./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product39.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_product39.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 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:03,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:03,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:03,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:03,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:03,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:03,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:03,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:03,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:03,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:03,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:03,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:03,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:03,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:03,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:03,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:03,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:03,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:03,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:03,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:03,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:03,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:03,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:03,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:03,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:03,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:03,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:03,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:03,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:03,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:03,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:03,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:03,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:03,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:03,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:03,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:03,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:03,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:03,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:03,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:03,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:03,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:03,897 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:03,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:03,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:03,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:03,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:03,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:03,899 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:03,899 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:03,899 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:03,900 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:03,900 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:03,900 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:03,901 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:03,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:03,901 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:03,901 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:03,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:03,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:03,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:03,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:03,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:03,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:03,902 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:03,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:03,902 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:03,902 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:03,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:03,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:03,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:03,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:03,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:03,904 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:03,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 [2022-02-21 04:17:04,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:04,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:04,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:04,113 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:04,113 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:04,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2022-02-21 04:17:04,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/234013d4a/067d8ce69a7e4518adb5216c764d1ea3/FLAG5e43bc2bd [2022-02-21 04:17:04,502 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:04,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2022-02-21 04:17:04,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/234013d4a/067d8ce69a7e4518adb5216c764d1ea3/FLAG5e43bc2bd [2022-02-21 04:17:04,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/234013d4a/067d8ce69a7e4518adb5216c764d1ea3 [2022-02-21 04:17:04,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:04,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:04,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:04,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:04,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:04,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d17099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04, skipping insertion in model container [2022-02-21 04:17:04,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:04,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:05,100 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_product39.cil.c[7086,7099] [2022-02-21 04:17:05,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:05,148 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:05,173 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_product39.cil.c[7086,7099] [2022-02-21 04:17:05,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:05,211 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:05,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05 WrapperNode [2022-02-21 04:17:05,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:05,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:05,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:05,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:05,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,278 INFO L137 Inliner]: procedures = 54, calls = 156, calls flagged for inlining = 53, calls inlined = 82, statements flattened = 621 [2022-02-21 04:17:05,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:05,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:05,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:05,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:05,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:05,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:05,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:05,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:05,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (1/1) ... [2022-02-21 04:17:05,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:05,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:05,340 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 04:17:05,359 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 04:17:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:05,427 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:05,428 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:05,811 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:05,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:05,819 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:05,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:05 BoogieIcfgContainer [2022-02-21 04:17:05,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:05,827 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:05,827 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:05,830 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:05,830 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:05,831 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:04" (1/3) ... [2022-02-21 04:17:05,832 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b4331d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:05, skipping insertion in model container [2022-02-21 04:17:05,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:05,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:05" (2/3) ... [2022-02-21 04:17:05,832 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b4331d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:05, skipping insertion in model container [2022-02-21 04:17:05,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:05,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:05" (3/3) ... [2022-02-21 04:17:05,833 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2022-02-21 04:17:05,861 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:05,862 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:05,862 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:05,862 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:05,862 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:05,862 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:05,862 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:05,862 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:05,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 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 04:17:05,961 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2022-02-21 04:17:05,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:05,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:05,967 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:05,968 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:05,968 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:05,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 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 04:17:05,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2022-02-21 04:17:05,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:05,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:05,999 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:05,999 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:06,006 INFO L791 eck$LassoCheckResult]: Stem: 152#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 75#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 157#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; 26#L83true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 104#L914true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 89#L891true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 134#L400-2true [2022-02-21 04:17:06,007 INFO L793 eck$LassoCheckResult]: Loop: 134#L400-2true assume !false; 11#L401true assume test_~splverifierCounter~0#1 < 4; 114#L402true test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 124#L410true assume !(0 != test_~tmp~3#1); 7#L410-2true test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 45#L420true assume !(0 != test_~tmp___0~1#1); 10#L420-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 21#L430true assume 0 != test_~tmp___2~0#1; 71#L436-2true assume { :begin_inline_timeShift } true; 32#L203true assume !(0 != ~pumpRunning~0); 84#L203-2true assume !(0 != ~systemActive~0); 35#L210-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 42#L138-1true __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 111#L937true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 142#L943-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 80#L220true assume { :end_inline_timeShift } true; 134#L400-2true [2022-02-21 04:17:06,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:06,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381339535] [2022-02-21 04:17:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,145 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,186 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,189 INFO L85 PathProgramCache]: Analyzing trace with hash 169792534, now seen corresponding path program 1 times [2022-02-21 04:17:06,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149099030] [2022-02-21 04:17:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,202 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,217 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:06,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1525211610, now seen corresponding path program 1 times [2022-02-21 04:17:06,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531043230] [2022-02-21 04:17:06,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:06,364 INFO L290 TraceCheckUtils]: 0: Hoare triple {174#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; {176#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:06,364 INFO L290 TraceCheckUtils]: 1: Hoare triple {176#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {176#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:06,365 INFO L290 TraceCheckUtils]: 2: Hoare triple {176#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {176#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:06,365 INFO L290 TraceCheckUtils]: 3: Hoare triple {176#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~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; {177#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:06,366 INFO L290 TraceCheckUtils]: 4: Hoare triple {177#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; {178#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:17:06,366 INFO L290 TraceCheckUtils]: 5: Hoare triple {178#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,367 INFO L290 TraceCheckUtils]: 6: Hoare triple {179#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,367 INFO L290 TraceCheckUtils]: 7: Hoare triple {179#(not (= 0 ~systemActive~0))} assume !false; {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,368 INFO L290 TraceCheckUtils]: 8: Hoare triple {179#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,368 INFO L290 TraceCheckUtils]: 9: Hoare triple {179#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,368 INFO L290 TraceCheckUtils]: 10: Hoare triple {179#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,369 INFO L290 TraceCheckUtils]: 11: Hoare triple {179#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,369 INFO L290 TraceCheckUtils]: 12: Hoare triple {179#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,370 INFO L290 TraceCheckUtils]: 13: Hoare triple {179#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,370 INFO L290 TraceCheckUtils]: 14: Hoare triple {179#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,371 INFO L290 TraceCheckUtils]: 15: Hoare triple {179#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,371 INFO L290 TraceCheckUtils]: 16: Hoare triple {179#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {179#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:06,372 INFO L290 TraceCheckUtils]: 17: Hoare triple {179#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {175#false} is VALID [2022-02-21 04:17:06,372 INFO L290 TraceCheckUtils]: 18: Hoare triple {175#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {175#false} is VALID [2022-02-21 04:17:06,372 INFO L290 TraceCheckUtils]: 19: Hoare triple {175#false} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {175#false} is VALID [2022-02-21 04:17:06,372 INFO L290 TraceCheckUtils]: 20: Hoare triple {175#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {175#false} is VALID [2022-02-21 04:17:06,372 INFO L290 TraceCheckUtils]: 21: Hoare triple {175#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {175#false} is VALID [2022-02-21 04:17:06,372 INFO L290 TraceCheckUtils]: 22: Hoare triple {175#false} assume { :end_inline_timeShift } true; {175#false} is VALID [2022-02-21 04:17:06,373 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 04:17:06,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:06,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531043230] [2022-02-21 04:17:06,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531043230] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:06,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:06,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:06,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560087058] [2022-02-21 04:17:06,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:06,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:06,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:06,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:06,504 INFO L87 Difference]: Start difference. First operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:07,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,264 INFO L93 Difference]: Finished difference Result 389 states and 512 transitions. [2022-02-21 04:17:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:17:07,265 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:07,282 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 04:17:07,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 389 states and 512 transitions. [2022-02-21 04:17:07,301 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 251 [2022-02-21 04:17:07,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 389 states to 359 states and 482 transitions. [2022-02-21 04:17:07,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2022-02-21 04:17:07,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2022-02-21 04:17:07,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 482 transitions. [2022-02-21 04:17:07,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:07,319 INFO L681 BuchiCegarLoop]: Abstraction has 359 states and 482 transitions. [2022-02-21 04:17:07,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 482 transitions. [2022-02-21 04:17:07,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 211. [2022-02-21 04:17:07,343 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:07,344 INFO L82 GeneralOperation]: Start isEquivalent. First operand 359 states and 482 transitions. Second operand has 211 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 210 states have internal predecessors, (283), 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 04:17:07,344 INFO L74 IsIncluded]: Start isIncluded. First operand 359 states and 482 transitions. Second operand has 211 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 210 states have internal predecessors, (283), 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 04:17:07,346 INFO L87 Difference]: Start difference. First operand 359 states and 482 transitions. Second operand has 211 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 210 states have internal predecessors, (283), 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 04:17:07,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,353 INFO L93 Difference]: Finished difference Result 359 states and 482 transitions. [2022-02-21 04:17:07,354 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 482 transitions. [2022-02-21 04:17:07,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:07,355 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:07,356 INFO L74 IsIncluded]: Start isIncluded. First operand has 211 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 210 states have internal predecessors, (283), 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 359 states and 482 transitions. [2022-02-21 04:17:07,356 INFO L87 Difference]: Start difference. First operand has 211 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 210 states have internal predecessors, (283), 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 359 states and 482 transitions. [2022-02-21 04:17:07,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,363 INFO L93 Difference]: Finished difference Result 359 states and 482 transitions. [2022-02-21 04:17:07,363 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 482 transitions. [2022-02-21 04:17:07,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:07,364 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:07,365 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:07,365 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:07,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 210 states have internal predecessors, (283), 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 04:17:07,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 283 transitions. [2022-02-21 04:17:07,369 INFO L704 BuchiCegarLoop]: Abstraction has 211 states and 283 transitions. [2022-02-21 04:17:07,369 INFO L587 BuchiCegarLoop]: Abstraction has 211 states and 283 transitions. [2022-02-21 04:17:07,369 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:07,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 283 transitions. [2022-02-21 04:17:07,370 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2022-02-21 04:17:07,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:07,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:07,371 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:07,371 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:07,371 INFO L791 eck$LassoCheckResult]: Stem: 725#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 650#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 651#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 685#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; 612#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 613#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 704#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 694#L400-2 [2022-02-21 04:17:07,371 INFO L793 eck$LassoCheckResult]: Loop: 694#L400-2 assume !false; 585#L401 assume test_~splverifierCounter~0#1 < 4; 586#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 716#L410 assume !(0 != test_~tmp~3#1); 577#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 578#L420 assume !(0 != test_~tmp___0~1#1); 583#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 584#L430 assume 0 != test_~tmp___2~0#1; 605#L436-2 assume { :begin_inline_timeShift } true; 622#L203 assume !(0 != ~pumpRunning~0); 623#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 698#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 661#L235-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 662#L227-3 assume { :end_inline_processEnvironment__wrappee__base } true; 649#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 633#L261-1 assume { :end_inline_processEnvironment } true; 630#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 631#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 639#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 674#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 693#L220 assume { :end_inline_timeShift } true; 694#L400-2 [2022-02-21 04:17:07,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:07,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:07,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141536663] [2022-02-21 04:17:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:07,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,402 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:07,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:07,403 INFO L85 PathProgramCache]: Analyzing trace with hash -94498944, now seen corresponding path program 1 times [2022-02-21 04:17:07,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:07,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727466749] [2022-02-21 04:17:07,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:07,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:07,418 INFO L290 TraceCheckUtils]: 0: Hoare triple {1507#true} assume !false; {1507#true} is VALID [2022-02-21 04:17:07,418 INFO L290 TraceCheckUtils]: 1: Hoare triple {1507#true} assume test_~splverifierCounter~0#1 < 4; {1507#true} is VALID [2022-02-21 04:17:07,418 INFO L290 TraceCheckUtils]: 2: Hoare triple {1507#true} test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {1507#true} is VALID [2022-02-21 04:17:07,419 INFO L290 TraceCheckUtils]: 3: Hoare triple {1507#true} assume !(0 != test_~tmp~3#1); {1507#true} is VALID [2022-02-21 04:17:07,419 INFO L290 TraceCheckUtils]: 4: Hoare triple {1507#true} test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {1507#true} is VALID [2022-02-21 04:17:07,419 INFO L290 TraceCheckUtils]: 5: Hoare triple {1507#true} assume !(0 != test_~tmp___0~1#1); {1507#true} is VALID [2022-02-21 04:17:07,419 INFO L290 TraceCheckUtils]: 6: Hoare triple {1507#true} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {1507#true} is VALID [2022-02-21 04:17:07,419 INFO L290 TraceCheckUtils]: 7: Hoare triple {1507#true} assume 0 != test_~tmp___2~0#1; {1507#true} is VALID [2022-02-21 04:17:07,419 INFO L290 TraceCheckUtils]: 8: Hoare triple {1507#true} assume { :begin_inline_timeShift } true; {1507#true} is VALID [2022-02-21 04:17:07,420 INFO L290 TraceCheckUtils]: 9: Hoare triple {1507#true} assume !(0 != ~pumpRunning~0); {1509#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:07,420 INFO L290 TraceCheckUtils]: 10: Hoare triple {1509#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {1509#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:07,420 INFO L290 TraceCheckUtils]: 11: Hoare triple {1509#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {1509#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:07,421 INFO L290 TraceCheckUtils]: 12: Hoare triple {1509#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1508#false} is VALID [2022-02-21 04:17:07,421 INFO L290 TraceCheckUtils]: 13: Hoare triple {1508#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1508#false} is VALID [2022-02-21 04:17:07,421 INFO L290 TraceCheckUtils]: 14: Hoare triple {1508#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1508#false} is VALID [2022-02-21 04:17:07,421 INFO L290 TraceCheckUtils]: 15: Hoare triple {1508#false} assume { :end_inline_processEnvironment } true; {1508#false} is VALID [2022-02-21 04:17:07,421 INFO L290 TraceCheckUtils]: 16: Hoare triple {1508#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {1508#false} is VALID [2022-02-21 04:17:07,421 INFO L290 TraceCheckUtils]: 17: Hoare triple {1508#false} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {1508#false} is VALID [2022-02-21 04:17:07,421 INFO L290 TraceCheckUtils]: 18: Hoare triple {1508#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {1508#false} is VALID [2022-02-21 04:17:07,421 INFO L290 TraceCheckUtils]: 19: Hoare triple {1508#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1508#false} is VALID [2022-02-21 04:17:07,422 INFO L290 TraceCheckUtils]: 20: Hoare triple {1508#false} assume { :end_inline_timeShift } true; {1508#false} is VALID [2022-02-21 04:17:07,422 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 04:17:07,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:07,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727466749] [2022-02-21 04:17:07,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727466749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:07,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:07,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:07,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482489941] [2022-02-21 04:17:07,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:07,423 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:07,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:07,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:07,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:07,423 INFO L87 Difference]: Start difference. First operand 211 states and 283 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:17:07,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,592 INFO L93 Difference]: Finished difference Result 267 states and 343 transitions. [2022-02-21 04:17:07,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:07,592 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 04:17:07,604 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:07,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 343 transitions. [2022-02-21 04:17:07,610 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2022-02-21 04:17:07,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 267 states and 343 transitions. [2022-02-21 04:17:07,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2022-02-21 04:17:07,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2022-02-21 04:17:07,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 343 transitions. [2022-02-21 04:17:07,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:07,616 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 343 transitions. [2022-02-21 04:17:07,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 343 transitions. [2022-02-21 04:17:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-02-21 04:17:07,621 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:07,622 INFO L82 GeneralOperation]: Start isEquivalent. First operand 267 states and 343 transitions. Second operand has 267 states, 267 states have (on average 1.2846441947565543) internal successors, (343), 266 states have internal predecessors, (343), 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 04:17:07,622 INFO L74 IsIncluded]: Start isIncluded. First operand 267 states and 343 transitions. Second operand has 267 states, 267 states have (on average 1.2846441947565543) internal successors, (343), 266 states have internal predecessors, (343), 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 04:17:07,623 INFO L87 Difference]: Start difference. First operand 267 states and 343 transitions. Second operand has 267 states, 267 states have (on average 1.2846441947565543) internal successors, (343), 266 states have internal predecessors, (343), 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 04:17:07,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,627 INFO L93 Difference]: Finished difference Result 267 states and 343 transitions. [2022-02-21 04:17:07,627 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 343 transitions. [2022-02-21 04:17:07,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:07,628 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:07,628 INFO L74 IsIncluded]: Start isIncluded. First operand has 267 states, 267 states have (on average 1.2846441947565543) internal successors, (343), 266 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 267 states and 343 transitions. [2022-02-21 04:17:07,629 INFO L87 Difference]: Start difference. First operand has 267 states, 267 states have (on average 1.2846441947565543) internal successors, (343), 266 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 267 states and 343 transitions. [2022-02-21 04:17:07,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,633 INFO L93 Difference]: Finished difference Result 267 states and 343 transitions. [2022-02-21 04:17:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 343 transitions. [2022-02-21 04:17:07,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:07,634 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:07,634 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:07,634 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:07,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.2846441947565543) internal successors, (343), 266 states have internal predecessors, (343), 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 04:17:07,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 343 transitions. [2022-02-21 04:17:07,638 INFO L704 BuchiCegarLoop]: Abstraction has 267 states and 343 transitions. [2022-02-21 04:17:07,638 INFO L587 BuchiCegarLoop]: Abstraction has 267 states and 343 transitions. [2022-02-21 04:17:07,639 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:07,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 343 transitions. [2022-02-21 04:17:07,639 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2022-02-21 04:17:07,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:07,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:07,640 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:07,640 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] [2022-02-21 04:17:07,640 INFO L791 eck$LassoCheckResult]: Stem: 1945#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1851#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1852#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1887#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; 1817#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1818#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1907#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1893#L400-2 [2022-02-21 04:17:07,641 INFO L793 eck$LassoCheckResult]: Loop: 1893#L400-2 assume !false; 1789#L401 assume test_~splverifierCounter~0#1 < 4; 1790#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2042#L410 assume !(0 != test_~tmp~3#1); 2040#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 2038#L420 assume !(0 != test_~tmp___0~1#1); 2036#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 2035#L430 assume 0 != test_~tmp___2~0#1; 1882#L436-2 assume { :begin_inline_timeShift } true; 1823#L203 assume !(0 != ~pumpRunning~0); 1824#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1901#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1863#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1864#L178-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1928#L183-1 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 1779#L363-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1780#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1865#L369-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 1866#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1849#L227-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1850#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1834#L261-1 assume { :end_inline_processEnvironment } true; 1917#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 2031#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 2027#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 2025#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1892#L220 assume { :end_inline_timeShift } true; 1893#L400-2 [2022-02-21 04:17:07,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:07,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:07,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:07,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560694002] [2022-02-21 04:17:07,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:07,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,659 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:07,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:07,660 INFO L85 PathProgramCache]: Analyzing trace with hash 969572470, now seen corresponding path program 1 times [2022-02-21 04:17:07,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:07,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202370317] [2022-02-21 04:17:07,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:07,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:07,679 INFO L290 TraceCheckUtils]: 0: Hoare triple {2583#true} assume !false; {2583#true} is VALID [2022-02-21 04:17:07,680 INFO L290 TraceCheckUtils]: 1: Hoare triple {2583#true} assume test_~splverifierCounter~0#1 < 4; {2583#true} is VALID [2022-02-21 04:17:07,680 INFO L290 TraceCheckUtils]: 2: Hoare triple {2583#true} test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {2583#true} is VALID [2022-02-21 04:17:07,680 INFO L290 TraceCheckUtils]: 3: Hoare triple {2583#true} assume !(0 != test_~tmp~3#1); {2583#true} is VALID [2022-02-21 04:17:07,680 INFO L290 TraceCheckUtils]: 4: Hoare triple {2583#true} test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {2583#true} is VALID [2022-02-21 04:17:07,680 INFO L290 TraceCheckUtils]: 5: Hoare triple {2583#true} assume !(0 != test_~tmp___0~1#1); {2583#true} is VALID [2022-02-21 04:17:07,681 INFO L290 TraceCheckUtils]: 6: Hoare triple {2583#true} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {2583#true} is VALID [2022-02-21 04:17:07,681 INFO L290 TraceCheckUtils]: 7: Hoare triple {2583#true} assume 0 != test_~tmp___2~0#1; {2583#true} is VALID [2022-02-21 04:17:07,681 INFO L290 TraceCheckUtils]: 8: Hoare triple {2583#true} assume { :begin_inline_timeShift } true; {2583#true} is VALID [2022-02-21 04:17:07,681 INFO L290 TraceCheckUtils]: 9: Hoare triple {2583#true} assume !(0 != ~pumpRunning~0); {2583#true} is VALID [2022-02-21 04:17:07,681 INFO L290 TraceCheckUtils]: 10: Hoare triple {2583#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {2583#true} is VALID [2022-02-21 04:17:07,681 INFO L290 TraceCheckUtils]: 11: Hoare triple {2583#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {2583#true} is VALID [2022-02-21 04:17:07,682 INFO L290 TraceCheckUtils]: 12: Hoare triple {2583#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; {2583#true} is VALID [2022-02-21 04:17:07,682 INFO L290 TraceCheckUtils]: 13: Hoare triple {2583#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; {2585#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:17:07,682 INFO L290 TraceCheckUtils]: 14: Hoare triple {2585#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; {2586#(= |ULTIMATE.start_isHighWaterLevel_~tmp~2#1| 0)} is VALID [2022-02-21 04:17:07,683 INFO L290 TraceCheckUtils]: 15: Hoare triple {2586#(= |ULTIMATE.start_isHighWaterLevel_~tmp~2#1| 0)} assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; {2584#false} is VALID [2022-02-21 04:17:07,683 INFO L290 TraceCheckUtils]: 16: Hoare triple {2584#false} isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; {2584#false} is VALID [2022-02-21 04:17:07,683 INFO L290 TraceCheckUtils]: 17: Hoare triple {2584#false} processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; {2584#false} is VALID [2022-02-21 04:17:07,683 INFO L290 TraceCheckUtils]: 18: Hoare triple {2584#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2584#false} is VALID [2022-02-21 04:17:07,684 INFO L290 TraceCheckUtils]: 19: Hoare triple {2584#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2584#false} is VALID [2022-02-21 04:17:07,684 INFO L290 TraceCheckUtils]: 20: Hoare triple {2584#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2584#false} is VALID [2022-02-21 04:17:07,684 INFO L290 TraceCheckUtils]: 21: Hoare triple {2584#false} assume { :end_inline_processEnvironment } true; {2584#false} is VALID [2022-02-21 04:17:07,684 INFO L290 TraceCheckUtils]: 22: Hoare triple {2584#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {2584#false} is VALID [2022-02-21 04:17:07,687 INFO L290 TraceCheckUtils]: 23: Hoare triple {2584#false} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {2584#false} is VALID [2022-02-21 04:17:07,687 INFO L290 TraceCheckUtils]: 24: Hoare triple {2584#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {2584#false} is VALID [2022-02-21 04:17:07,687 INFO L290 TraceCheckUtils]: 25: Hoare triple {2584#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2584#false} is VALID [2022-02-21 04:17:07,687 INFO L290 TraceCheckUtils]: 26: Hoare triple {2584#false} assume { :end_inline_timeShift } true; {2584#false} is VALID [2022-02-21 04:17:07,687 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 04:17:07,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:07,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202370317] [2022-02-21 04:17:07,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202370317] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:07,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:07,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:07,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763821633] [2022-02-21 04:17:07,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:07,688 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:07,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:07,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:17:07,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:17:07,689 INFO L87 Difference]: Start difference. First operand 267 states and 343 transitions. cyclomatic complexity: 79 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 04:17:08,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,142 INFO L93 Difference]: Finished difference Result 763 states and 967 transitions. [2022-02-21 04:17:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:08,142 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 04:17:08,157 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:08,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 763 states and 967 transitions. [2022-02-21 04:17:08,180 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 557 [2022-02-21 04:17:08,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 763 states to 763 states and 967 transitions. [2022-02-21 04:17:08,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 763 [2022-02-21 04:17:08,205 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 763 [2022-02-21 04:17:08,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 763 states and 967 transitions. [2022-02-21 04:17:08,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:08,206 INFO L681 BuchiCegarLoop]: Abstraction has 763 states and 967 transitions. [2022-02-21 04:17:08,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states and 967 transitions. [2022-02-21 04:17:08,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 279. [2022-02-21 04:17:08,217 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:08,217 INFO L82 GeneralOperation]: Start isEquivalent. First operand 763 states and 967 transitions. Second operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 04:17:08,223 INFO L74 IsIncluded]: Start isIncluded. First operand 763 states and 967 transitions. Second operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 04:17:08,224 INFO L87 Difference]: Start difference. First operand 763 states and 967 transitions. Second operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 04:17:08,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,245 INFO L93 Difference]: Finished difference Result 763 states and 967 transitions. [2022-02-21 04:17:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 967 transitions. [2022-02-21 04:17:08,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:08,246 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:08,247 INFO L74 IsIncluded]: Start isIncluded. First operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 763 states and 967 transitions. [2022-02-21 04:17:08,248 INFO L87 Difference]: Start difference. First operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 763 states and 967 transitions. [2022-02-21 04:17:08,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,265 INFO L93 Difference]: Finished difference Result 763 states and 967 transitions. [2022-02-21 04:17:08,265 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 967 transitions. [2022-02-21 04:17:08,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:08,266 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:08,266 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:08,266 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:08,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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 04:17:08,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 355 transitions. [2022-02-21 04:17:08,270 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 355 transitions. [2022-02-21 04:17:08,270 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 355 transitions. [2022-02-21 04:17:08,270 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:08,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 355 transitions. [2022-02-21 04:17:08,271 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2022-02-21 04:17:08,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:08,272 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:08,272 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:08,272 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] [2022-02-21 04:17:08,272 INFO L791 eck$LassoCheckResult]: Stem: 3525#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3431#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 3432#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3468#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; 3392#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 3393#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 3489#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3478#L400-2 [2022-02-21 04:17:08,272 INFO L793 eck$LassoCheckResult]: Loop: 3478#L400-2 assume !false; 3365#L401 assume test_~splverifierCounter~0#1 < 4; 3366#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 3613#L410 assume !(0 != test_~tmp~3#1); 3611#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 3609#L420 assume !(0 != test_~tmp___0~1#1); 3607#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 3606#L430 assume 0 != test_~tmp___2~0#1; 3462#L436-2 assume { :begin_inline_timeShift } true; 3400#L203 assume !(0 != ~pumpRunning~0); 3401#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 3483#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3443#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 3444#L178-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 3520#L183-1 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 3355#L363-3 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 3356#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3448#L369-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 3449#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3429#L227-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3430#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3412#L261-1 assume { :end_inline_processEnvironment } true; 3407#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 3408#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 3418#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 3454#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3477#L220 assume { :end_inline_timeShift } true; 3478#L400-2 [2022-02-21 04:17:08,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:08,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005592337] [2022-02-21 04:17:08,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,280 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,286 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1227737908, now seen corresponding path program 1 times [2022-02-21 04:17:08,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559795043] [2022-02-21 04:17:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:08,317 INFO L290 TraceCheckUtils]: 0: Hoare triple {5163#true} assume !false; {5163#true} is VALID [2022-02-21 04:17:08,317 INFO L290 TraceCheckUtils]: 1: Hoare triple {5163#true} assume test_~splverifierCounter~0#1 < 4; {5163#true} is VALID [2022-02-21 04:17:08,317 INFO L290 TraceCheckUtils]: 2: Hoare triple {5163#true} test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {5163#true} is VALID [2022-02-21 04:17:08,318 INFO L290 TraceCheckUtils]: 3: Hoare triple {5163#true} assume !(0 != test_~tmp~3#1); {5163#true} is VALID [2022-02-21 04:17:08,319 INFO L290 TraceCheckUtils]: 4: Hoare triple {5163#true} test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {5163#true} is VALID [2022-02-21 04:17:08,319 INFO L290 TraceCheckUtils]: 5: Hoare triple {5163#true} assume !(0 != test_~tmp___0~1#1); {5163#true} is VALID [2022-02-21 04:17:08,319 INFO L290 TraceCheckUtils]: 6: Hoare triple {5163#true} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {5163#true} is VALID [2022-02-21 04:17:08,319 INFO L290 TraceCheckUtils]: 7: Hoare triple {5163#true} assume 0 != test_~tmp___2~0#1; {5163#true} is VALID [2022-02-21 04:17:08,320 INFO L290 TraceCheckUtils]: 8: Hoare triple {5163#true} assume { :begin_inline_timeShift } true; {5163#true} is VALID [2022-02-21 04:17:08,321 INFO L290 TraceCheckUtils]: 9: Hoare triple {5163#true} assume !(0 != ~pumpRunning~0); {5163#true} is VALID [2022-02-21 04:17:08,321 INFO L290 TraceCheckUtils]: 10: Hoare triple {5163#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {5163#true} is VALID [2022-02-21 04:17:08,322 INFO L290 TraceCheckUtils]: 11: Hoare triple {5163#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {5163#true} is VALID [2022-02-21 04:17:08,322 INFO L290 TraceCheckUtils]: 12: Hoare triple {5163#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; {5163#true} is VALID [2022-02-21 04:17:08,322 INFO L290 TraceCheckUtils]: 13: Hoare triple {5163#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; {5163#true} is VALID [2022-02-21 04:17:08,322 INFO L290 TraceCheckUtils]: 14: Hoare triple {5163#true} isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; {5163#true} is VALID [2022-02-21 04:17:08,323 INFO L290 TraceCheckUtils]: 15: Hoare triple {5163#true} assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; {5165#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1|)} is VALID [2022-02-21 04:17:08,323 INFO L290 TraceCheckUtils]: 16: Hoare triple {5165#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~0#1|)} isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; {5166#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} is VALID [2022-02-21 04:17:08,323 INFO L290 TraceCheckUtils]: 17: Hoare triple {5166#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; {5167#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~0#1|)} is VALID [2022-02-21 04:17:08,324 INFO L290 TraceCheckUtils]: 18: Hoare triple {5167#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~0#1|)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {5164#false} is VALID [2022-02-21 04:17:08,324 INFO L290 TraceCheckUtils]: 19: Hoare triple {5164#false} assume { :end_inline_processEnvironment__wrappee__base } true; {5164#false} is VALID [2022-02-21 04:17:08,324 INFO L290 TraceCheckUtils]: 20: Hoare triple {5164#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {5164#false} is VALID [2022-02-21 04:17:08,324 INFO L290 TraceCheckUtils]: 21: Hoare triple {5164#false} assume { :end_inline_processEnvironment } true; {5164#false} is VALID [2022-02-21 04:17:08,324 INFO L290 TraceCheckUtils]: 22: Hoare triple {5164#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {5164#false} is VALID [2022-02-21 04:17:08,325 INFO L290 TraceCheckUtils]: 23: Hoare triple {5164#false} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {5164#false} is VALID [2022-02-21 04:17:08,325 INFO L290 TraceCheckUtils]: 24: Hoare triple {5164#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {5164#false} is VALID [2022-02-21 04:17:08,325 INFO L290 TraceCheckUtils]: 25: Hoare triple {5164#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {5164#false} is VALID [2022-02-21 04:17:08,325 INFO L290 TraceCheckUtils]: 26: Hoare triple {5164#false} assume { :end_inline_timeShift } true; {5164#false} is VALID [2022-02-21 04:17:08,325 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 04:17:08,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:08,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559795043] [2022-02-21 04:17:08,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559795043] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:08,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:08,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:08,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694899679] [2022-02-21 04:17:08,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:08,327 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:08,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:08,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:08,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:08,327 INFO L87 Difference]: Start difference. First operand 279 states and 355 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:17:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,923 INFO L93 Difference]: Finished difference Result 703 states and 892 transitions. [2022-02-21 04:17:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:08,923 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 04:17:08,944 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:08,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 703 states and 892 transitions. [2022-02-21 04:17:08,961 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 517 [2022-02-21 04:17:08,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 703 states to 703 states and 892 transitions. [2022-02-21 04:17:08,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 703 [2022-02-21 04:17:08,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 703 [2022-02-21 04:17:08,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 703 states and 892 transitions. [2022-02-21 04:17:08,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:08,977 INFO L681 BuchiCegarLoop]: Abstraction has 703 states and 892 transitions. [2022-02-21 04:17:08,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states and 892 transitions. [2022-02-21 04:17:08,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 297. [2022-02-21 04:17:08,983 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:08,984 INFO L82 GeneralOperation]: Start isEquivalent. First operand 703 states and 892 transitions. Second operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 04:17:08,984 INFO L74 IsIncluded]: Start isIncluded. First operand 703 states and 892 transitions. Second operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 04:17:08,985 INFO L87 Difference]: Start difference. First operand 703 states and 892 transitions. Second operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 04:17:09,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:09,000 INFO L93 Difference]: Finished difference Result 703 states and 892 transitions. [2022-02-21 04:17:09,000 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 892 transitions. [2022-02-21 04:17:09,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:09,001 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:09,002 INFO L74 IsIncluded]: Start isIncluded. First operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 703 states and 892 transitions. [2022-02-21 04:17:09,002 INFO L87 Difference]: Start difference. First operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 703 states and 892 transitions. [2022-02-21 04:17:09,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:09,024 INFO L93 Difference]: Finished difference Result 703 states and 892 transitions. [2022-02-21 04:17:09,024 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 892 transitions. [2022-02-21 04:17:09,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:09,025 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:09,025 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:09,025 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:09,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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 04:17:09,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 373 transitions. [2022-02-21 04:17:09,031 INFO L704 BuchiCegarLoop]: Abstraction has 297 states and 373 transitions. [2022-02-21 04:17:09,031 INFO L587 BuchiCegarLoop]: Abstraction has 297 states and 373 transitions. [2022-02-21 04:17:09,031 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:17:09,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 373 transitions. [2022-02-21 04:17:09,033 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2022-02-21 04:17:09,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:09,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:09,033 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:09,034 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] [2022-02-21 04:17:09,034 INFO L791 eck$LassoCheckResult]: Stem: 6050#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 5951#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 5952#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5990#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; 5913#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 5914#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 6010#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5996#L400-2 [2022-02-21 04:17:09,034 INFO L793 eck$LassoCheckResult]: Loop: 5996#L400-2 assume !false; 5889#L401 assume test_~splverifierCounter~0#1 < 4; 5890#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 6172#L410 assume !(0 != test_~tmp~3#1); 6170#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 6168#L420 assume !(0 != test_~tmp___0~1#1); 6166#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 6165#L430 assume 0 != test_~tmp___2~0#1; 5984#L436-2 assume { :begin_inline_timeShift } true; 5985#L203 assume !(0 != ~pumpRunning~0); 6003#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 6004#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 5964#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 5965#L178-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 6042#L183-1 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 6065#L363-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 6026#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 5968#L369-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 5969#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5949#L227-2 assume { :end_inline_processEnvironment__wrappee__base } true; 5950#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6020#L261-1 assume { :end_inline_processEnvironment } true; 5929#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 5930#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 5939#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 5975#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5995#L220 assume { :end_inline_timeShift } true; 5996#L400-2 [2022-02-21 04:17:09,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:17:09,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952442853] [2022-02-21 04:17:09,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,042 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,049 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:09,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1980689720, now seen corresponding path program 1 times [2022-02-21 04:17:09,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358288730] [2022-02-21 04:17:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,054 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:09,058 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:09,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:09,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1938989836, now seen corresponding path program 1 times [2022-02-21 04:17:09,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:09,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730125168] [2022-02-21 04:17:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:09,090 INFO L290 TraceCheckUtils]: 0: Hoare triple {7587#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,091 INFO L290 TraceCheckUtils]: 1: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,091 INFO L290 TraceCheckUtils]: 2: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,091 INFO L290 TraceCheckUtils]: 3: Hoare triple {7589#(= ~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; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,092 INFO L290 TraceCheckUtils]: 4: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,092 INFO L290 TraceCheckUtils]: 5: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,092 INFO L290 TraceCheckUtils]: 6: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,093 INFO L290 TraceCheckUtils]: 7: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume !false; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,093 INFO L290 TraceCheckUtils]: 8: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,093 INFO L290 TraceCheckUtils]: 9: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,093 INFO L290 TraceCheckUtils]: 10: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~3#1); {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,094 INFO L290 TraceCheckUtils]: 11: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,094 INFO L290 TraceCheckUtils]: 12: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,094 INFO L290 TraceCheckUtils]: 13: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,095 INFO L290 TraceCheckUtils]: 14: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,095 INFO L290 TraceCheckUtils]: 15: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,095 INFO L290 TraceCheckUtils]: 16: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,096 INFO L290 TraceCheckUtils]: 17: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,096 INFO L290 TraceCheckUtils]: 18: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,096 INFO L290 TraceCheckUtils]: 19: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,097 INFO L290 TraceCheckUtils]: 20: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,097 INFO L290 TraceCheckUtils]: 21: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,097 INFO L290 TraceCheckUtils]: 22: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,097 INFO L290 TraceCheckUtils]: 23: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,098 INFO L290 TraceCheckUtils]: 24: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,098 INFO L290 TraceCheckUtils]: 25: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,098 INFO L290 TraceCheckUtils]: 26: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,099 INFO L290 TraceCheckUtils]: 27: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,099 INFO L290 TraceCheckUtils]: 28: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {7589#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:09,099 INFO L290 TraceCheckUtils]: 29: Hoare triple {7589#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; {7590#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:09,100 INFO L290 TraceCheckUtils]: 30: Hoare triple {7590#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {7591#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} is VALID [2022-02-21 04:17:09,100 INFO L290 TraceCheckUtils]: 31: Hoare triple {7591#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {7588#false} is VALID [2022-02-21 04:17:09,100 INFO L290 TraceCheckUtils]: 32: Hoare triple {7588#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {7588#false} is VALID [2022-02-21 04:17:09,100 INFO L290 TraceCheckUtils]: 33: Hoare triple {7588#false} assume { :end_inline_timeShift } true; {7588#false} is VALID [2022-02-21 04:17:09,100 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 04:17:09,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:09,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730125168] [2022-02-21 04:17:09,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730125168] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:09,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:09,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:09,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606292437] [2022-02-21 04:17:09,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:09,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:09,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:09,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:09,283 INFO L87 Difference]: Start difference. First operand 297 states and 373 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 04:17:09,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:09,948 INFO L93 Difference]: Finished difference Result 1031 states and 1283 transitions. [2022-02-21 04:17:09,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:09,948 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 04:17:09,971 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:09,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1031 states and 1283 transitions. [2022-02-21 04:17:10,000 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 772 [2022-02-21 04:17:10,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1031 states to 1031 states and 1283 transitions. [2022-02-21 04:17:10,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1031 [2022-02-21 04:17:10,029 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1031 [2022-02-21 04:17:10,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1031 states and 1283 transitions. [2022-02-21 04:17:10,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:10,030 INFO L681 BuchiCegarLoop]: Abstraction has 1031 states and 1283 transitions. [2022-02-21 04:17:10,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states and 1283 transitions. [2022-02-21 04:17:10,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 587. [2022-02-21 04:17:10,037 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:10,038 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1031 states and 1283 transitions. Second operand has 587 states, 587 states have (on average 1.2385008517887564) internal successors, (727), 586 states have internal predecessors, (727), 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 04:17:10,038 INFO L74 IsIncluded]: Start isIncluded. First operand 1031 states and 1283 transitions. Second operand has 587 states, 587 states have (on average 1.2385008517887564) internal successors, (727), 586 states have internal predecessors, (727), 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 04:17:10,039 INFO L87 Difference]: Start difference. First operand 1031 states and 1283 transitions. Second operand has 587 states, 587 states have (on average 1.2385008517887564) internal successors, (727), 586 states have internal predecessors, (727), 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 04:17:10,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:10,066 INFO L93 Difference]: Finished difference Result 1031 states and 1283 transitions. [2022-02-21 04:17:10,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1283 transitions. [2022-02-21 04:17:10,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:10,067 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:10,069 INFO L74 IsIncluded]: Start isIncluded. First operand has 587 states, 587 states have (on average 1.2385008517887564) internal successors, (727), 586 states have internal predecessors, (727), 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 1031 states and 1283 transitions. [2022-02-21 04:17:10,069 INFO L87 Difference]: Start difference. First operand has 587 states, 587 states have (on average 1.2385008517887564) internal successors, (727), 586 states have internal predecessors, (727), 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 1031 states and 1283 transitions. [2022-02-21 04:17:10,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:10,115 INFO L93 Difference]: Finished difference Result 1031 states and 1283 transitions. [2022-02-21 04:17:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1283 transitions. [2022-02-21 04:17:10,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:10,116 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:10,116 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:10,116 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:10,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 587 states have (on average 1.2385008517887564) internal successors, (727), 586 states have internal predecessors, (727), 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 04:17:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 727 transitions. [2022-02-21 04:17:10,128 INFO L704 BuchiCegarLoop]: Abstraction has 587 states and 727 transitions. [2022-02-21 04:17:10,128 INFO L587 BuchiCegarLoop]: Abstraction has 587 states and 727 transitions. [2022-02-21 04:17:10,128 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2022-02-21 04:17:10,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 587 states and 727 transitions. [2022-02-21 04:17:10,130 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 422 [2022-02-21 04:17:10,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:10,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:10,131 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:10,131 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] [2022-02-21 04:17:10,132 INFO L791 eck$LassoCheckResult]: Stem: 8829#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 8711#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 8712#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 8750#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; 8673#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 8674#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 8771#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 8772#L400-2 [2022-02-21 04:17:10,132 INFO L793 eck$LassoCheckResult]: Loop: 8772#L400-2 assume !false; 9091#L401 assume test_~splverifierCounter~0#1 < 4; 9092#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 8806#L410 assume !(0 != test_~tmp~3#1); 8635#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 8636#L420 assume !(0 != test_~tmp___0~1#1); 9208#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 9197#L430 assume 0 != test_~tmp___2~0#1; 8743#L436-2 assume { :begin_inline_timeShift } true; 8744#L203 assume !(0 != ~pumpRunning~0); 9144#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 8839#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 8724#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 8725#L178-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 8815#L183-1 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 9215#L363-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 9213#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 9212#L369-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 9210#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 8709#L227-2 assume { :end_inline_processEnvironment__wrappee__base } true; 8710#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 8691#L261-1 assume { :end_inline_processEnvironment } true; 8779#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 9100#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 9099#L937 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 9098#L170 __utac_acc__Specification3_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 9096#L943 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 9094#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 9093#L220 assume { :end_inline_timeShift } true; 8772#L400-2 [2022-02-21 04:17:10,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2022-02-21 04:17:10,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268562490] [2022-02-21 04:17:10,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,159 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,165 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:10,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash 773562411, now seen corresponding path program 1 times [2022-02-21 04:17:10,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393466433] [2022-02-21 04:17:10,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,182 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,186 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:10,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash 647827687, now seen corresponding path program 1 times [2022-02-21 04:17:10,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:10,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993037] [2022-02-21 04:17:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:10,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,201 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:10,212 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:12,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:12 BoogieIcfgContainer [2022-02-21 04:17:12,640 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:12,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:12,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:12,640 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:12,641 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:05" (3/4) ... [2022-02-21 04:17:12,642 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:12,691 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:12,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:12,693 INFO L158 Benchmark]: Toolchain (without parser) took 7796.01ms. Allocated memory was 94.4MB in the beginning and 182.5MB in the end (delta: 88.1MB). Free memory was 64.1MB in the beginning and 87.2MB in the end (delta: -23.0MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,693 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:12,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.84ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 63.9MB in the beginning and 88.7MB in the end (delta: -24.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.11ms. Allocated memory is still 125.8MB. Free memory was 88.7MB in the beginning and 84.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,694 INFO L158 Benchmark]: Boogie Preprocessor took 27.24ms. Allocated memory is still 125.8MB. Free memory was 84.6MB in the beginning and 82.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,694 INFO L158 Benchmark]: RCFGBuilder took 519.53ms. Allocated memory is still 125.8MB. Free memory was 82.0MB in the beginning and 89.9MB in the end (delta: -7.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,695 INFO L158 Benchmark]: BuchiAutomizer took 6812.68ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 89.9MB in the beginning and 90.2MB in the end (delta: -353.6kB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,695 INFO L158 Benchmark]: Witness Printer took 51.72ms. Allocated memory is still 182.5MB. Free memory was 90.2MB in the beginning and 87.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:12,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.84ms. Allocated memory was 94.4MB in the beginning and 125.8MB in the end (delta: 31.5MB). Free memory was 63.9MB in the beginning and 88.7MB in the end (delta: -24.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.11ms. Allocated memory is still 125.8MB. Free memory was 88.7MB in the beginning and 84.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.24ms. Allocated memory is still 125.8MB. Free memory was 84.6MB in the beginning and 82.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 519.53ms. Allocated memory is still 125.8MB. Free memory was 82.0MB in the beginning and 89.9MB in the end (delta: -7.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6812.68ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 89.9MB in the beginning and 90.2MB in the end (delta: -353.6kB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. * Witness Printer took 51.72ms. Allocated memory is still 182.5MB. Free memory was 90.2MB in the beginning and 87.2MB 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 587 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.7s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.2s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 1482 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 587 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2979 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2979 mSDsluCounter, 4484 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3075 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 298 IncrementalHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 1409 mSDtfsCounter, 298 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 400]: 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@3d690e80=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@265d12b8=0, NULL=1, methaneLevelCritical=0, tmp=1, tmp___0=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@210e9e26=0, retValue_acc=1, retValue_acc=0, retValue_acc=1, \result=1, \result=1, retValue_acc=0, tmp=0, tmp=1, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@775f59d4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@584d6a37=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@281e34a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7823f32=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cc592e4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46d9c8d0=0, \result=0, tmp=0, head=0, retValue_acc=1, \result=1, tmp___1=0, retValue_acc=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fca40d8=29, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e4c9eb6=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 400]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L195] int pumpRunning = 0; [L196] int systemActive = 1; [L635] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L832] int cleanupTimeShifts = 4; [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L391] int splverifierCounter ; [L392] int tmp ; [L393] int tmp___0 ; [L394] int tmp___1 ; [L395] int tmp___2 ; [L398] splverifierCounter = 0 Loop: [L400] COND TRUE 1 [L402] COND TRUE splverifierCounter < 4 [L408] tmp = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp)) [L418] tmp___0 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___0)) [L428] tmp___2 = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp___2) [L445] CALL timeShift() [L203] COND FALSE !(\read(pumpRunning)) [L210] COND TRUE \read(systemActive) [L212] CALL processEnvironment() [L258] int tmp ; [L261] COND FALSE !(\read(pumpRunning)) [L276] CALL processEnvironment__wrappee__highWaterSensor() [L232] int tmp ; [L235] COND TRUE ! pumpRunning [L237] CALL, EXPR isHighWaterLevel() [L355] int retValue_acc ; [L356] int tmp ; [L357] int tmp___0 ; [L361] CALL, EXPR isHighWaterSensorDry() [L175] int retValue_acc ; [L178] COND TRUE waterLevel < 2 [L179] retValue_acc = 1 [L180] return (retValue_acc); [L361] RET, EXPR isHighWaterSensorDry() [L361] tmp = isHighWaterSensorDry() [L363] COND TRUE \read(tmp) [L364] tmp___0 = 0 [L368] retValue_acc = tmp___0 [L369] return (retValue_acc); [L237] RET, EXPR isHighWaterLevel() [L237] tmp = isHighWaterLevel() [L239] COND FALSE !(\read(tmp)) [L245] FCALL processEnvironment__wrappee__base() [L276] RET processEnvironment__wrappee__highWaterSensor() [L212] RET processEnvironment() [L218] CALL __utac_acc__Specification3_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L935] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); [L935] RET, EXPR isMethaneLevelCritical() [L935] tmp = isMethaneLevelCritical() [L937] COND FALSE !(\read(tmp)) [L941] CALL, EXPR getWaterLevel() [L166] int retValue_acc ; [L169] retValue_acc = waterLevel [L170] return (retValue_acc); [L941] RET, EXPR getWaterLevel() [L941] tmp___0 = getWaterLevel() [L943] COND FALSE !(tmp___0 == 2) [L218] RET __utac_acc__Specification3_spec__1() [L445] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:12,743 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)