./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product36.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_spec4_product36.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 cb82edc0720115a7daf634e8ab19e02bd974ec3bbe9487e9c9b9a9d3ab6ca10d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:51,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:51,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:51,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:51,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:51,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:51,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:51,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:51,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:51,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:51,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:51,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:51,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:51,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:51,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:51,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:51,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:51,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:51,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:51,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:51,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:51,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:51,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:51,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:51,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:51,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:51,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:51,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:51,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:51,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:51,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:51,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:51,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:51,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:51,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:51,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:51,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:51,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:51,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:51,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:51,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:51,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:51,900 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:51,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:51,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:51,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:51,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:51,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:51,902 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:51,903 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:51,903 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:51,903 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:51,904 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:51,904 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:51,904 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:51,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:51,904 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:51,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:51,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:51,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:51,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:51,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:51,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:51,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:51,905 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:51,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:51,906 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:51,906 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:51,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:51,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:51,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:51,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:51,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:51,908 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:51,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb82edc0720115a7daf634e8ab19e02bd974ec3bbe9487e9c9b9a9d3ab6ca10d [2022-02-21 04:17:52,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:52,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:52,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:52,164 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:52,165 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:52,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2022-02-21 04:17:52,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/314524b52/e3c360ee061d4d66af0963e3da6d11a4/FLAG5b5584c71 [2022-02-21 04:17:52,592 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:52,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2022-02-21 04:17:52,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/314524b52/e3c360ee061d4d66af0963e3da6d11a4/FLAG5b5584c71 [2022-02-21 04:17:52,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/314524b52/e3c360ee061d4d66af0963e3da6d11a4 [2022-02-21 04:17:52,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:52,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:52,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:52,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:52,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:52,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:52" (1/1) ... [2022-02-21 04:17:52,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d46069c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:52, skipping insertion in model container [2022-02-21 04:17:52,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:52" (1/1) ... [2022-02-21 04:17:52,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:53,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:53,202 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_spec4_product36.cil.c[6627,6640] [2022-02-21 04:17:53,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:53,272 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:53,292 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_spec4_product36.cil.c[6627,6640] [2022-02-21 04:17:53,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:53,337 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:53,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53 WrapperNode [2022-02-21 04:17:53,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:53,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:53,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:53,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:53,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,414 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 49, calls inlined = 50, statements flattened = 399 [2022-02-21 04:17:53,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:53,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:53,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:53,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:53,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:53,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:53,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:53,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:53,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (1/1) ... [2022-02-21 04:17:53,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:53,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:53,475 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 04:17:53,476 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 04:17:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:53,604 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:53,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:54,043 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:54,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:54,050 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:54,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:54 BoogieIcfgContainer [2022-02-21 04:17:54,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:54,054 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:54,054 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:54,057 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:54,057 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:54,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:52" (1/3) ... [2022-02-21 04:17:54,060 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a3a6f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:54, skipping insertion in model container [2022-02-21 04:17:54,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:54,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:53" (2/3) ... [2022-02-21 04:17:54,060 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a3a6f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:54, skipping insertion in model container [2022-02-21 04:17:54,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:54,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:54" (3/3) ... [2022-02-21 04:17:54,062 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2022-02-21 04:17:54,097 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:54,098 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:54,098 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:54,098 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:54,098 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:54,098 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:54,098 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:54,098 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:54,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 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 04:17:54,153 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2022-02-21 04:17:54,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:54,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:54,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:54,162 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 04:17:54,162 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:54,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 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 04:17:54,177 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2022-02-21 04:17:54,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:54,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:54,178 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:54,178 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 04:17:54,186 INFO L791 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 36#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret19#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 17#L430true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 19#L423true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 69#L438true main_#t~ret19#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret19#1;havoc main_#t~ret19#1; 12#L394true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 82#L368true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 37#L66-2true [2022-02-21 04:17:54,186 INFO L793 eck$LassoCheckResult]: Loop: 37#L66-2true assume !false; 93#L67true assume test_~splverifierCounter~0#1 < 4; 98#L68true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 53#L76true assume !(0 != test_~tmp~0#1); 96#L76-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 4#L86true assume !(0 != test_~tmp___0~0#1); 108#L86-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 88#L96true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 51#L305true assume { :end_inline_startSystem } true; 106#L104-2true assume { :begin_inline_timeShift } true; 39#L141true assume !(0 != ~pumpRunning~0); 91#L141-2true assume !(0 != ~systemActive~0); 81#L148-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 30#L894true __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 87#L921true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 68#L921-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 16#L158true assume { :end_inline_timeShift } true; 37#L66-2true [2022-02-21 04:17:54,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:54,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:54,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:54,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12039405] [2022-02-21 04:17:54,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:54,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:54,324 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:54,358 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:54,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:54,360 INFO L85 PathProgramCache]: Analyzing trace with hash 489247553, now seen corresponding path program 1 times [2022-02-21 04:17:54,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:54,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224789355] [2022-02-21 04:17:54,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:54,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:54,445 INFO L290 TraceCheckUtils]: 0: Hoare triple {116#true} assume !false; {116#true} is VALID [2022-02-21 04:17:54,445 INFO L290 TraceCheckUtils]: 1: Hoare triple {116#true} assume test_~splverifierCounter~0#1 < 4; {116#true} is VALID [2022-02-21 04:17:54,445 INFO L290 TraceCheckUtils]: 2: Hoare triple {116#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {116#true} is VALID [2022-02-21 04:17:54,445 INFO L290 TraceCheckUtils]: 3: Hoare triple {116#true} assume !(0 != test_~tmp~0#1); {116#true} is VALID [2022-02-21 04:17:54,446 INFO L290 TraceCheckUtils]: 4: Hoare triple {116#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {116#true} is VALID [2022-02-21 04:17:54,446 INFO L290 TraceCheckUtils]: 5: Hoare triple {116#true} assume !(0 != test_~tmp___0~0#1); {116#true} is VALID [2022-02-21 04:17:54,446 INFO L290 TraceCheckUtils]: 6: Hoare triple {116#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {116#true} is VALID [2022-02-21 04:17:54,447 INFO L290 TraceCheckUtils]: 7: Hoare triple {116#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {118#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:54,448 INFO L290 TraceCheckUtils]: 8: Hoare triple {118#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {118#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:54,448 INFO L290 TraceCheckUtils]: 9: Hoare triple {118#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {118#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:54,449 INFO L290 TraceCheckUtils]: 10: Hoare triple {118#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {118#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:54,449 INFO L290 TraceCheckUtils]: 11: Hoare triple {118#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {117#false} is VALID [2022-02-21 04:17:54,450 INFO L290 TraceCheckUtils]: 12: Hoare triple {117#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {117#false} is VALID [2022-02-21 04:17:54,450 INFO L290 TraceCheckUtils]: 13: Hoare triple {117#false} __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; {117#false} is VALID [2022-02-21 04:17:54,450 INFO L290 TraceCheckUtils]: 14: Hoare triple {117#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); {117#false} is VALID [2022-02-21 04:17:54,450 INFO L290 TraceCheckUtils]: 15: Hoare triple {117#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {117#false} is VALID [2022-02-21 04:17:54,450 INFO L290 TraceCheckUtils]: 16: Hoare triple {117#false} assume { :end_inline_timeShift } true; {117#false} is VALID [2022-02-21 04:17:54,451 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 04:17:54,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:54,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224789355] [2022-02-21 04:17:54,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224789355] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:54,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:54,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:54,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389931867] [2022-02-21 04:17:54,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:54,457 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:54,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:54,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:54,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:54,489 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.3761467889908257) internal successors, (150), 109 states have internal predecessors, (150), 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 04:17:54,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:54,707 INFO L93 Difference]: Finished difference Result 205 states and 267 transitions. [2022-02-21 04:17:54,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:54,720 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 04:17:54,741 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 04:17:54,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 205 states and 267 transitions. [2022-02-21 04:17:54,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2022-02-21 04:17:54,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 205 states to 185 states and 246 transitions. [2022-02-21 04:17:54,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 185 [2022-02-21 04:17:54,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 185 [2022-02-21 04:17:54,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 185 states and 246 transitions. [2022-02-21 04:17:54,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:54,766 INFO L681 BuchiCegarLoop]: Abstraction has 185 states and 246 transitions. [2022-02-21 04:17:54,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states and 246 transitions. [2022-02-21 04:17:54,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2022-02-21 04:17:54,789 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:54,790 INFO L82 GeneralOperation]: Start isEquivalent. First operand 185 states and 246 transitions. Second operand has 182 states, 182 states have (on average 1.3296703296703296) internal successors, (242), 181 states have internal predecessors, (242), 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 04:17:54,791 INFO L74 IsIncluded]: Start isIncluded. First operand 185 states and 246 transitions. Second operand has 182 states, 182 states have (on average 1.3296703296703296) internal successors, (242), 181 states have internal predecessors, (242), 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 04:17:54,792 INFO L87 Difference]: Start difference. First operand 185 states and 246 transitions. Second operand has 182 states, 182 states have (on average 1.3296703296703296) internal successors, (242), 181 states have internal predecessors, (242), 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 04:17:54,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:54,797 INFO L93 Difference]: Finished difference Result 185 states and 246 transitions. [2022-02-21 04:17:54,797 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 246 transitions. [2022-02-21 04:17:54,798 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:54,799 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:54,799 INFO L74 IsIncluded]: Start isIncluded. First operand has 182 states, 182 states have (on average 1.3296703296703296) internal successors, (242), 181 states have internal predecessors, (242), 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 185 states and 246 transitions. [2022-02-21 04:17:54,800 INFO L87 Difference]: Start difference. First operand has 182 states, 182 states have (on average 1.3296703296703296) internal successors, (242), 181 states have internal predecessors, (242), 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 185 states and 246 transitions. [2022-02-21 04:17:54,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:54,804 INFO L93 Difference]: Finished difference Result 185 states and 246 transitions. [2022-02-21 04:17:54,804 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 246 transitions. [2022-02-21 04:17:54,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:54,805 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:54,805 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:54,805 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:54,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 182 states have (on average 1.3296703296703296) internal successors, (242), 181 states have internal predecessors, (242), 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 04:17:54,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 242 transitions. [2022-02-21 04:17:54,824 INFO L704 BuchiCegarLoop]: Abstraction has 182 states and 242 transitions. [2022-02-21 04:17:54,824 INFO L587 BuchiCegarLoop]: Abstraction has 182 states and 242 transitions. [2022-02-21 04:17:54,824 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:54,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 182 states and 242 transitions. [2022-02-21 04:17:54,826 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 129 [2022-02-21 04:17:54,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:54,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:54,827 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:54,827 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] [2022-02-21 04:17:54,827 INFO L791 eck$LassoCheckResult]: Stem: 422#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 374#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret19#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 350#L430 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 351#L423 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 352#L438 main_#t~ret19#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret19#1;havoc main_#t~ret19#1; 339#L394 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 340#L368 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 347#L66-2 [2022-02-21 04:17:54,827 INFO L793 eck$LassoCheckResult]: Loop: 347#L66-2 assume !false; 375#L67 assume test_~splverifierCounter~0#1 < 4; 421#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 396#L76 assume !(0 != test_~tmp~0#1); 398#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 324#L86 assume !(0 != test_~tmp___0~0#1); 326#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 417#L96 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 418#L104 assume !(0 != test_~tmp___1~0#1); 394#L104-2 assume { :begin_inline_timeShift } true; 457#L141 assume !(0 != ~pumpRunning~0); 420#L141-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 388#L173 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 345#L165-1 assume { :end_inline_processEnvironment__wrappee__base } true; 332#L173-1 assume { :end_inline_processEnvironment } true; 414#L148-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 368#L894 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 369#L921 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 399#L921-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 346#L158 assume { :end_inline_timeShift } true; 347#L66-2 [2022-02-21 04:17:54,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:54,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:54,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:54,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116871488] [2022-02-21 04:17:54,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:54,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:54,844 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:54,884 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:54,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:54,885 INFO L85 PathProgramCache]: Analyzing trace with hash 586212837, now seen corresponding path program 1 times [2022-02-21 04:17:54,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:54,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047369187] [2022-02-21 04:17:54,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:54,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:54,910 INFO L290 TraceCheckUtils]: 0: Hoare triple {881#true} assume !false; {881#true} is VALID [2022-02-21 04:17:54,910 INFO L290 TraceCheckUtils]: 1: Hoare triple {881#true} assume test_~splverifierCounter~0#1 < 4; {881#true} is VALID [2022-02-21 04:17:54,910 INFO L290 TraceCheckUtils]: 2: Hoare triple {881#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {881#true} is VALID [2022-02-21 04:17:54,910 INFO L290 TraceCheckUtils]: 3: Hoare triple {881#true} assume !(0 != test_~tmp~0#1); {881#true} is VALID [2022-02-21 04:17:54,910 INFO L290 TraceCheckUtils]: 4: Hoare triple {881#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {881#true} is VALID [2022-02-21 04:17:54,910 INFO L290 TraceCheckUtils]: 5: Hoare triple {881#true} assume !(0 != test_~tmp___0~0#1); {881#true} is VALID [2022-02-21 04:17:54,911 INFO L290 TraceCheckUtils]: 6: Hoare triple {881#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {881#true} is VALID [2022-02-21 04:17:54,911 INFO L290 TraceCheckUtils]: 7: Hoare triple {881#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {881#true} is VALID [2022-02-21 04:17:54,911 INFO L290 TraceCheckUtils]: 8: Hoare triple {881#true} assume !(0 != test_~tmp___1~0#1); {881#true} is VALID [2022-02-21 04:17:54,911 INFO L290 TraceCheckUtils]: 9: Hoare triple {881#true} assume { :begin_inline_timeShift } true; {881#true} is VALID [2022-02-21 04:17:54,912 INFO L290 TraceCheckUtils]: 10: Hoare triple {881#true} assume !(0 != ~pumpRunning~0); {883#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:54,912 INFO L290 TraceCheckUtils]: 11: Hoare triple {883#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {883#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:54,912 INFO L290 TraceCheckUtils]: 12: Hoare triple {883#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {882#false} is VALID [2022-02-21 04:17:54,913 INFO L290 TraceCheckUtils]: 13: Hoare triple {882#false} assume { :end_inline_processEnvironment__wrappee__base } true; {882#false} is VALID [2022-02-21 04:17:54,913 INFO L290 TraceCheckUtils]: 14: Hoare triple {882#false} assume { :end_inline_processEnvironment } true; {882#false} is VALID [2022-02-21 04:17:54,913 INFO L290 TraceCheckUtils]: 15: Hoare triple {882#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {882#false} is VALID [2022-02-21 04:17:54,913 INFO L290 TraceCheckUtils]: 16: Hoare triple {882#false} __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; {882#false} is VALID [2022-02-21 04:17:54,913 INFO L290 TraceCheckUtils]: 17: Hoare triple {882#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); {882#false} is VALID [2022-02-21 04:17:54,913 INFO L290 TraceCheckUtils]: 18: Hoare triple {882#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {882#false} is VALID [2022-02-21 04:17:54,913 INFO L290 TraceCheckUtils]: 19: Hoare triple {882#false} assume { :end_inline_timeShift } true; {882#false} is VALID [2022-02-21 04:17:54,914 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 04:17:54,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:54,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047369187] [2022-02-21 04:17:54,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047369187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:54,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:54,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:54,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541290529] [2022-02-21 04:17:54,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:54,915 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:54,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:54,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:54,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:54,916 INFO L87 Difference]: Start difference. First operand 182 states and 242 transitions. cyclomatic complexity: 63 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:55,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:55,065 INFO L93 Difference]: Finished difference Result 288 states and 371 transitions. [2022-02-21 04:17:55,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:55,066 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:55,080 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:55,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 288 states and 371 transitions. [2022-02-21 04:17:55,089 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2022-02-21 04:17:55,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 288 states to 288 states and 371 transitions. [2022-02-21 04:17:55,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 288 [2022-02-21 04:17:55,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 288 [2022-02-21 04:17:55,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 288 states and 371 transitions. [2022-02-21 04:17:55,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:55,100 INFO L681 BuchiCegarLoop]: Abstraction has 288 states and 371 transitions. [2022-02-21 04:17:55,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states and 371 transitions. [2022-02-21 04:17:55,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2022-02-21 04:17:55,108 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:55,109 INFO L82 GeneralOperation]: Start isEquivalent. First operand 288 states and 371 transitions. Second operand has 288 states, 288 states have (on average 1.2881944444444444) internal successors, (371), 287 states have internal predecessors, (371), 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 04:17:55,110 INFO L74 IsIncluded]: Start isIncluded. First operand 288 states and 371 transitions. Second operand has 288 states, 288 states have (on average 1.2881944444444444) internal successors, (371), 287 states have internal predecessors, (371), 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 04:17:55,110 INFO L87 Difference]: Start difference. First operand 288 states and 371 transitions. Second operand has 288 states, 288 states have (on average 1.2881944444444444) internal successors, (371), 287 states have internal predecessors, (371), 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 04:17:55,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:55,117 INFO L93 Difference]: Finished difference Result 288 states and 371 transitions. [2022-02-21 04:17:55,117 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 371 transitions. [2022-02-21 04:17:55,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:55,118 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:55,119 INFO L74 IsIncluded]: Start isIncluded. First operand has 288 states, 288 states have (on average 1.2881944444444444) internal successors, (371), 287 states have internal predecessors, (371), 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 288 states and 371 transitions. [2022-02-21 04:17:55,120 INFO L87 Difference]: Start difference. First operand has 288 states, 288 states have (on average 1.2881944444444444) internal successors, (371), 287 states have internal predecessors, (371), 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 288 states and 371 transitions. [2022-02-21 04:17:55,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:55,141 INFO L93 Difference]: Finished difference Result 288 states and 371 transitions. [2022-02-21 04:17:55,141 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 371 transitions. [2022-02-21 04:17:55,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:55,142 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:55,142 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:55,142 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:55,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 288 states have (on average 1.2881944444444444) internal successors, (371), 287 states have internal predecessors, (371), 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 04:17:55,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 371 transitions. [2022-02-21 04:17:55,150 INFO L704 BuchiCegarLoop]: Abstraction has 288 states and 371 transitions. [2022-02-21 04:17:55,150 INFO L587 BuchiCegarLoop]: Abstraction has 288 states and 371 transitions. [2022-02-21 04:17:55,151 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:55,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 371 transitions. [2022-02-21 04:17:55,152 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2022-02-21 04:17:55,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:55,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:55,153 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:55,153 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] [2022-02-21 04:17:55,153 INFO L791 eck$LassoCheckResult]: Stem: 1276#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1224#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret19#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1199#L430 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1200#L423 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1201#L438 main_#t~ret19#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret19#1;havoc main_#t~ret19#1; 1187#L394 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1188#L368 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1267#L66-2 [2022-02-21 04:17:55,153 INFO L793 eck$LassoCheckResult]: Loop: 1267#L66-2 assume !false; 1297#L67 assume test_~splverifierCounter~0#1 < 4; 1344#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1341#L76 assume !(0 != test_~tmp~0#1); 1336#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1172#L86 assume !(0 != test_~tmp___0~0#1); 1174#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1270#L96 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1202#L104 assume !(0 != test_~tmp___1~0#1); 1203#L104-2 assume { :begin_inline_timeShift } true; 1230#L141 assume !(0 != ~pumpRunning~0); 1231#L141-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1370#L173 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1369#L902 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1368#L907 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 1367#L275 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1366#L275-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1365#L281 processEnvironment_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 1363#L177 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1362#L165 assume { :end_inline_processEnvironment__wrappee__base } true; 1360#L173-1 assume { :end_inline_processEnvironment } true; 1358#L148-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret49#1, __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1308#L894 __utac_acc__Specification4_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret49#1;havoc __utac_acc__Specification4_spec__1_#t~ret49#1; 1309#L921 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 1301#L921-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1302#L158 assume { :end_inline_timeShift } true; 1267#L66-2 [2022-02-21 04:17:55,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:55,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:55,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85782899] [2022-02-21 04:17:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:55,167 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:55,180 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:55,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:55,181 INFO L85 PathProgramCache]: Analyzing trace with hash -45060083, now seen corresponding path program 1 times [2022-02-21 04:17:55,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:55,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557443559] [2022-02-21 04:17:55,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:55,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:55,191 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:55,198 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:55,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:55,199 INFO L85 PathProgramCache]: Analyzing trace with hash -171501359, now seen corresponding path program 1 times [2022-02-21 04:17:55,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:55,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618139182] [2022-02-21 04:17:55,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:55,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:55,221 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:55,245 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:57,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:57 BoogieIcfgContainer [2022-02-21 04:17:57,885 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:57,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:57,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:57,886 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:57,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:54" (3/4) ... [2022-02-21 04:17:57,888 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:57,927 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:57,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:57,929 INFO L158 Benchmark]: Toolchain (without parser) took 4971.80ms. Allocated memory was 111.1MB in the beginning and 199.2MB in the end (delta: 88.1MB). Free memory was 74.8MB in the beginning and 125.1MB in the end (delta: -50.4MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:57,929 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory was 83.7MB in the beginning and 83.6MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:57,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.10ms. Allocated memory is still 111.1MB. Free memory was 74.6MB in the beginning and 74.3MB in the end (delta: 281.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:17:57,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.58ms. Allocated memory is still 111.1MB. Free memory was 74.3MB in the beginning and 71.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:57,930 INFO L158 Benchmark]: Boogie Preprocessor took 32.09ms. Allocated memory is still 111.1MB. Free memory was 71.3MB in the beginning and 69.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:57,930 INFO L158 Benchmark]: RCFGBuilder took 605.47ms. Allocated memory is still 111.1MB. Free memory was 69.2MB in the beginning and 49.2MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:57,930 INFO L158 Benchmark]: BuchiAutomizer took 3830.69ms. Allocated memory was 111.1MB in the beginning and 199.2MB in the end (delta: 88.1MB). Free memory was 49.2MB in the beginning and 127.2MB in the end (delta: -78.1MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:57,930 INFO L158 Benchmark]: Witness Printer took 42.16ms. Allocated memory is still 199.2MB. Free memory was 127.2MB in the beginning and 125.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:57,932 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 0.18ms. Allocated memory is still 111.1MB. Free memory was 83.7MB in the beginning and 83.6MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.10ms. Allocated memory is still 111.1MB. Free memory was 74.6MB in the beginning and 74.3MB in the end (delta: 281.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.58ms. Allocated memory is still 111.1MB. Free memory was 74.3MB in the beginning and 71.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.09ms. Allocated memory is still 111.1MB. Free memory was 71.3MB in the beginning and 69.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 605.47ms. Allocated memory is still 111.1MB. Free memory was 69.2MB in the beginning and 49.2MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3830.69ms. Allocated memory was 111.1MB in the beginning and 199.2MB in the end (delta: 88.1MB). Free memory was 49.2MB in the beginning and 127.2MB in the end (delta: -78.1MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. * Witness Printer took 42.16ms. Allocated memory is still 199.2MB. Free memory was 127.2MB in the beginning and 125.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 288 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 288 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 230 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 230 mSDsluCounter, 474 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 195 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 279 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18e7895e=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72dd5591=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fc18f91=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70905bee=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, tmp=1, tmp=1, retValue_acc=1, retValue_acc=1, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16f2f659=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64a2bed9=0, tmp___2=0, tmp=0, tmp=1, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61df8e3e=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55061218=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58e74db6=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 66]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L133] int pumpRunning = 0; [L134] int systemActive = 1; [L309] int cleanupTimeShifts = 4; [L621] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L819] int waterLevel = 1; [L820] int methaneLevelCritical = 0; [L385] int retValue_acc ; [L386] int tmp ; [L390] FCALL select_helpers() [L391] FCALL select_features() [L392] CALL, EXPR valid_product() [L434] int retValue_acc ; [L437] retValue_acc = 1 [L438] return (retValue_acc); [L392] RET, EXPR valid_product() [L392] tmp = valid_product() [L394] COND TRUE \read(tmp) [L396] FCALL setup() [L397] CALL runTest() [L376] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L102] tmp___1 = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp___1)) [L113] CALL timeShift() [L141] COND FALSE !(\read(pumpRunning)) [L148] COND TRUE \read(systemActive) [L150] CALL processEnvironment() [L170] int tmp ; [L173] COND TRUE ! pumpRunning [L175] CALL, EXPR isHighWaterLevel() [L267] int retValue_acc ; [L268] int tmp ; [L269] int tmp___0 ; [L273] CALL, EXPR isHighWaterSensorDry() [L899] int retValue_acc ; [L902] COND TRUE waterLevel < 2 [L903] retValue_acc = 1 [L904] return (retValue_acc); [L273] RET, EXPR isHighWaterSensorDry() [L273] tmp = isHighWaterSensorDry() [L275] COND TRUE \read(tmp) [L276] tmp___0 = 0 [L280] retValue_acc = tmp___0 [L281] return (retValue_acc); [L175] RET, EXPR isHighWaterLevel() [L175] tmp = isHighWaterLevel() [L177] COND FALSE !(\read(tmp)) [L183] FCALL processEnvironment__wrappee__base() [L150] RET processEnvironment() [L156] CALL __utac_acc__Specification4_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L919] CALL, EXPR getWaterLevel() [L890] int retValue_acc ; [L893] retValue_acc = waterLevel [L894] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp = getWaterLevel() [L921] COND FALSE !(tmp == 0) [L156] RET __utac_acc__Specification4_spec__1() [L113] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:57,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)