./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product52.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_spec2_product52.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 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:24,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:24,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:24,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:24,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:24,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:24,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:24,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:24,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:24,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:24,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:24,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:24,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:24,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:24,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:24,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:24,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:24,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:24,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:24,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:24,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:24,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:24,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:24,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:24,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:24,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:24,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:24,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:24,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:24,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:24,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:24,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:24,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:24,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:24,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:24,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:24,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:24,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:24,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:24,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:24,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:24,888 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:24,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:24,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:24,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:24,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:24,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:24,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:24,910 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:24,910 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:24,910 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:24,910 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:24,911 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:24,911 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:24,911 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:24,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:24,911 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:24,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:24,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:24,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:24,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:24,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:24,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:24,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:24,913 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:24,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:24,913 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:24,913 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:24,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:24,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:24,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:24,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:24,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:24,916 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:24,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e [2022-02-21 04:16:25,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:25,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:25,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:25,173 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:25,174 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:25,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2022-02-21 04:16:25,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/543efbdad/3dfb3f30aec1487095acb6140428f24e/FLAG097dd9572 [2022-02-21 04:16:25,569 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:25,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2022-02-21 04:16:25,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/543efbdad/3dfb3f30aec1487095acb6140428f24e/FLAG097dd9572 [2022-02-21 04:16:25,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/543efbdad/3dfb3f30aec1487095acb6140428f24e [2022-02-21 04:16:25,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:25,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:25,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:25,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:25,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:25,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e17236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:25, skipping insertion in model container [2022-02-21 04:16:25,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:25" (1/1) ... [2022-02-21 04:16:25,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:26,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:26,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2022-02-21 04:16:26,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:26,320 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:26,393 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2022-02-21 04:16:26,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:26,416 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:26,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26 WrapperNode [2022-02-21 04:16:26,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:26,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:26,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:26,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:26,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,478 INFO L137 Inliner]: procedures = 58, calls = 158, calls flagged for inlining = 55, calls inlined = 81, statements flattened = 625 [2022-02-21 04:16:26,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:26,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:26,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:26,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:26,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:26,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:26,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:26,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:26,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (1/1) ... [2022-02-21 04:16:26,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:26,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:26,557 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 04:16:26,577 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 04:16:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:26,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:26,673 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:26,674 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:27,129 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:27,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:27,136 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:27,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:27 BoogieIcfgContainer [2022-02-21 04:16:27,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:27,139 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:27,140 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:27,144 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:27,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:27,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:25" (1/3) ... [2022-02-21 04:16:27,147 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a638142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:27, skipping insertion in model container [2022-02-21 04:16:27,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:27,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:26" (2/3) ... [2022-02-21 04:16:27,148 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a638142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:27, skipping insertion in model container [2022-02-21 04:16:27,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:27,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:27" (3/3) ... [2022-02-21 04:16:27,150 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2022-02-21 04:16:27,194 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:27,194 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:27,194 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:27,194 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:27,195 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:27,195 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:27,195 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:27,195 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:27,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 171 states, 170 states have (on average 1.3823529411764706) internal successors, (235), 170 states have internal predecessors, (235), 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 04:16:27,267 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2022-02-21 04:16:27,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:27,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:27,273 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:27,273 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:27,274 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:27,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 171 states, 170 states have (on average 1.3823529411764706) internal successors, (235), 170 states have internal predecessors, (235), 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 04:16:27,300 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2022-02-21 04:16:27,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:27,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:27,301 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:27,301 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:27,305 INFO L791 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 61#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~4#1, main_~tmp~5#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 13#L518true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 90#L511true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 122#L526true main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 39#L442true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 155#L414true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 62#L463true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 65#L66-2true [2022-02-21 04:16:27,307 INFO L793 eck$LassoCheckResult]: Loop: 65#L66-2true assume !false; 152#L67true assume test_~splverifierCounter~0#1 < 4; 161#L68true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 85#L76true assume !(0 != test_~tmp~0#1); 156#L76-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 5#L86true assume !(0 != test_~tmp___0~0#1); 171#L86-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 143#L96true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 31#L104true assume !(0 != test_~tmp___1~0#1); 170#L104-2true assume { :begin_inline_timeShift } true; 131#L142true assume !(0 != ~pumpRunning~0); 125#L142-2true assume !(0 != ~systemActive~0); 163#L149-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 23#L575true __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 78#L474true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 25#L474-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 97#L159true assume { :end_inline_timeShift } true; 65#L66-2true [2022-02-21 04:16:27,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:27,312 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:27,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:27,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031084669] [2022-02-21 04:16:27,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:27,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:27,462 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:27,521 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:27,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:27,524 INFO L85 PathProgramCache]: Analyzing trace with hash 176401079, now seen corresponding path program 1 times [2022-02-21 04:16:27,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:27,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168217316] [2022-02-21 04:16:27,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:27,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:27,555 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:27,565 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:27,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:27,566 INFO L85 PathProgramCache]: Analyzing trace with hash -559540498, now seen corresponding path program 1 times [2022-02-21 04:16:27,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:27,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708706602] [2022-02-21 04:16:27,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:27,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:27,724 INFO L290 TraceCheckUtils]: 0: Hoare triple {179#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {181#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:27,725 INFO L290 TraceCheckUtils]: 1: Hoare triple {181#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~4#1, main_~tmp~5#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {181#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:27,725 INFO L290 TraceCheckUtils]: 2: Hoare triple {181#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {181#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:27,726 INFO L290 TraceCheckUtils]: 3: Hoare triple {181#(= 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~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; {182#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:27,727 INFO L290 TraceCheckUtils]: 4: Hoare triple {182#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; {183#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} is VALID [2022-02-21 04:16:27,727 INFO L290 TraceCheckUtils]: 5: Hoare triple {183#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,728 INFO L290 TraceCheckUtils]: 6: Hoare triple {184#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,728 INFO L290 TraceCheckUtils]: 7: Hoare triple {184#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,729 INFO L290 TraceCheckUtils]: 8: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !false; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,730 INFO L290 TraceCheckUtils]: 9: Hoare triple {184#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,731 INFO L290 TraceCheckUtils]: 10: Hoare triple {184#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,731 INFO L290 TraceCheckUtils]: 11: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,732 INFO L290 TraceCheckUtils]: 12: Hoare triple {184#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,732 INFO L290 TraceCheckUtils]: 13: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,733 INFO L290 TraceCheckUtils]: 14: Hoare triple {184#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,734 INFO L290 TraceCheckUtils]: 15: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,734 INFO L290 TraceCheckUtils]: 16: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,735 INFO L290 TraceCheckUtils]: 17: Hoare triple {184#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,736 INFO L290 TraceCheckUtils]: 18: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {184#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:27,736 INFO L290 TraceCheckUtils]: 19: Hoare triple {184#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {180#false} is VALID [2022-02-21 04:16:27,737 INFO L290 TraceCheckUtils]: 20: Hoare triple {180#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {180#false} is VALID [2022-02-21 04:16:27,737 INFO L290 TraceCheckUtils]: 21: Hoare triple {180#false} __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; {180#false} is VALID [2022-02-21 04:16:27,737 INFO L290 TraceCheckUtils]: 22: Hoare triple {180#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; {180#false} is VALID [2022-02-21 04:16:27,737 INFO L290 TraceCheckUtils]: 23: Hoare triple {180#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {180#false} is VALID [2022-02-21 04:16:27,738 INFO L290 TraceCheckUtils]: 24: Hoare triple {180#false} assume { :end_inline_timeShift } true; {180#false} is VALID [2022-02-21 04:16:27,739 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 04:16:27,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:27,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708706602] [2022-02-21 04:16:27,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708706602] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:27,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:27,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:27,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456614485] [2022-02-21 04:16:27,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:27,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:27,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:27,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:27,885 INFO L87 Difference]: Start difference. First operand has 171 states, 170 states have (on average 1.3823529411764706) internal successors, (235), 170 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:28,971 INFO L93 Difference]: Finished difference Result 553 states and 735 transitions. [2022-02-21 04:16:28,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:28,972 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:28,994 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:28,998 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 553 states and 735 transitions. [2022-02-21 04:16:29,027 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 360 [2022-02-21 04:16:29,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 553 states to 513 states and 695 transitions. [2022-02-21 04:16:29,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 513 [2022-02-21 04:16:29,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 513 [2022-02-21 04:16:29,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 513 states and 695 transitions. [2022-02-21 04:16:29,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:29,056 INFO L681 BuchiCegarLoop]: Abstraction has 513 states and 695 transitions. [2022-02-21 04:16:29,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states and 695 transitions. [2022-02-21 04:16:29,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 213. [2022-02-21 04:16:29,086 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:29,087 INFO L82 GeneralOperation]: Start isEquivalent. First operand 513 states and 695 transitions. Second operand has 213 states, 213 states have (on average 1.352112676056338) internal successors, (288), 212 states have internal predecessors, (288), 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 04:16:29,088 INFO L74 IsIncluded]: Start isIncluded. First operand 513 states and 695 transitions. Second operand has 213 states, 213 states have (on average 1.352112676056338) internal successors, (288), 212 states have internal predecessors, (288), 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 04:16:29,089 INFO L87 Difference]: Start difference. First operand 513 states and 695 transitions. Second operand has 213 states, 213 states have (on average 1.352112676056338) internal successors, (288), 212 states have internal predecessors, (288), 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 04:16:29,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:29,103 INFO L93 Difference]: Finished difference Result 513 states and 695 transitions. [2022-02-21 04:16:29,103 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 695 transitions. [2022-02-21 04:16:29,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:29,106 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:29,107 INFO L74 IsIncluded]: Start isIncluded. First operand has 213 states, 213 states have (on average 1.352112676056338) internal successors, (288), 212 states have internal predecessors, (288), 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 513 states and 695 transitions. [2022-02-21 04:16:29,107 INFO L87 Difference]: Start difference. First operand has 213 states, 213 states have (on average 1.352112676056338) internal successors, (288), 212 states have internal predecessors, (288), 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 513 states and 695 transitions. [2022-02-21 04:16:29,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:29,120 INFO L93 Difference]: Finished difference Result 513 states and 695 transitions. [2022-02-21 04:16:29,120 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 695 transitions. [2022-02-21 04:16:29,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:29,122 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:29,122 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:29,122 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 213 states have (on average 1.352112676056338) internal successors, (288), 212 states have internal predecessors, (288), 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 04:16:29,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 288 transitions. [2022-02-21 04:16:29,128 INFO L704 BuchiCegarLoop]: Abstraction has 213 states and 288 transitions. [2022-02-21 04:16:29,128 INFO L587 BuchiCegarLoop]: Abstraction has 213 states and 288 transitions. [2022-02-21 04:16:29,128 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:29,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 288 transitions. [2022-02-21 04:16:29,129 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2022-02-21 04:16:29,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:29,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:29,130 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:29,130 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, 1] [2022-02-21 04:16:29,131 INFO L791 eck$LassoCheckResult]: Stem: 900#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 840#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~4#1, main_~tmp~5#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 761#L518 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 762#L511 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 868#L526 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 807#L442 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 808#L414 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 841#L463 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 842#L66-2 [2022-02-21 04:16:29,131 INFO L793 eck$LassoCheckResult]: Loop: 842#L66-2 assume !false; 844#L67 assume test_~splverifierCounter~0#1 < 4; 899#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 864#L76 assume !(0 != test_~tmp~0#1); 790#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 744#L86 assume !(0 != test_~tmp___0~0#1); 746#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 897#L96 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 867#L351 assume { :end_inline_startSystem } true; 795#L104-2 assume { :begin_inline_timeShift } true; 888#L142 assume !(0 != ~pumpRunning~0); 788#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 884#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 892#L174-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 806#L166-3 assume { :end_inline_processEnvironment__wrappee__base } true; 755#L174-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 756#L200-1 assume { :end_inline_processEnvironment } true; 797#L149-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 780#L575 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 781#L474 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 784#L474-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 785#L159 assume { :end_inline_timeShift } true; 842#L66-2 [2022-02-21 04:16:29,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:29,131 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:29,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:29,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982169082] [2022-02-21 04:16:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:29,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:29,142 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:29,165 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:29,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:29,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1767340359, now seen corresponding path program 1 times [2022-02-21 04:16:29,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:29,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752053606] [2022-02-21 04:16:29,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:29,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:29,178 INFO L290 TraceCheckUtils]: 0: Hoare triple {1986#true} assume !false; {1986#true} is VALID [2022-02-21 04:16:29,179 INFO L290 TraceCheckUtils]: 1: Hoare triple {1986#true} assume test_~splverifierCounter~0#1 < 4; {1986#true} is VALID [2022-02-21 04:16:29,179 INFO L290 TraceCheckUtils]: 2: Hoare triple {1986#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {1986#true} is VALID [2022-02-21 04:16:29,179 INFO L290 TraceCheckUtils]: 3: Hoare triple {1986#true} assume !(0 != test_~tmp~0#1); {1986#true} is VALID [2022-02-21 04:16:29,179 INFO L290 TraceCheckUtils]: 4: Hoare triple {1986#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1986#true} is VALID [2022-02-21 04:16:29,179 INFO L290 TraceCheckUtils]: 5: Hoare triple {1986#true} assume !(0 != test_~tmp___0~0#1); {1986#true} is VALID [2022-02-21 04:16:29,180 INFO L290 TraceCheckUtils]: 6: Hoare triple {1986#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1986#true} is VALID [2022-02-21 04:16:29,180 INFO L290 TraceCheckUtils]: 7: Hoare triple {1986#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1986#true} is VALID [2022-02-21 04:16:29,180 INFO L290 TraceCheckUtils]: 8: Hoare triple {1986#true} assume { :end_inline_startSystem } true; {1986#true} is VALID [2022-02-21 04:16:29,180 INFO L290 TraceCheckUtils]: 9: Hoare triple {1986#true} assume { :begin_inline_timeShift } true; {1986#true} is VALID [2022-02-21 04:16:29,181 INFO L290 TraceCheckUtils]: 10: Hoare triple {1986#true} assume !(0 != ~pumpRunning~0); {1988#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:29,181 INFO L290 TraceCheckUtils]: 11: Hoare triple {1988#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1988#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:29,181 INFO L290 TraceCheckUtils]: 12: Hoare triple {1988#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {1988#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:29,182 INFO L290 TraceCheckUtils]: 13: Hoare triple {1988#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1987#false} is VALID [2022-02-21 04:16:29,182 INFO L290 TraceCheckUtils]: 14: Hoare triple {1987#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1987#false} is VALID [2022-02-21 04:16:29,182 INFO L290 TraceCheckUtils]: 15: Hoare triple {1987#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1987#false} is VALID [2022-02-21 04:16:29,182 INFO L290 TraceCheckUtils]: 16: Hoare triple {1987#false} assume { :end_inline_processEnvironment } true; {1987#false} is VALID [2022-02-21 04:16:29,182 INFO L290 TraceCheckUtils]: 17: Hoare triple {1987#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {1987#false} is VALID [2022-02-21 04:16:29,183 INFO L290 TraceCheckUtils]: 18: Hoare triple {1987#false} __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; {1987#false} is VALID [2022-02-21 04:16:29,183 INFO L290 TraceCheckUtils]: 19: Hoare triple {1987#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; {1987#false} is VALID [2022-02-21 04:16:29,183 INFO L290 TraceCheckUtils]: 20: Hoare triple {1987#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {1987#false} is VALID [2022-02-21 04:16:29,183 INFO L290 TraceCheckUtils]: 21: Hoare triple {1987#false} assume { :end_inline_timeShift } true; {1987#false} is VALID [2022-02-21 04:16:29,183 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 04:16:29,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:29,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752053606] [2022-02-21 04:16:29,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752053606] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:29,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:29,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:29,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434035220] [2022-02-21 04:16:29,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:29,185 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:29,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:29,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:29,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:29,186 INFO L87 Difference]: Start difference. First operand 213 states and 288 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 04:16:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:29,374 INFO L93 Difference]: Finished difference Result 267 states and 346 transitions. [2022-02-21 04:16:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:29,375 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 04:16:29,388 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:29,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 346 transitions. [2022-02-21 04:16:29,394 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2022-02-21 04:16:29,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 267 states and 346 transitions. [2022-02-21 04:16:29,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2022-02-21 04:16:29,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2022-02-21 04:16:29,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 346 transitions. [2022-02-21 04:16:29,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:29,400 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 346 transitions. [2022-02-21 04:16:29,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 346 transitions. [2022-02-21 04:16:29,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-02-21 04:16:29,417 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:29,417 INFO L82 GeneralOperation]: Start isEquivalent. First operand 267 states and 346 transitions. Second operand has 267 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 266 states have internal predecessors, (346), 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 04:16:29,418 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states and 346 transitions. Second operand has 267 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 266 states have internal predecessors, (346), 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 04:16:29,419 INFO L87 Difference]: Start difference. First operand 267 states and 346 transitions. Second operand has 267 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 266 states have internal predecessors, (346), 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 04:16:29,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:29,424 INFO L93 Difference]: Finished difference Result 267 states and 346 transitions. [2022-02-21 04:16:29,424 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 346 transitions. [2022-02-21 04:16:29,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:29,424 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:29,425 INFO L74 IsIncluded]: Start isIncluded. First operand has 267 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 266 states have internal predecessors, (346), 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 267 states and 346 transitions. [2022-02-21 04:16:29,426 INFO L87 Difference]: Start difference. First operand has 267 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 266 states have internal predecessors, (346), 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 267 states and 346 transitions. [2022-02-21 04:16:29,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:29,431 INFO L93 Difference]: Finished difference Result 267 states and 346 transitions. [2022-02-21 04:16:29,431 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 346 transitions. [2022-02-21 04:16:29,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:29,432 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:29,432 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:29,432 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:29,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 266 states have internal predecessors, (346), 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 04:16:29,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 346 transitions. [2022-02-21 04:16:29,438 INFO L704 BuchiCegarLoop]: Abstraction has 267 states and 346 transitions. [2022-02-21 04:16:29,438 INFO L587 BuchiCegarLoop]: Abstraction has 267 states and 346 transitions. [2022-02-21 04:16:29,438 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:29,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 346 transitions. [2022-02-21 04:16:29,439 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2022-02-21 04:16:29,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:29,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:29,440 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:29,440 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, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:29,440 INFO L791 eck$LassoCheckResult]: Stem: 2429#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2355#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~4#1, main_~tmp~5#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2277#L518 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2278#L511 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 2388#L526 main_#t~ret21#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 2322#L442 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2323#L414 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2356#L463 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2357#L66-2 [2022-02-21 04:16:29,440 INFO L793 eck$LassoCheckResult]: Loop: 2357#L66-2 assume !false; 2497#L67 assume test_~splverifierCounter~0#1 < 4; 2495#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2493#L76 assume !(0 != test_~tmp~0#1); 2491#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2258#L86 assume !(0 != test_~tmp___0~0#1); 2260#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2433#L96 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2387#L351 assume { :end_inline_startSystem } true; 2310#L104-2 assume { :begin_inline_timeShift } true; 2432#L142 assume !(0 != ~pumpRunning~0); 2407#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2408#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2417#L174-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 2418#L615-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 2415#L620-1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 2267#L302-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2268#L302-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2324#L308-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 2325#L178-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2348#L166-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2269#L174-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2270#L200-1 assume { :end_inline_processEnvironment } true; 2312#L149-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~6#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~6#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 2294#L575 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~6#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 2295#L474 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6#1);~methAndRunningLastTime~0 := 0; 2500#L474-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2499#L159 assume { :end_inline_timeShift } true; 2357#L66-2 [2022-02-21 04:16:29,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:29,441 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:29,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:29,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361770332] [2022-02-21 04:16:29,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:29,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:29,449 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:29,463 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:29,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:29,467 INFO L85 PathProgramCache]: Analyzing trace with hash 444324049, now seen corresponding path program 1 times [2022-02-21 04:16:29,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:29,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96361449] [2022-02-21 04:16:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:29,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:29,475 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:29,486 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:29,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:29,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1443394618, now seen corresponding path program 1 times [2022-02-21 04:16:29,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:29,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658937856] [2022-02-21 04:16:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:29,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:29,510 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:29,537 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:32,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:32 BoogieIcfgContainer [2022-02-21 04:16:32,518 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:32,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:32,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:32,519 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:32,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:27" (3/4) ... [2022-02-21 04:16:32,521 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:32,589 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:32,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:32,591 INFO L158 Benchmark]: Toolchain (without parser) took 6616.69ms. Allocated memory was 86.0MB in the beginning and 146.8MB in the end (delta: 60.8MB). Free memory was 49.3MB in the beginning and 42.8MB in the end (delta: 6.5MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2022-02-21 04:16:32,591 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:32,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.95ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 49.1MB in the beginning and 82.2MB in the end (delta: -33.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:16:32,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.76ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 78.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:32,592 INFO L158 Benchmark]: Boogie Preprocessor took 43.30ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:32,594 INFO L158 Benchmark]: RCFGBuilder took 611.76ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 49.3MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:32,594 INFO L158 Benchmark]: BuchiAutomizer took 5378.53ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 49.2MB in the beginning and 45.9MB in the end (delta: 3.3MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:32,595 INFO L158 Benchmark]: Witness Printer took 70.93ms. Allocated memory is still 146.8MB. Free memory was 45.9MB in the beginning and 42.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:32,597 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 0.19ms. Allocated memory is still 86.0MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.95ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 49.1MB in the beginning and 82.2MB in the end (delta: -33.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.76ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 78.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.30ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.76ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 49.3MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 5378.53ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 49.2MB in the beginning and 45.9MB in the end (delta: 3.3MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Witness Printer took 70.93ms. Allocated memory is still 146.8MB. Free memory was 45.9MB in the beginning and 42.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 267 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 300 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 267 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1194 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1194 mSDsluCounter, 1909 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1462 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 447 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, retValue_acc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77033758=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@94f893f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a3ad20a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46ab216e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4148edd0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e755880=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f46840b=29, methaneLevelCritical=0, tmp=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3188968d=0, \result=0, \result=1, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15d9ca1e=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3590f5a8=0, tmp___2=29, methAndRunningLastTime=0, tmp=0, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0, \result=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 66]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L355] int cleanupTimeShifts = 4; [L457] int methAndRunningLastTime ; [L532] int waterLevel = 1; [L533] int methaneLevelCritical = 0; [L804] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L433] int retValue_acc ; [L434] int tmp ; [L438] FCALL select_helpers() [L439] FCALL select_features() [L440] CALL, EXPR valid_product() [L522] int retValue_acc ; [L525] retValue_acc = 1 [L526] return (retValue_acc); [L440] RET, EXPR valid_product() [L440] tmp = valid_product() [L442] COND TRUE \read(tmp) [L444] FCALL setup() [L445] CALL runTest() [L423] CALL __utac_acc__Specification2_spec__1() [L462] methAndRunningLastTime = 0 [L423] RET __utac_acc__Specification2_spec__1() [L424] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L350] systemActive = 1 [L98] RET startSystem() [L113] CALL timeShift() [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L197] int tmp ; [L200] COND FALSE !(\read(pumpRunning)) [L215] CALL processEnvironment__wrappee__highWaterSensor() [L171] int tmp ; [L174] COND TRUE ! pumpRunning [L176] CALL, EXPR isHighWaterLevel() [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L300] CALL, EXPR isHighWaterSensorDry() [L612] int retValue_acc ; [L615] COND TRUE waterLevel < 2 [L616] retValue_acc = 1 [L617] return (retValue_acc); [L300] RET, EXPR isHighWaterSensorDry() [L300] tmp = isHighWaterSensorDry() [L302] COND TRUE \read(tmp) [L303] tmp___0 = 0 [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); [L176] RET, EXPR isHighWaterLevel() [L176] tmp = isHighWaterLevel() [L178] COND FALSE !(\read(tmp)) [L184] FCALL processEnvironment__wrappee__base() [L215] RET processEnvironment__wrappee__highWaterSensor() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification2_spec__2() [L467] int tmp ; [L468] int tmp___0 ; [L472] CALL, EXPR isMethaneLevelCritical() [L571] int retValue_acc ; [L574] retValue_acc = methaneLevelCritical [L575] return (retValue_acc); [L472] RET, EXPR isMethaneLevelCritical() [L472] tmp = isMethaneLevelCritical() [L474] COND FALSE !(\read(tmp)) [L490] methAndRunningLastTime = 0 [L157] RET __utac_acc__Specification2_spec__2() [L113] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:32,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)