./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product64.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 d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:23,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:23,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:23,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:23,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:23,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:23,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:23,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:23,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:23,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:23,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:23,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:23,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:23,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:23,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:23,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:23,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:23,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:23,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:23,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:23,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:23,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:23,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:23,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:23,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:23,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:23,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:23,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:23,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:23,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:23,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:23,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:23,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:23,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:23,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:23,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:23,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:23,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:23,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:23,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:23,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:23,952 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:23,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:23,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:23,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:23,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:23,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:23,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:23,990 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:23,991 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:23,991 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:23,991 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:23,992 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:23,992 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:23,992 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:23,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:23,993 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:23,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:23,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:23,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:23,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:23,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:23,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:23,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:24,000 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:24,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:24,000 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:24,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:24,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:24,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:24,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:24,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:24,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:24,002 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:24,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f [2022-02-21 04:17:24,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:24,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:24,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:24,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:24,245 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:24,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2022-02-21 04:17:24,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d367f753/9e98534945a34cbb8df405182ccfc7eb/FLAG31901ee9e [2022-02-21 04:17:24,708 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:24,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2022-02-21 04:17:24,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d367f753/9e98534945a34cbb8df405182ccfc7eb/FLAG31901ee9e [2022-02-21 04:17:25,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d367f753/9e98534945a34cbb8df405182ccfc7eb [2022-02-21 04:17:25,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:25,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:25,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:25,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:25,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:25,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17767657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25, skipping insertion in model container [2022-02-21 04:17:25,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:25,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:25,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[19022,19035] [2022-02-21 04:17:25,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:25,422 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:25,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[19022,19035] [2022-02-21 04:17:25,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:25,532 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:25,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25 WrapperNode [2022-02-21 04:17:25,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:25,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:25,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:25,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:25,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,616 INFO L137 Inliner]: procedures = 59, calls = 164, calls flagged for inlining = 61, calls inlined = 179, statements flattened = 1296 [2022-02-21 04:17:25,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:25,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:25,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:25,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:25,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:25,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:25,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:25,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:25,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (1/1) ... [2022-02-21 04:17:25,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:25,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:25,723 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 04:17:25,750 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 04:17:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:25,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:25,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:25,854 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:25,856 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:26,674 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:26,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:26,694 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:26,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:26 BoogieIcfgContainer [2022-02-21 04:17:26,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:26,698 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:26,698 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:26,703 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:26,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:26,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:25" (1/3) ... [2022-02-21 04:17:26,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54ac58de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:26, skipping insertion in model container [2022-02-21 04:17:26,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:26,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:25" (2/3) ... [2022-02-21 04:17:26,706 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54ac58de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:26, skipping insertion in model container [2022-02-21 04:17:26,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:26,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:26" (3/3) ... [2022-02-21 04:17:26,707 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2022-02-21 04:17:26,747 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:26,747 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:26,747 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:26,747 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:26,748 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:26,748 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:26,748 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:26,748 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:26,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:26,892 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2022-02-21 04:17:26,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:26,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:26,903 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:26,903 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 04:17:26,903 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:26,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:26,933 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2022-02-21 04:17:26,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:26,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:26,935 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:26,936 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 04:17:26,947 INFO L791 eck$LassoCheckResult]: Stem: 320#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 205#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 242#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 324#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 37#L83true main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 52#L988true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 275#L965true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 24#L377-2true [2022-02-21 04:17:26,948 INFO L793 eck$LassoCheckResult]: Loop: 24#L377-2true assume !false; 177#L378true assume test_~splverifierCounter~0#1 < 4; 119#L379true test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 224#L387true assume !(0 != test_~tmp~6#1); 297#L387-2true test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 143#L397true assume !(0 != test_~tmp___0~2#1); 180#L397-2true test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 21#L407true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 27#L360true assume { :end_inline_startSystem } true; 163#L415-2true assume { :begin_inline_timeShift } true; 32#L108true assume !(0 != ~pumpRunning~0); 291#L108-2true assume !(0 != ~systemActive~0); 76#L115-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 232#L480-5true __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; 282#L1020true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1; 28#L1026-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 285#L125true assume { :end_inline_timeShift } true; 24#L377-2true [2022-02-21 04:17:26,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:26,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:26,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:26,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104006487] [2022-02-21 04:17:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:26,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:27,104 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:27,166 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1296505389, now seen corresponding path program 1 times [2022-02-21 04:17:27,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:27,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715952323] [2022-02-21 04:17:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:27,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:27,231 INFO L290 TraceCheckUtils]: 0: Hoare triple {335#true} assume !false; {335#true} is VALID [2022-02-21 04:17:27,231 INFO L290 TraceCheckUtils]: 1: Hoare triple {335#true} assume test_~splverifierCounter~0#1 < 4; {335#true} is VALID [2022-02-21 04:17:27,231 INFO L290 TraceCheckUtils]: 2: Hoare triple {335#true} test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {335#true} is VALID [2022-02-21 04:17:27,232 INFO L290 TraceCheckUtils]: 3: Hoare triple {335#true} assume !(0 != test_~tmp~6#1); {335#true} is VALID [2022-02-21 04:17:27,232 INFO L290 TraceCheckUtils]: 4: Hoare triple {335#true} test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {335#true} is VALID [2022-02-21 04:17:27,232 INFO L290 TraceCheckUtils]: 5: Hoare triple {335#true} assume !(0 != test_~tmp___0~2#1); {335#true} is VALID [2022-02-21 04:17:27,232 INFO L290 TraceCheckUtils]: 6: Hoare triple {335#true} test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {335#true} is VALID [2022-02-21 04:17:27,233 INFO L290 TraceCheckUtils]: 7: Hoare triple {335#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {337#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:27,234 INFO L290 TraceCheckUtils]: 8: Hoare triple {337#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {337#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:27,234 INFO L290 TraceCheckUtils]: 9: Hoare triple {337#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {337#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:27,235 INFO L290 TraceCheckUtils]: 10: Hoare triple {337#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {337#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:27,235 INFO L290 TraceCheckUtils]: 11: Hoare triple {337#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {336#false} is VALID [2022-02-21 04:17:27,236 INFO L290 TraceCheckUtils]: 12: Hoare triple {336#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {336#false} is VALID [2022-02-21 04:17:27,236 INFO L290 TraceCheckUtils]: 13: Hoare triple {336#false} __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; {336#false} is VALID [2022-02-21 04:17:27,236 INFO L290 TraceCheckUtils]: 14: Hoare triple {336#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1; {336#false} is VALID [2022-02-21 04:17:27,236 INFO L290 TraceCheckUtils]: 15: Hoare triple {336#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {336#false} is VALID [2022-02-21 04:17:27,237 INFO L290 TraceCheckUtils]: 16: Hoare triple {336#false} assume { :end_inline_timeShift } true; {336#false} is VALID [2022-02-21 04:17:27,238 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 04:17:27,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:27,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715952323] [2022-02-21 04:17:27,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715952323] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:27,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:27,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:27,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452185770] [2022-02-21 04:17:27,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:27,244 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:27,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:27,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:27,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:27,276 INFO L87 Difference]: Start difference. First operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:27,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:27,911 INFO L93 Difference]: Finished difference Result 643 states and 855 transitions. [2022-02-21 04:17:27,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:27,912 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:27,927 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:27,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 643 states and 855 transitions. [2022-02-21 04:17:27,960 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 424 [2022-02-21 04:17:27,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 643 states to 623 states and 834 transitions. [2022-02-21 04:17:27,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 623 [2022-02-21 04:17:27,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 623 [2022-02-21 04:17:27,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 623 states and 834 transitions. [2022-02-21 04:17:27,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:27,993 INFO L681 BuchiCegarLoop]: Abstraction has 623 states and 834 transitions. [2022-02-21 04:17:28,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states and 834 transitions. [2022-02-21 04:17:28,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 620. [2022-02-21 04:17:28,041 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:28,048 INFO L82 GeneralOperation]: Start isEquivalent. First operand 623 states and 834 transitions. Second operand has 620 states, 620 states have (on average 1.3387096774193548) internal successors, (830), 619 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,056 INFO L74 IsIncluded]: Start isIncluded. First operand 623 states and 834 transitions. Second operand has 620 states, 620 states have (on average 1.3387096774193548) internal successors, (830), 619 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,058 INFO L87 Difference]: Start difference. First operand 623 states and 834 transitions. Second operand has 620 states, 620 states have (on average 1.3387096774193548) internal successors, (830), 619 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,090 INFO L93 Difference]: Finished difference Result 623 states and 834 transitions. [2022-02-21 04:17:28,090 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 834 transitions. [2022-02-21 04:17:28,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,100 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,103 INFO L74 IsIncluded]: Start isIncluded. First operand has 620 states, 620 states have (on average 1.3387096774193548) internal successors, (830), 619 states have internal predecessors, (830), 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 623 states and 834 transitions. [2022-02-21 04:17:28,106 INFO L87 Difference]: Start difference. First operand has 620 states, 620 states have (on average 1.3387096774193548) internal successors, (830), 619 states have internal predecessors, (830), 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 623 states and 834 transitions. [2022-02-21 04:17:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,133 INFO L93 Difference]: Finished difference Result 623 states and 834 transitions. [2022-02-21 04:17:28,133 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 834 transitions. [2022-02-21 04:17:28,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,135 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:28,135 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:28,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 620 states have (on average 1.3387096774193548) internal successors, (830), 619 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 830 transitions. [2022-02-21 04:17:28,166 INFO L704 BuchiCegarLoop]: Abstraction has 620 states and 830 transitions. [2022-02-21 04:17:28,166 INFO L587 BuchiCegarLoop]: Abstraction has 620 states and 830 transitions. [2022-02-21 04:17:28,166 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:28,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 620 states and 830 transitions. [2022-02-21 04:17:28,170 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 421 [2022-02-21 04:17:28,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:28,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:28,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:28,172 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] [2022-02-21 04:17:28,173 INFO L791 eck$LassoCheckResult]: Stem: 1340#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1262#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1263#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1292#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1048#L83 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 1049#L988 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1077#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1315#L377-2 [2022-02-21 04:17:28,182 INFO L793 eck$LassoCheckResult]: Loop: 1315#L377-2 assume !false; 1350#L378 assume test_~splverifierCounter~0#1 < 4; 1351#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1598#L387 assume !(0 != test_~tmp~6#1); 1596#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1594#L397 assume !(0 != test_~tmp___0~2#1); 1592#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1591#L407 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1590#L415 assume !(0 != test_~tmp___1~0#1); 1032#L415-2 assume { :begin_inline_timeShift } true; 1418#L108 assume !(0 != ~pumpRunning~0); 1324#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1325#L192 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1369#L480 isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 1366#L253 processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; 1358#L196 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1356#L243-1 assume { :end_inline_deactivatePump } true; 1355#L192-1 assume { :end_inline_processEnvironment } true; 1354#L115-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1353#L480-5 __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; 1317#L1020 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1; 1033#L1026-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1034#L125 assume { :end_inline_timeShift } true; 1315#L377-2 [2022-02-21 04:17:28,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:28,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447283644] [2022-02-21 04:17:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,238 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,255 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:28,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1618536586, now seen corresponding path program 1 times [2022-02-21 04:17:28,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998005986] [2022-02-21 04:17:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:28,275 INFO L290 TraceCheckUtils]: 0: Hoare triple {2852#true} assume !false; {2852#true} is VALID [2022-02-21 04:17:28,276 INFO L290 TraceCheckUtils]: 1: Hoare triple {2852#true} assume test_~splverifierCounter~0#1 < 4; {2852#true} is VALID [2022-02-21 04:17:28,276 INFO L290 TraceCheckUtils]: 2: Hoare triple {2852#true} test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {2852#true} is VALID [2022-02-21 04:17:28,276 INFO L290 TraceCheckUtils]: 3: Hoare triple {2852#true} assume !(0 != test_~tmp~6#1); {2852#true} is VALID [2022-02-21 04:17:28,276 INFO L290 TraceCheckUtils]: 4: Hoare triple {2852#true} test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {2852#true} is VALID [2022-02-21 04:17:28,277 INFO L290 TraceCheckUtils]: 5: Hoare triple {2852#true} assume !(0 != test_~tmp___0~2#1); {2852#true} is VALID [2022-02-21 04:17:28,277 INFO L290 TraceCheckUtils]: 6: Hoare triple {2852#true} test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {2852#true} is VALID [2022-02-21 04:17:28,277 INFO L290 TraceCheckUtils]: 7: Hoare triple {2852#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {2852#true} is VALID [2022-02-21 04:17:28,277 INFO L290 TraceCheckUtils]: 8: Hoare triple {2852#true} assume !(0 != test_~tmp___1~0#1); {2852#true} is VALID [2022-02-21 04:17:28,278 INFO L290 TraceCheckUtils]: 9: Hoare triple {2852#true} assume { :begin_inline_timeShift } true; {2852#true} is VALID [2022-02-21 04:17:28,278 INFO L290 TraceCheckUtils]: 10: Hoare triple {2852#true} assume !(0 != ~pumpRunning~0); {2854#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:28,279 INFO L290 TraceCheckUtils]: 11: Hoare triple {2854#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {2854#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:28,279 INFO L290 TraceCheckUtils]: 12: Hoare triple {2854#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {2853#false} is VALID [2022-02-21 04:17:28,279 INFO L290 TraceCheckUtils]: 13: Hoare triple {2853#false} isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; {2853#false} is VALID [2022-02-21 04:17:28,279 INFO L290 TraceCheckUtils]: 14: Hoare triple {2853#false} processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; {2853#false} is VALID [2022-02-21 04:17:28,280 INFO L290 TraceCheckUtils]: 15: Hoare triple {2853#false} assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2853#false} is VALID [2022-02-21 04:17:28,280 INFO L290 TraceCheckUtils]: 16: Hoare triple {2853#false} assume { :end_inline_deactivatePump } true; {2853#false} is VALID [2022-02-21 04:17:28,280 INFO L290 TraceCheckUtils]: 17: Hoare triple {2853#false} assume { :end_inline_processEnvironment } true; {2853#false} is VALID [2022-02-21 04:17:28,280 INFO L290 TraceCheckUtils]: 18: Hoare triple {2853#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {2853#false} is VALID [2022-02-21 04:17:28,281 INFO L290 TraceCheckUtils]: 19: Hoare triple {2853#false} __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; {2853#false} is VALID [2022-02-21 04:17:28,281 INFO L290 TraceCheckUtils]: 20: Hoare triple {2853#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1; {2853#false} is VALID [2022-02-21 04:17:28,281 INFO L290 TraceCheckUtils]: 21: Hoare triple {2853#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2853#false} is VALID [2022-02-21 04:17:28,281 INFO L290 TraceCheckUtils]: 22: Hoare triple {2853#false} assume { :end_inline_timeShift } true; {2853#false} is VALID [2022-02-21 04:17:28,282 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 04:17:28,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:28,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998005986] [2022-02-21 04:17:28,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998005986] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:28,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:28,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:28,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489735753] [2022-02-21 04:17:28,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:28,283 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:28,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:28,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:28,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:28,285 INFO L87 Difference]: Start difference. First operand 620 states and 830 transitions. cyclomatic complexity: 213 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,619 INFO L93 Difference]: Finished difference Result 648 states and 827 transitions. [2022-02-21 04:17:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:28,619 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,636 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:28,637 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 648 states and 827 transitions. [2022-02-21 04:17:28,658 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 451 [2022-02-21 04:17:28,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 648 states to 648 states and 827 transitions. [2022-02-21 04:17:28,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 648 [2022-02-21 04:17:28,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 648 [2022-02-21 04:17:28,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 648 states and 827 transitions. [2022-02-21 04:17:28,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:28,680 INFO L681 BuchiCegarLoop]: Abstraction has 648 states and 827 transitions. [2022-02-21 04:17:28,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states and 827 transitions. [2022-02-21 04:17:28,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 648. [2022-02-21 04:17:28,694 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:28,695 INFO L82 GeneralOperation]: Start isEquivalent. First operand 648 states and 827 transitions. Second operand has 648 states, 648 states have (on average 1.2762345679012346) internal successors, (827), 647 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,697 INFO L74 IsIncluded]: Start isIncluded. First operand 648 states and 827 transitions. Second operand has 648 states, 648 states have (on average 1.2762345679012346) internal successors, (827), 647 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,698 INFO L87 Difference]: Start difference. First operand 648 states and 827 transitions. Second operand has 648 states, 648 states have (on average 1.2762345679012346) internal successors, (827), 647 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,717 INFO L93 Difference]: Finished difference Result 648 states and 827 transitions. [2022-02-21 04:17:28,717 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 827 transitions. [2022-02-21 04:17:28,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,718 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,720 INFO L74 IsIncluded]: Start isIncluded. First operand has 648 states, 648 states have (on average 1.2762345679012346) internal successors, (827), 647 states have internal predecessors, (827), 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 648 states and 827 transitions. [2022-02-21 04:17:28,722 INFO L87 Difference]: Start difference. First operand has 648 states, 648 states have (on average 1.2762345679012346) internal successors, (827), 647 states have internal predecessors, (827), 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 648 states and 827 transitions. [2022-02-21 04:17:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:28,742 INFO L93 Difference]: Finished difference Result 648 states and 827 transitions. [2022-02-21 04:17:28,742 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 827 transitions. [2022-02-21 04:17:28,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:28,743 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:28,743 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:28,743 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:28,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 648 states have (on average 1.2762345679012346) internal successors, (827), 647 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:28,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 827 transitions. [2022-02-21 04:17:28,773 INFO L704 BuchiCegarLoop]: Abstraction has 648 states and 827 transitions. [2022-02-21 04:17:28,773 INFO L587 BuchiCegarLoop]: Abstraction has 648 states and 827 transitions. [2022-02-21 04:17:28,773 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:28,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 648 states and 827 transitions. [2022-02-21 04:17:28,776 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 451 [2022-02-21 04:17:28,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:28,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:28,777 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:28,777 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, 1, 1] [2022-02-21 04:17:28,777 INFO L791 eck$LassoCheckResult]: Stem: 3809#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3740#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3741#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3770#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3558#L83 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 3559#L988 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3581#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3790#L377-2 [2022-02-21 04:17:28,778 INFO L793 eck$LassoCheckResult]: Loop: 3790#L377-2 assume !false; 3938#L378 assume test_~splverifierCounter~0#1 < 4; 3935#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 3932#L387 assume !(0 != test_~tmp~6#1); 3927#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 3924#L397 assume !(0 != test_~tmp___0~2#1); 3922#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 3921#L407 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 3920#L415 assume !(0 != test_~tmp___1~0#1); 3542#L415-2 assume { :begin_inline_timeShift } true; 3919#L108 assume !(0 != ~pumpRunning~0); 3918#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3917#L192 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 3909#L166-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3916#L140-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3915#L520-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3774#L525-3 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 3775#L311-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3904#L311-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 3902#L317-3 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 3898#L144-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3763#L132-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3672#L140-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3950#L166-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3949#L192-1 assume { :end_inline_processEnvironment } true; 3948#L115-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 3947#L480-5 __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; 3943#L1020 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1; 3941#L1026-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3940#L125 assume { :end_inline_timeShift } true; 3790#L377-2 [2022-02-21 04:17:28,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:28,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866242519] [2022-02-21 04:17:28,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,792 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,804 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:28,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1404974294, now seen corresponding path program 1 times [2022-02-21 04:17:28,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590113720] [2022-02-21 04:17:28,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,819 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:28,827 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:28,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:28,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1007783442, now seen corresponding path program 1 times [2022-02-21 04:17:28,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:28,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481050266] [2022-02-21 04:17:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:28,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:28,889 INFO L290 TraceCheckUtils]: 0: Hoare triple {5454#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,890 INFO L290 TraceCheckUtils]: 1: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,890 INFO L290 TraceCheckUtils]: 2: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,891 INFO L290 TraceCheckUtils]: 3: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,891 INFO L290 TraceCheckUtils]: 4: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,891 INFO L290 TraceCheckUtils]: 5: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,892 INFO L290 TraceCheckUtils]: 6: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,892 INFO L290 TraceCheckUtils]: 7: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume !false; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,893 INFO L290 TraceCheckUtils]: 8: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,893 INFO L290 TraceCheckUtils]: 9: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,895 INFO L290 TraceCheckUtils]: 10: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~6#1); {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,896 INFO L290 TraceCheckUtils]: 11: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,896 INFO L290 TraceCheckUtils]: 12: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~2#1); {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,897 INFO L290 TraceCheckUtils]: 13: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,897 INFO L290 TraceCheckUtils]: 14: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,899 INFO L290 TraceCheckUtils]: 15: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___1~0#1); {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,900 INFO L290 TraceCheckUtils]: 16: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,900 INFO L290 TraceCheckUtils]: 17: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,901 INFO L290 TraceCheckUtils]: 18: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,901 INFO L290 TraceCheckUtils]: 19: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,901 INFO L290 TraceCheckUtils]: 20: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,902 INFO L290 TraceCheckUtils]: 21: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,902 INFO L290 TraceCheckUtils]: 22: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,903 INFO L290 TraceCheckUtils]: 23: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,903 INFO L290 TraceCheckUtils]: 24: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,903 INFO L290 TraceCheckUtils]: 25: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,904 INFO L290 TraceCheckUtils]: 26: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,905 INFO L290 TraceCheckUtils]: 27: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,905 INFO L290 TraceCheckUtils]: 28: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,905 INFO L290 TraceCheckUtils]: 29: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,906 INFO L290 TraceCheckUtils]: 30: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,906 INFO L290 TraceCheckUtils]: 31: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {5456#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:28,907 INFO L290 TraceCheckUtils]: 32: Hoare triple {5456#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {5457#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:28,907 INFO L290 TraceCheckUtils]: 33: Hoare triple {5457#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; {5458#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~11#1| 0)} is VALID [2022-02-21 04:17:28,908 INFO L290 TraceCheckUtils]: 34: Hoare triple {5458#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~11#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1; {5455#false} is VALID [2022-02-21 04:17:28,908 INFO L290 TraceCheckUtils]: 35: Hoare triple {5455#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {5455#false} is VALID [2022-02-21 04:17:28,908 INFO L290 TraceCheckUtils]: 36: Hoare triple {5455#false} assume { :end_inline_timeShift } true; {5455#false} is VALID [2022-02-21 04:17:28,909 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 04:17:28,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:28,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481050266] [2022-02-21 04:17:28,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481050266] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:28,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:28,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:28,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079164640] [2022-02-21 04:17:28,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:29,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:29,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:29,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:29,184 INFO L87 Difference]: Start difference. First operand 648 states and 827 transitions. cyclomatic complexity: 182 Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:30,932 INFO L93 Difference]: Finished difference Result 2224 states and 2826 transitions. [2022-02-21 04:17:30,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:30,932 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:30,971 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:30,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2224 states and 2826 transitions. [2022-02-21 04:17:31,157 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1631 [2022-02-21 04:17:31,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2224 states to 2224 states and 2826 transitions. [2022-02-21 04:17:31,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2224 [2022-02-21 04:17:31,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2224 [2022-02-21 04:17:31,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2224 states and 2826 transitions. [2022-02-21 04:17:31,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:31,355 INFO L681 BuchiCegarLoop]: Abstraction has 2224 states and 2826 transitions. [2022-02-21 04:17:31,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states and 2826 transitions. [2022-02-21 04:17:31,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 1289. [2022-02-21 04:17:31,377 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:31,380 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2224 states and 2826 transitions. Second operand has 1289 states, 1289 states have (on average 1.265321955003879) internal successors, (1631), 1288 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,382 INFO L74 IsIncluded]: Start isIncluded. First operand 2224 states and 2826 transitions. Second operand has 1289 states, 1289 states have (on average 1.265321955003879) internal successors, (1631), 1288 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,385 INFO L87 Difference]: Start difference. First operand 2224 states and 2826 transitions. Second operand has 1289 states, 1289 states have (on average 1.265321955003879) internal successors, (1631), 1288 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:31,548 INFO L93 Difference]: Finished difference Result 2224 states and 2826 transitions. [2022-02-21 04:17:31,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2826 transitions. [2022-02-21 04:17:31,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:31,551 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:31,555 INFO L74 IsIncluded]: Start isIncluded. First operand has 1289 states, 1289 states have (on average 1.265321955003879) internal successors, (1631), 1288 states have internal predecessors, (1631), 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 2224 states and 2826 transitions. [2022-02-21 04:17:31,558 INFO L87 Difference]: Start difference. First operand has 1289 states, 1289 states have (on average 1.265321955003879) internal successors, (1631), 1288 states have internal predecessors, (1631), 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 2224 states and 2826 transitions. [2022-02-21 04:17:31,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:31,701 INFO L93 Difference]: Finished difference Result 2224 states and 2826 transitions. [2022-02-21 04:17:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2826 transitions. [2022-02-21 04:17:31,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:31,705 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:31,705 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:31,705 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:31,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1289 states have (on average 1.265321955003879) internal successors, (1631), 1288 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1631 transitions. [2022-02-21 04:17:31,771 INFO L704 BuchiCegarLoop]: Abstraction has 1289 states and 1631 transitions. [2022-02-21 04:17:31,771 INFO L587 BuchiCegarLoop]: Abstraction has 1289 states and 1631 transitions. [2022-02-21 04:17:31,771 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:31,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1289 states and 1631 transitions. [2022-02-21 04:17:31,778 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 902 [2022-02-21 04:17:31,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:31,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:31,779 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:31,779 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, 1, 1, 1, 1] [2022-02-21 04:17:31,779 INFO L791 eck$LassoCheckResult]: Stem: 8012#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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 7935#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 7936#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 7970#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 7745#L83 main_#t~ret52#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 7746#L988 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 7768#L965 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 7723#L377-2 [2022-02-21 04:17:31,779 INFO L793 eck$LassoCheckResult]: Loop: 7723#L377-2 assume !false; 7724#L378 assume test_~splverifierCounter~0#1 < 4; 7911#L379 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 7954#L387 assume !(0 != test_~tmp~6#1); 7955#L387-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 7873#L397 assume !(0 != test_~tmp___0~2#1); 7875#L397-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 8437#L407 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 8436#L415 assume !(0 != test_~tmp___1~0#1); 7730#L415-2 assume { :begin_inline_timeShift } true; 7738#L108 assume !(0 != ~pumpRunning~0); 7739#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 7996#L192 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 8375#L166-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 8420#L140-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 8418#L520-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 8415#L525-3 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 8411#L311-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 8401#L311-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 8394#L317-3 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 8391#L144-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 7959#L132-6 assume { :end_inline_processEnvironment__wrappee__base } true; 7960#L140-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 7921#L166-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 7872#L192-1 assume { :end_inline_processEnvironment } true; 8393#L115-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 7957#L480-5 __utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1; 7958#L1020 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 7992#L512 __utac_acc__Specification3_spec__1_#t~ret54#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret54#1;havoc __utac_acc__Specification3_spec__1_#t~ret54#1; 8513#L1026 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 8511#L1026-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 7994#L125 assume { :end_inline_timeShift } true; 7723#L377-2 [2022-02-21 04:17:31,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:31,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:31,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230203710] [2022-02-21 04:17:31,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:31,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,790 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,800 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1559306339, now seen corresponding path program 1 times [2022-02-21 04:17:31,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:31,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289680144] [2022-02-21 04:17:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:31,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,809 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,816 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:31,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:31,817 INFO L85 PathProgramCache]: Analyzing trace with hash -2110986911, now seen corresponding path program 1 times [2022-02-21 04:17:31,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:31,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409185776] [2022-02-21 04:17:31,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:31,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,829 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:31,845 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:34,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:34 BoogieIcfgContainer [2022-02-21 04:17:34,781 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:34,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:34,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:34,782 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:34,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:26" (3/4) ... [2022-02-21 04:17:34,784 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:34,831 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:34,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:34,833 INFO L158 Benchmark]: Toolchain (without parser) took 9747.81ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 59.3MB in the beginning and 119.7MB in the end (delta: -60.5MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:34,833 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:34,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.03ms. Allocated memory is still 96.5MB. Free memory was 59.1MB in the beginning and 61.3MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:17:34,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.71ms. Allocated memory is still 96.5MB. Free memory was 61.3MB in the beginning and 54.2MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:34,834 INFO L158 Benchmark]: Boogie Preprocessor took 43.54ms. Allocated memory is still 96.5MB. Free memory was 54.2MB in the beginning and 50.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:34,835 INFO L158 Benchmark]: RCFGBuilder took 1035.97ms. Allocated memory is still 96.5MB. Free memory was 50.0MB in the beginning and 39.6MB in the end (delta: 10.4MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:34,835 INFO L158 Benchmark]: BuchiAutomizer took 8082.72ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 39.6MB in the beginning and 122.9MB in the end (delta: -83.2MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:34,835 INFO L158 Benchmark]: Witness Printer took 50.61ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 119.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:34,837 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 0.23ms. Allocated memory is still 96.5MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.03ms. Allocated memory is still 96.5MB. Free memory was 59.1MB in the beginning and 61.3MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.71ms. Allocated memory is still 96.5MB. Free memory was 61.3MB in the beginning and 54.2MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.54ms. Allocated memory is still 96.5MB. Free memory was 54.2MB in the beginning and 50.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1035.97ms. Allocated memory is still 96.5MB. Free memory was 50.0MB in the beginning and 39.6MB in the end (delta: 10.4MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 8082.72ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 39.6MB in the beginning and 122.9MB in the end (delta: -83.2MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. * Witness Printer took 50.61ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 119.7MB 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 1289 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.2s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.7s AutomataMinimizationTime, 3 MinimizatonAttempts, 938 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had 1289 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1972 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1972 mSDsluCounter, 3376 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2119 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 218 IncrementalHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 1257 mSDtfsCounter, 218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25eb0148=0, tmp=0, tmp___0=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, retValue_acc=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, \result=0, retValue_acc=0, retValue_acc=1, \result=1, \result=1, retValue_acc=1, tmp=1, tmp=1, tmp___0=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dfcea08=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a00b7a=0, tmp___2=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76ae4cfe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53fc746a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44b39941=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ddd6592=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@526b357c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d4026a5=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@314ea479=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6338bc15=0, \result=0, tmp=0, head=0, \result=1, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@700bf545=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L437] int waterLevel = 1; [L438] int methaneLevelCritical = 0; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int cleanupTimeShifts = 4; [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp___2)) [L413] tmp___1 = __VERIFIER_nondet_int() [L415] COND FALSE !(\read(tmp___1)) [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L517] int retValue_acc ; [L520] COND TRUE waterLevel < 2 [L521] retValue_acc = 1 [L522] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification3_spec__1() [L1012] int tmp ; [L1013] int tmp___0 ; [L1014] int tmp___1 ; [L1018] CALL, EXPR isMethaneLevelCritical() [L476] int retValue_acc ; [L479] retValue_acc = methaneLevelCritical [L480] return (retValue_acc); [L1018] RET, EXPR isMethaneLevelCritical() [L1018] tmp = isMethaneLevelCritical() [L1020] COND FALSE !(\read(tmp)) [L1024] CALL, EXPR getWaterLevel() [L508] int retValue_acc ; [L511] retValue_acc = waterLevel [L512] return (retValue_acc); [L1024] RET, EXPR getWaterLevel() [L1024] tmp___0 = getWaterLevel() [L1026] COND FALSE !(tmp___0 == 2) [L123] RET __utac_acc__Specification3_spec__1() [L424] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:34,887 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)