./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product27.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 8729c68adf95fe52029d1e2fee3adcb5035ca5756724ed2fc749f4c6dd51b810 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:55,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:55,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:55,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:55,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:55,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:55,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:55,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:55,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:55,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:55,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:55,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:55,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:55,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:55,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:55,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:55,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:55,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:55,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:55,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:55,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:55,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:55,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:55,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:55,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:55,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:55,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:55,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:55,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:55,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:55,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:55,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:55,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:55,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:55,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:55,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:55,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:55,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:55,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:55,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:55,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:55,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:55,823 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:55,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:55,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:55,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:55,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:55,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:55,833 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:55,833 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:55,833 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:55,833 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:55,834 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:55,834 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:55,835 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:55,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:55,835 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:55,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:55,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:55,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:55,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:55,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:55,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:55,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:55,836 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:55,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:55,838 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:55,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:55,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:55,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:55,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:55,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:55,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:55,840 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:55,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8729c68adf95fe52029d1e2fee3adcb5035ca5756724ed2fc749f4c6dd51b810 [2022-02-21 04:16:56,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:56,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:56,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:56,101 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:56,102 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:56,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2022-02-21 04:16:56,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af498ac37/1e782e5f5edb4d03b465fa5a0e89e4aa/FLAGc86725b34 [2022-02-21 04:16:56,566 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:56,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2022-02-21 04:16:56,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af498ac37/1e782e5f5edb4d03b465fa5a0e89e4aa/FLAGc86725b34 [2022-02-21 04:16:56,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af498ac37/1e782e5f5edb4d03b465fa5a0e89e4aa [2022-02-21 04:16:56,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:56,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:56,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:56,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:56,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:56,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d2932c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56, skipping insertion in model container [2022-02-21 04:16:56,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:57,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:57,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5608,5621] [2022-02-21 04:16:57,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:57,311 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:57,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5608,5621] [2022-02-21 04:16:57,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:57,435 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:57,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57 WrapperNode [2022-02-21 04:16:57,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:57,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:57,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:57,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:57,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,513 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 51, calls inlined = 52, statements flattened = 417 [2022-02-21 04:16:57,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:57,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:57,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:57,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:57,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:57,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:57,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:57,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:57,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:57,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:57,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:57,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:57,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:57,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:57,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:57,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:57,710 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:57,712 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:57,992 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:57,998 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:57,998 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:58,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:58 BoogieIcfgContainer [2022-02-21 04:16:58,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:58,001 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:58,001 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:58,004 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:58,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:58,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:56" (1/3) ... [2022-02-21 04:16:58,006 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dbe3033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:58, skipping insertion in model container [2022-02-21 04:16:58,006 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:58,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57" (2/3) ... [2022-02-21 04:16:58,006 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dbe3033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:58, skipping insertion in model container [2022-02-21 04:16:58,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:58,007 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:58" (3/3) ... [2022-02-21 04:16:58,008 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2022-02-21 04:16:58,080 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:58,080 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:58,080 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:58,080 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:58,081 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:58,081 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:58,081 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:58,081 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:58,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 112 states, 111 states have (on average 1.3693693693693694) internal successors, (152), 111 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,168 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 72 [2022-02-21 04:16:58,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:58,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:58,173 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:58,173 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:58,174 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:58,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 112 states, 111 states have (on average 1.3693693693693694) internal successors, (152), 111 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,196 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 72 [2022-02-21 04:16:58,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:58,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:58,198 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:58,198 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:58,207 INFO L791 eck$LassoCheckResult]: Stem: 107#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(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 71#L386true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 93#L379true 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; 15#L394true main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 34#L936true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 105#L913true assume { :end_inline_setup } true;assume { :begin_inline_runTest } 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; 37#L65-2true [2022-02-21 04:16:58,208 INFO L793 eck$LassoCheckResult]: Loop: 37#L65-2true assume !false; 31#L66true assume test_~splverifierCounter~0#1 < 4; 106#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 53#L75true assume !(0 != test_~tmp~0#1); 104#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 33#L85true assume !(0 != test_~tmp___0~0#1); 6#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 78#L95true assume 0 != test_~tmp___2~0#1; 76#L101-2true assume { :begin_inline_timeShift } true; 57#L138true assume !(0 != ~pumpRunning~0); 80#L138-2true assume !(0 != ~systemActive~0); 60#L145-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 88#L808true __utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 17#L327true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 100#L333-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 43#L155true assume { :end_inline_timeShift } true; 37#L65-2true [2022-02-21 04:16:58,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:58,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:58,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:58,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496692026] [2022-02-21 04:16:58,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:58,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,350 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,410 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:58,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:58,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1634798282, now seen corresponding path program 1 times [2022-02-21 04:16:58,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:58,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978115156] [2022-02-21 04:16:58,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:58,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,422 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,432 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:58,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:58,434 INFO L85 PathProgramCache]: Analyzing trace with hash -279379206, now seen corresponding path program 1 times [2022-02-21 04:16:58,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:58,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361560126] [2022-02-21 04:16:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:58,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:58,649 INFO L290 TraceCheckUtils]: 0: Hoare triple {120#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {122#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:58,650 INFO L290 TraceCheckUtils]: 1: Hoare triple {122#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; {122#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:58,650 INFO L290 TraceCheckUtils]: 2: Hoare triple {122#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {122#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:58,651 INFO L290 TraceCheckUtils]: 3: Hoare triple {122#(= 1 ~systemActive~0)} 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; {123#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:58,652 INFO L290 TraceCheckUtils]: 4: Hoare triple {123#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret52#1;havoc main_#t~ret52#1; {124#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} is VALID [2022-02-21 04:16:58,652 INFO L290 TraceCheckUtils]: 5: Hoare triple {124#(= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)} assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,653 INFO L290 TraceCheckUtils]: 6: Hoare triple {125#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } 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; {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,654 INFO L290 TraceCheckUtils]: 7: Hoare triple {125#(not (= 0 ~systemActive~0))} assume !false; {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,654 INFO L290 TraceCheckUtils]: 8: Hoare triple {125#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,655 INFO L290 TraceCheckUtils]: 9: Hoare triple {125#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,656 INFO L290 TraceCheckUtils]: 10: Hoare triple {125#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,657 INFO L290 TraceCheckUtils]: 11: Hoare triple {125#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,657 INFO L290 TraceCheckUtils]: 12: Hoare triple {125#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,658 INFO L290 TraceCheckUtils]: 13: Hoare triple {125#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,659 INFO L290 TraceCheckUtils]: 14: Hoare triple {125#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,659 INFO L290 TraceCheckUtils]: 15: Hoare triple {125#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,660 INFO L290 TraceCheckUtils]: 16: Hoare triple {125#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {125#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:58,660 INFO L290 TraceCheckUtils]: 17: Hoare triple {125#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {121#false} is VALID [2022-02-21 04:16:58,660 INFO L290 TraceCheckUtils]: 18: Hoare triple {121#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {121#false} is VALID [2022-02-21 04:16:58,661 INFO L290 TraceCheckUtils]: 19: Hoare triple {121#false} __utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; {121#false} is VALID [2022-02-21 04:16:58,661 INFO L290 TraceCheckUtils]: 20: Hoare triple {121#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {121#false} is VALID [2022-02-21 04:16:58,662 INFO L290 TraceCheckUtils]: 21: Hoare triple {121#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {121#false} is VALID [2022-02-21 04:16:58,662 INFO L290 TraceCheckUtils]: 22: Hoare triple {121#false} assume { :end_inline_timeShift } true; {121#false} is VALID [2022-02-21 04:16:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:58,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:58,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361560126] [2022-02-21 04:16:58,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361560126] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:58,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:58,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:58,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027986451] [2022-02-21 04:16:58,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:58,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:58,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:58,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:58,834 INFO L87 Difference]: Start difference. First operand has 112 states, 111 states have (on average 1.3693693693693694) internal successors, (152), 111 states have internal predecessors, (152), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:59,621 INFO L93 Difference]: Finished difference Result 281 states and 362 transitions. [2022-02-21 04:16:59,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:59,622 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,651 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:59,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 281 states and 362 transitions. [2022-02-21 04:16:59,670 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 179 [2022-02-21 04:16:59,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 281 states to 251 states and 332 transitions. [2022-02-21 04:16:59,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 251 [2022-02-21 04:16:59,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 251 [2022-02-21 04:16:59,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 251 states and 332 transitions. [2022-02-21 04:16:59,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:59,687 INFO L681 BuchiCegarLoop]: Abstraction has 251 states and 332 transitions. [2022-02-21 04:16:59,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states and 332 transitions. [2022-02-21 04:16:59,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 157. [2022-02-21 04:16:59,718 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:59,719 INFO L82 GeneralOperation]: Start isEquivalent. First operand 251 states and 332 transitions. Second operand has 157 states, 157 states have (on average 1.3248407643312101) internal successors, (208), 156 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,720 INFO L74 IsIncluded]: Start isIncluded. First operand 251 states and 332 transitions. Second operand has 157 states, 157 states have (on average 1.3248407643312101) internal successors, (208), 156 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,722 INFO L87 Difference]: Start difference. First operand 251 states and 332 transitions. Second operand has 157 states, 157 states have (on average 1.3248407643312101) internal successors, (208), 156 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:59,732 INFO L93 Difference]: Finished difference Result 251 states and 332 transitions. [2022-02-21 04:16:59,733 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 332 transitions. [2022-02-21 04:16:59,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:59,735 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:59,736 INFO L74 IsIncluded]: Start isIncluded. First operand has 157 states, 157 states have (on average 1.3248407643312101) internal successors, (208), 156 states have internal predecessors, (208), 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 251 states and 332 transitions. [2022-02-21 04:16:59,736 INFO L87 Difference]: Start difference. First operand has 157 states, 157 states have (on average 1.3248407643312101) internal successors, (208), 156 states have internal predecessors, (208), 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 251 states and 332 transitions. [2022-02-21 04:16:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:59,745 INFO L93 Difference]: Finished difference Result 251 states and 332 transitions. [2022-02-21 04:16:59,745 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 332 transitions. [2022-02-21 04:16:59,746 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:59,747 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:59,747 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:59,747 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 157 states have (on average 1.3248407643312101) internal successors, (208), 156 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 208 transitions. [2022-02-21 04:16:59,753 INFO L704 BuchiCegarLoop]: Abstraction has 157 states and 208 transitions. [2022-02-21 04:16:59,754 INFO L587 BuchiCegarLoop]: Abstraction has 157 states and 208 transitions. [2022-02-21 04:16:59,754 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:59,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 157 states and 208 transitions. [2022-02-21 04:16:59,755 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2022-02-21 04:16:59,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:59,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:59,756 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:59,756 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:59,756 INFO L791 eck$LassoCheckResult]: Stem: 508#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(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 465#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 466#L386 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 496#L379 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; 432#L394 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 433#L936 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 459#L913 assume { :end_inline_setup } true;assume { :begin_inline_runTest } 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; 464#L65-2 [2022-02-21 04:16:59,757 INFO L793 eck$LassoCheckResult]: Loop: 464#L65-2 assume !false; 455#L66 assume test_~splverifierCounter~0#1 < 4; 456#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 480#L75 assume !(0 != test_~tmp~0#1); 482#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 458#L85 assume !(0 != test_~tmp___0~0#1); 415#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 416#L95 assume 0 != test_~tmp___2~0#1; 501#L101-2 assume { :begin_inline_timeShift } true; 486#L138 assume !(0 != ~pumpRunning~0); 484#L138-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 490#L170 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 468#L162-1 assume { :end_inline_processEnvironment__wrappee__base } true; 452#L170-1 assume { :end_inline_processEnvironment } true; 473#L145-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 489#L808 __utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 434#L327 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 435#L333-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 471#L155 assume { :end_inline_timeShift } true; 464#L65-2 [2022-02-21 04:16:59,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:59,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:59,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:59,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621193337] [2022-02-21 04:16:59,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:59,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,776 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,795 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:59,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:59,796 INFO L85 PathProgramCache]: Analyzing trace with hash -313185568, now seen corresponding path program 1 times [2022-02-21 04:16:59,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:59,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821762353] [2022-02-21 04:16:59,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:59,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,805 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,811 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:59,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:59,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1988957852, now seen corresponding path program 1 times [2022-02-21 04:16:59,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:59,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32751946] [2022-02-21 04:16:59,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:59,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:59,902 INFO L290 TraceCheckUtils]: 0: Hoare triple {1077#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,904 INFO L290 TraceCheckUtils]: 1: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,904 INFO L290 TraceCheckUtils]: 2: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,905 INFO L290 TraceCheckUtils]: 3: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~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; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,905 INFO L290 TraceCheckUtils]: 4: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret52#1;havoc main_#t~ret52#1; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,906 INFO L290 TraceCheckUtils]: 5: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,906 INFO L290 TraceCheckUtils]: 6: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } 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; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,907 INFO L290 TraceCheckUtils]: 7: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume !false; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,907 INFO L290 TraceCheckUtils]: 8: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,908 INFO L290 TraceCheckUtils]: 9: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,908 INFO L290 TraceCheckUtils]: 10: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~0#1); {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,909 INFO L290 TraceCheckUtils]: 11: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,909 INFO L290 TraceCheckUtils]: 12: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,909 INFO L290 TraceCheckUtils]: 13: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,910 INFO L290 TraceCheckUtils]: 14: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,910 INFO L290 TraceCheckUtils]: 15: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,911 INFO L290 TraceCheckUtils]: 16: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,911 INFO L290 TraceCheckUtils]: 17: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,912 INFO L290 TraceCheckUtils]: 18: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,913 INFO L290 TraceCheckUtils]: 19: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,913 INFO L290 TraceCheckUtils]: 20: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {1079#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:59,914 INFO L290 TraceCheckUtils]: 21: Hoare triple {1079#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {1080#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:59,914 INFO L290 TraceCheckUtils]: 22: Hoare triple {1080#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; {1081#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~4#1| 0)} is VALID [2022-02-21 04:16:59,915 INFO L290 TraceCheckUtils]: 23: Hoare triple {1081#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~4#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; {1078#false} is VALID [2022-02-21 04:16:59,915 INFO L290 TraceCheckUtils]: 24: Hoare triple {1078#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1078#false} is VALID [2022-02-21 04:16:59,915 INFO L290 TraceCheckUtils]: 25: Hoare triple {1078#false} assume { :end_inline_timeShift } true; {1078#false} is VALID [2022-02-21 04:16:59,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:59,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:59,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32751946] [2022-02-21 04:16:59,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32751946] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:59,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:59,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:59,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487662019] [2022-02-21 04:16:59,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:00,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:00,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:00,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:00,006 INFO L87 Difference]: Start difference. First operand 157 states and 208 transitions. cyclomatic complexity: 54 Second operand has 5 states, 5 states have (on average 5.2) 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) [2022-02-21 04:17:00,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:00,554 INFO L93 Difference]: Finished difference Result 546 states and 727 transitions. [2022-02-21 04:17:00,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:00,554 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.2) 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) [2022-02-21 04:17:00,575 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:00,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 546 states and 727 transitions. [2022-02-21 04:17:00,597 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 412 [2022-02-21 04:17:00,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 546 states to 546 states and 727 transitions. [2022-02-21 04:17:00,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 546 [2022-02-21 04:17:00,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 546 [2022-02-21 04:17:00,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 546 states and 727 transitions. [2022-02-21 04:17:00,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:00,619 INFO L681 BuchiCegarLoop]: Abstraction has 546 states and 727 transitions. [2022-02-21 04:17:00,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states and 727 transitions. [2022-02-21 04:17:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 307. [2022-02-21 04:17:00,631 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:00,632 INFO L82 GeneralOperation]: Start isEquivalent. First operand 546 states and 727 transitions. Second operand has 307 states, 307 states have (on average 1.3061889250814331) internal successors, (401), 306 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:00,632 INFO L74 IsIncluded]: Start isIncluded. First operand 546 states and 727 transitions. Second operand has 307 states, 307 states have (on average 1.3061889250814331) internal successors, (401), 306 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:00,633 INFO L87 Difference]: Start difference. First operand 546 states and 727 transitions. Second operand has 307 states, 307 states have (on average 1.3061889250814331) internal successors, (401), 306 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:00,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:00,654 INFO L93 Difference]: Finished difference Result 546 states and 727 transitions. [2022-02-21 04:17:00,654 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 727 transitions. [2022-02-21 04:17:00,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:00,659 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:00,659 INFO L74 IsIncluded]: Start isIncluded. First operand has 307 states, 307 states have (on average 1.3061889250814331) internal successors, (401), 306 states have internal predecessors, (401), 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 546 states and 727 transitions. [2022-02-21 04:17:00,660 INFO L87 Difference]: Start difference. First operand has 307 states, 307 states have (on average 1.3061889250814331) internal successors, (401), 306 states have internal predecessors, (401), 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 546 states and 727 transitions. [2022-02-21 04:17:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:00,681 INFO L93 Difference]: Finished difference Result 546 states and 727 transitions. [2022-02-21 04:17:00,682 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 727 transitions. [2022-02-21 04:17:00,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:00,683 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:00,683 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:00,683 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:00,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 307 states have (on average 1.3061889250814331) internal successors, (401), 306 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:00,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 401 transitions. [2022-02-21 04:17:00,694 INFO L704 BuchiCegarLoop]: Abstraction has 307 states and 401 transitions. [2022-02-21 04:17:00,699 INFO L587 BuchiCegarLoop]: Abstraction has 307 states and 401 transitions. [2022-02-21 04:17:00,699 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:00,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 307 states and 401 transitions. [2022-02-21 04:17:00,702 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 224 [2022-02-21 04:17:00,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:00,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:00,703 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:00,703 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:00,703 INFO L791 eck$LassoCheckResult]: Stem: 1759#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(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1693#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1694#L386 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1736#L379 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; 1658#L394 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 1659#L936 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1687#L913 assume { :end_inline_setup } true;assume { :begin_inline_runTest } 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; 1692#L65-2 [2022-02-21 04:17:00,704 INFO L793 eck$LassoCheckResult]: Loop: 1692#L65-2 assume !false; 1682#L66 assume test_~splverifierCounter~0#1 < 4; 1683#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1712#L75 assume !(0 != test_~tmp~0#1); 1714#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1685#L85 assume !(0 != test_~tmp___0~0#1); 1640#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1641#L95 assume 0 != test_~tmp___2~0#1; 1742#L101-2 assume { :begin_inline_timeShift } true; 1721#L138 assume !(0 != ~pumpRunning~0); 1716#L138-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1819#L170 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1813#L162-1 assume { :end_inline_processEnvironment__wrappee__base } true; 1702#L170-1 assume { :end_inline_processEnvironment } true; 1703#L145-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1724#L808 __utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 1660#L327 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1661#L840 __utac_acc__Specification3_spec__1_#t~ret21#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 1717#L333 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1718#L333-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1699#L155 assume { :end_inline_timeShift } true; 1692#L65-2 [2022-02-21 04:17:00,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:00,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:00,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:00,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314528867] [2022-02-21 04:17:00,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:00,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,726 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,759 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:00,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:00,760 INFO L85 PathProgramCache]: Analyzing trace with hash -322368461, now seen corresponding path program 1 times [2022-02-21 04:17:00,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:00,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359675290] [2022-02-21 04:17:00,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:00,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,770 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,774 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:00,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:00,774 INFO L85 PathProgramCache]: Analyzing trace with hash 129300719, now seen corresponding path program 1 times [2022-02-21 04:17:00,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:00,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176684569] [2022-02-21 04:17:00,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:00,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,785 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,798 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:03,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:03 BoogieIcfgContainer [2022-02-21 04:17:03,652 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:03,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:03,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:03,653 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:03,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:58" (3/4) ... [2022-02-21 04:17:03,655 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:03,693 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:03,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:03,695 INFO L158 Benchmark]: Toolchain (without parser) took 6733.93ms. Allocated memory was 102.8MB in the beginning and 172.0MB in the end (delta: 69.2MB). Free memory was 60.6MB in the beginning and 93.6MB in the end (delta: -33.1MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:03,700 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 77.7MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:03,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.11ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 67.1MB in the end (delta: -6.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:03,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.32ms. Allocated memory is still 102.8MB. Free memory was 67.1MB in the beginning and 63.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:03,701 INFO L158 Benchmark]: Boogie Preprocessor took 38.92ms. Allocated memory is still 102.8MB. Free memory was 63.7MB in the beginning and 61.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:03,701 INFO L158 Benchmark]: RCFGBuilder took 446.37ms. Allocated memory is still 102.8MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 43.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:03,702 INFO L158 Benchmark]: BuchiAutomizer took 5651.00ms. Allocated memory was 102.8MB in the beginning and 172.0MB in the end (delta: 69.2MB). Free memory was 61.6MB in the beginning and 95.7MB in the end (delta: -34.1MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:03,702 INFO L158 Benchmark]: Witness Printer took 41.60ms. Allocated memory is still 172.0MB. Free memory was 95.7MB in the beginning and 93.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:03,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 77.7MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.11ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 67.1MB in the end (delta: -6.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.32ms. Allocated memory is still 102.8MB. Free memory was 67.1MB in the beginning and 63.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.92ms. Allocated memory is still 102.8MB. Free memory was 63.7MB in the beginning and 61.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 446.37ms. Allocated memory is still 102.8MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 43.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 5651.00ms. Allocated memory was 102.8MB in the beginning and 172.0MB in the end (delta: 69.2MB). Free memory was 61.6MB in the beginning and 95.7MB in the end (delta: -34.1MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. * Witness Printer took 41.60ms. Allocated memory is still 172.0MB. Free memory was 95.7MB in the beginning and 93.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 307 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 333 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 307 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 990 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 990 mSDsluCounter, 1665 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1336 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 329 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: 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, retValue_acc=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7195717f=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a00a97e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@529f880e=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b12bc01=29, methaneLevelCritical=0, tmp___0=1, \result=0, retValue_acc=0, tmp=0, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29e373fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f54f00d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1556e3d3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@573e1e73=0, tmp=1, tmp___2=29, tmp___1=0, tmp=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ae8f2c8=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int waterLevel = 1; [L766] int methaneLevelCritical = 0; [L854] int cleanupTimeShifts = 4; [L927] int retValue_acc ; [L928] int tmp ; [L932] FCALL select_helpers() [L933] FCALL select_features() [L934] CALL, EXPR valid_product() [L390] int retValue_acc ; [L393] retValue_acc = 1 [L394] return (retValue_acc); [L934] RET, EXPR valid_product() [L934] tmp = valid_product() [L936] COND TRUE \read(tmp) [L938] FCALL setup() [L939] CALL runTest() [L921] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L147] CALL processEnvironment() [L167] int tmp ; [L170] COND FALSE !(\read(pumpRunning)) [L185] FCALL processEnvironment__wrappee__base() [L147] RET processEnvironment() [L153] CALL __utac_acc__Specification3_spec__1() [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L325] CALL, EXPR isMethaneLevelCritical() [L804] int retValue_acc ; [L807] retValue_acc = methaneLevelCritical [L808] return (retValue_acc); [L325] RET, EXPR isMethaneLevelCritical() [L325] tmp = isMethaneLevelCritical() [L327] COND FALSE !(\read(tmp)) [L331] CALL, EXPR getWaterLevel() [L836] int retValue_acc ; [L839] retValue_acc = waterLevel [L840] return (retValue_acc); [L331] RET, EXPR getWaterLevel() [L331] tmp___0 = getWaterLevel() [L333] COND FALSE !(tmp___0 == 2) [L153] RET __utac_acc__Specification3_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:03,753 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)