCounter~0#1 < 4; 1052#L77 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1178#L85 assume !(0 != test_~tmp~0#1); 1176#L85-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1174#L95 assume !(0 != test_~tmp___0~0#1); 1077#L95-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 995#L105 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 996#L332 assume { :end_inline_startSystem } true; 1010#L113-2 assume { :begin_inline_timeShift } true; 1038#L150 assume !(0 != ~pumpRunning~0); 1069#L150-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1070#L182 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1078#L595 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1079#L600 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1065#L302 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1066#L302-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 979#L308 processEnvironment_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 980#L186 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1050#L174 assume { :end_inline_processEnvironment__wrappee__base } true; 1092#L182-1 assume { :end_inline_processEnvironment } true; 1094#L157-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1019#L555-1 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 1020#L489 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 984#L489-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1000#L167 assume { :end_inline_timeShift } true; 1001#L75-2 [2022-07-13 04:17:31,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:31,219 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-07-13 04:17:31,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:31,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282678941] [2022-07-13 04:17:31,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:31,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,235 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:17:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:17:31,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:31,254 INFO L85 PathProgramCache]: Analyzing trace with hash 850268259, now seen corresponding path program 1 times [2022-07-13 04:17:31,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:31,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187446816] [2022-07-13 04:17:31,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:31,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:17:31,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:17:31,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:17:31,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187446816] [2022-07-13 04:17:31,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187446816] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:17:31,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:17:31,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 04:17:31,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123830886] [2022-07-13 04:17:31,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:17:31,300 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 04:17:31,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:17:31,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 04:17:31,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 04:17:31,301 INFO L87 Difference]: Start difference. First operand 222 states and 286 transitions. cyclomatic complexity: 67 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-07-13 04:17:31,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:17:31,344 INFO L93 Difference]: Finished difference Result 638 states and 818 transitions. [2022-07-13 04:17:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 04:17:31,346 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 638 states and 818 transitions. [2022-07-13 04:17:31,354 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 475 [2022-07-13 04:17:31,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 638 states to 638 states and 818 transitions. [2022-07-13 04:17:31,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 638 [2022-07-13 04:17:31,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 638 [2022-07-13 04:17:31,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 638 states and 818 transitions. [2022-07-13 04:17:31,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:17:31,359 INFO L369 hiAutomatonCegarLoop]: Abstraction has 638 states and 818 transitions. [2022-07-13 04:17:31,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states and 818 transitions. [2022-07-13 04:17:31,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 228. [2022-07-13 04:17:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 228 states have (on average 1.280701754385965) internal successors, (292), 227 states have internal predecessors, (292), 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) [2022-07-13 04:17:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 292 transitions. [2022-07-13 04:17:31,381 INFO L392 hiAutomatonCegarLoop]: Abstraction has 228 states and 292 transitions. [2022-07-13 04:17:31,382 INFO L374 stractBuchiCegarLoop]: Abstraction has 228 states and 292 transitions. [2022-07-13 04:17:31,382 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 04:17:31,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 292 transitions. [2022-07-13 04:17:31,383 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 165 [2022-07-13 04:17:31,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:17:31,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:17:31,384 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:17:31,384 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, 1, 1, 1, 1] [2022-07-13 04:17:31,385 INFO L752 eck$LassoCheckResult]: Stem: 1958#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1899#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1900#L361 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1915#L354 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 1894#L369 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 1895#L458 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1926#L433 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1927#L478 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1871#L75-2 [2022-07-13 04:17:31,385 INFO L754 eck$LassoCheckResult]: Loop: 1871#L75-2 assume !false; 1923#L76 assume test_~splverifierCounter~0#1 < 4; 1924#L77 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1896#L85 assume !(0 != test_~tmp~0#1); 1828#L85-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1829#L95 assume !(0 != test_~tmp___0~0#1); 1933#L95-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1865#L105 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1866#L332 assume { :end_inline_startSystem } true; 1880#L113-2 assume { :begin_inline_timeShift } true; 1909#L150 assume !(0 != ~pumpRunning~0); 1940#L150-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1941#L182 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1948#L595 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1965#L600 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1937#L302 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1938#L302-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1849#L308 processEnvironment_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 1850#L186 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1921#L174 assume { :end_inline_processEnvironment__wrappee__base } true; 1962#L182-1 assume { :end_inline_processEnvironment } true; 1966#L157-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1890#L555-1 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 1891#L489 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 1854#L489-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1870#L167 assume { :end_inline_timeShift } true; 1871#L75-2 [2022-07-13 04:17:31,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:31,386 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-07-13 04:17:31,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:31,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546980813] [2022-07-13 04:17:31,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:31,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,400 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:17:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:17:31,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1551332837, now seen corresponding path program 1 times [2022-07-13 04:17:31,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:31,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256325923] [2022-07-13 04:17:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:31,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:17:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:17:31,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:17:31,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256325923] [2022-07-13 04:17:31,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256325923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:17:31,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:17:31,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 04:17:31,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397022287] [2022-07-13 04:17:31,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:17:31,456 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 04:17:31,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:17:31,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 04:17:31,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 04:17:31,458 INFO L87 Difference]: Start difference. First operand 228 states and 292 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2022-07-13 04:17:31,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:17:31,512 INFO L93 Difference]: Finished difference Result 715 states and 919 transitions. [2022-07-13 04:17:31,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 04:17:31,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 715 states and 919 transitions. [2022-07-13 04:17:31,516 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 540 [2022-07-13 04:17:31,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 715 states to 715 states and 919 transitions. [2022-07-13 04:17:31,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 715 [2022-07-13 04:17:31,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 715 [2022-07-13 04:17:31,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 715 states and 919 transitions. [2022-07-13 04:17:31,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:17:31,522 INFO L369 hiAutomatonCegarLoop]: Abstraction has 715 states and 919 transitions. [2022-07-13 04:17:31,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states and 919 transitions. [2022-07-13 04:17:31,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 237. [2022-07-13 04:17:31,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 237 states have (on average 1.270042194092827) internal successors, (301), 236 states have internal predecessors, (301), 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) [2022-07-13 04:17:31,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 301 transitions. [2022-07-13 04:17:31,529 INFO L392 hiAutomatonCegarLoop]: Abstraction has 237 states and 301 transitions. [2022-07-13 04:17:31,529 INFO L374 stractBuchiCegarLoop]: Abstraction has 237 states and 301 transitions. [2022-07-13 04:17:31,530 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 04:17:31,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 237 states and 301 transitions. [2022-07-13 04:17:31,531 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 171 [2022-07-13 04:17:31,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:17:31,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:17:31,532 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:17:31,532 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, 1, 1, 1, 1] [2022-07-13 04:17:31,532 INFO L752 eck$LassoCheckResult]: Stem: 2914#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2854#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 2855#L361 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2869#L354 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 2849#L369 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 2850#L458 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 2879#L433 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2880#L478 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2923#L75-2 [2022-07-13 04:17:31,533 INFO L754 eck$LassoCheckResult]: Loop: 2923#L75-2 assume !false; 2993#L76 assume test_~splverifierCounter~0#1 < 4; 2992#L77 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2990#L85 assume !(0 != test_~tmp~0#1); 2988#L85-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2986#L95 assume !(0 != test_~tmp___0~0#1); 2984#L95-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2983#L105 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2822#L332 assume { :end_inline_startSystem } true; 2836#L113-2 assume { :begin_inline_timeShift } true; 2863#L150 assume !(0 != ~pumpRunning~0); 2895#L150-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2896#L182 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2900#L595 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2901#L600 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 2902#L302 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2912#L302-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2806#L308 processEnvironment_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 2807#L186 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2919#L174 assume { :end_inline_processEnvironment__wrappee__base } true; 2920#L182-1 assume { :end_inline_processEnvironment } true; 2925#L157-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 3001#L555-1 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 2999#L489 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 2996#L489-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2995#L167 assume { :end_inline_timeShift } true; 2923#L75-2 [2022-07-13 04:17:31,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:31,533 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-07-13 04:17:31,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:31,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845576026] [2022-07-13 04:17:31,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:31,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,542 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:17:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:17:31,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:31,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1437074273, now seen corresponding path program 1 times [2022-07-13 04:17:31,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:31,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166945379] [2022-07-13 04:17:31,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:31,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,554 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:17:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:17:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:17:31,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2135319818, now seen corresponding path program 1 times [2022-07-13 04:17:31,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:17:31,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008834067] [2022-07-13 04:17:31,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:17:31,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:17:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,565 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:17:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:17:31,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:17:33,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 04:17:33 BoogieIcfgContainer [2022-07-13 04:17:33,641 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 04:17:33,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 04:17:33,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 04:17:33,642 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 04:17:33,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:17:30" (3/4) ... [2022-07-13 04:17:33,645 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-13 04:17:33,684 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 04:17:33,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 04:17:33,685 INFO L158 Benchmark]: Toolchain (without parser) took 4176.79ms. Allocated memory was 100.7MB in the beginning and 184.5MB in the end (delta: 83.9MB). Free memory was 54.6MB in the beginning and 61.6MB in the end (delta: -7.0MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2022-07-13 04:17:33,685 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:17:33,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.88ms. Allocated memory was 100.7MB in the beginning and 153.1MB in the end (delta: 52.4MB). Free memory was 54.4MB in the beginning and 116.7MB in the end (delta: -62.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-07-13 04:17:33,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.71ms. Allocated memory is still 153.1MB. Free memory was 116.7MB in the beginning and 113.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 04:17:33,686 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 153.1MB. Free memory was 113.5MB in the beginning and 111.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 04:17:33,687 INFO L158 Benchmark]: RCFGBuilder took 380.82ms. Allocated memory is still 153.1MB. Free memory was 111.4MB in the beginning and 110.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 04:17:33,687 INFO L158 Benchmark]: BuchiAutomizer took 3340.79ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 110.0MB in the beginning and 64.7MB in the end (delta: 45.2MB). Peak memory consumption was 87.9MB. Max. memory is 16.1GB. [2022-07-13 04:17:33,687 INFO L158 Benchmark]: Witness Printer took 42.59ms. Allocated memory is still 184.5MB. Free memory was 64.7MB in the beginning and 61.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 04:17:33,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.88ms. Allocated memory was 100.7MB in the beginning and 153.1MB in the end (delta: 52.4MB). Free memory was 54.4MB in the beginning and 116.7MB in the end (delta: -62.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.71ms. Allocated memory is still 153.1MB. Free memory was 116.7MB in the beginning and 113.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.60ms. Allocated memory is still 153.1MB. Free memory was 113.5MB in the beginning and 111.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.82ms. Allocated memory is still 153.1MB. Free memory was 111.4MB in the beginning and 110.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3340.79ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 110.0MB in the beginning and 64.7MB in the end (delta: 45.2MB). Peak memory consumption was 87.9MB. Max. memory is 16.1GB. * Witness Printer took 42.59ms. Allocated memory is still 184.5MB. Free memory was 64.7MB in the beginning and 61.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 237 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1098 StatesRemovedByMinimization, 3 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, 1728 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1728 mSDsluCounter, 3045 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2149 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 896 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 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: 75]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34c6e81e=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33db32a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34411029=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f57e73f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7846d8f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cebe4a4=29, methaneLevelCritical=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@706b1b44=0, \result=0, \result=1, \result=1, retValue_acc=1, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30f21e31=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f81cb8a=0, tmp___2=29, methAndRunningLastTime=0, tmp=1, tmp=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp___0=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 75]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L374] int cleanupTimeShifts = 4; [L472] int methAndRunningLastTime ; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L775] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L449] int retValue_acc ; [L450] int tmp ; [L454] FCALL select_helpers() [L455] FCALL select_features() [L456] CALL, EXPR valid_product() [L365] int retValue_acc ; [L368] retValue_acc = 1 [L369] return (retValue_acc); [L456] RET, EXPR valid_product() [L456] tmp = valid_product() [L458] COND TRUE \read(tmp) [L460] FCALL setup() [L461] CALL runTest() [L442] CALL __utac_acc__Specification2_spec__1() [L477] methAndRunningLastTime = 0 [L442] RET __utac_acc__Specification2_spec__1() [L443] CALL test() [L66] int splverifierCounter ; [L67] int tmp ; [L68] int tmp___0 ; [L69] int tmp___1 ; [L70] int tmp___2 ; [L73] splverifierCounter = 0 Loop: [L75] COND TRUE 1 [L77] COND TRUE splverifierCounter < 4 [L83] tmp = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp)) [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___0)) [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L107] CALL startSystem() [L331] systemActive = 1 [L107] RET startSystem() [L122] CALL timeShift() [L150] COND FALSE !(\read(pumpRunning)) [L157] COND TRUE \read(systemActive) [L159] CALL processEnvironment() [L179] int tmp ; [L182] COND TRUE ! pumpRunning [L184] CALL, EXPR isHighWaterLevel() [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L300] CALL, EXPR isHighWaterSensorDry() [L592] int retValue_acc ; [L595] COND TRUE waterLevel < 2 [L596] retValue_acc = 1 [L597] return (retValue_acc); [L300] RET, EXPR isHighWaterSensorDry() [L300] tmp = isHighWaterSensorDry() [L302] COND TRUE \read(tmp) [L303] tmp___0 = 0 [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); [L184] RET, EXPR isHighWaterLevel() [L184] tmp = isHighWaterLevel() [L186] COND FALSE !(\read(tmp)) [L192] FCALL processEnvironment__wrappee__base() [L159] RET processEnvironment() [L165] CALL __utac_acc__Specification2_spec__2() [L482] int tmp ; [L483] int tmp___0 ; [L487] CALL, EXPR isMethaneLevelCritical() [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); [L487] RET, EXPR isMethaneLevelCritical() [L487] tmp = isMethaneLevelCritical() [L489] COND FALSE !(\read(tmp)) [L505] methAndRunningLastTime = 0 [L165] RET __utac_acc__Specification2_spec__2() [L122] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-13 04:17:33,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)