./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:19:03,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:19:03,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:19:03,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:19:03,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:19:03,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:19:03,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:19:03,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:19:03,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:19:03,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:19:03,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:19:03,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:19:03,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:19:03,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:19:03,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:19:03,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:19:03,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:19:03,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:19:03,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:19:03,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:19:03,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:19:03,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:19:03,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:19:03,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:19:03,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:19:03,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:19:03,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:19:03,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:19:03,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:19:03,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:19:03,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:19:03,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:19:03,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:19:03,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:19:03,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:19:03,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:19:03,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:19:03,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:19:03,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:19:03,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:19:03,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:19:03,985 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:19:04,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:19:04,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:19:04,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:19:04,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:19:04,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:19:04,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:19:04,017 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:19:04,017 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:19:04,018 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:19:04,018 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:19:04,018 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:19:04,019 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:19:04,019 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:19:04,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:19:04,019 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:19:04,019 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:19:04,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:19:04,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:19:04,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:19:04,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:19:04,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:19:04,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:19:04,020 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:19:04,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:19:04,021 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:19:04,021 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:19:04,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:19:04,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:19:04,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:19:04,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:19:04,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:19:04,022 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:19:04,023 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b [2022-02-21 04:19:04,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:19:04,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:19:04,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:19:04,284 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:19:04,285 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:19:04,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2022-02-21 04:19:04,367 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be55e4d8d/7d1fab39f2774719b2dd839ee23ab4f6/FLAGf88d56c89 [2022-02-21 04:19:04,800 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:19:04,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2022-02-21 04:19:04,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be55e4d8d/7d1fab39f2774719b2dd839ee23ab4f6/FLAGf88d56c89 [2022-02-21 04:19:05,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be55e4d8d/7d1fab39f2774719b2dd839ee23ab4f6 [2022-02-21 04:19:05,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:19:05,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:19:05,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:19:05,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:19:05,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:19:05,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6efa209c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05, skipping insertion in model container [2022-02-21 04:19:05,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:19:05,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:19:05,559 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_spec5_product64.cil.c[9626,9639] [2022-02-21 04:19:05,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:19:05,639 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:19:05,690 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_spec5_product64.cil.c[9626,9639] [2022-02-21 04:19:05,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:19:05,724 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:19:05,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05 WrapperNode [2022-02-21 04:19:05,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:19:05,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:19:05,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:19:05,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:19:05,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,811 INFO L137 Inliner]: procedures = 61, calls = 166, calls flagged for inlining = 63, calls inlined = 183, statements flattened = 1303 [2022-02-21 04:19:05,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:19:05,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:19:05,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:19:05,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:19:05,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:19:05,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:19:05,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:19:05,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:19:05,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (1/1) ... [2022-02-21 04:19:05,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:19:05,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:19:05,919 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 04:19:05,921 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 04:19:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:19:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:19:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:19:05,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:19:06,014 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:19:06,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:19:06,639 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:19:06,646 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:19:06,646 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:19:06,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:19:06 BoogieIcfgContainer [2022-02-21 04:19:06,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:19:06,648 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:19:06,649 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:19:06,651 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:19:06,651 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:19:06,652 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:19:05" (1/3) ... [2022-02-21 04:19:06,652 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76065eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:19:06, skipping insertion in model container [2022-02-21 04:19:06,652 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:19:06,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:05" (2/3) ... [2022-02-21 04:19:06,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76065eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:19:06, skipping insertion in model container [2022-02-21 04:19:06,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:19:06,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:19:06" (3/3) ... [2022-02-21 04:19:06,654 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2022-02-21 04:19:06,681 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:19:06,682 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:19:06,682 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:19:06,682 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:19:06,682 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:19:06,682 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:19:06,682 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:19:06,683 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:19:06,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 333 states, 332 states have (on average 1.3493975903614457) internal successors, (448), 332 states have internal predecessors, (448), 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 04:19:06,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 219 [2022-02-21 04:19:06,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:06,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:06,786 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:06,786 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:06,787 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:19:06,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 333 states, 332 states have (on average 1.3493975903614457) internal successors, (448), 332 states have internal predecessors, (448), 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 04:19:06,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 219 [2022-02-21 04:19:06,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:06,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:06,815 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:06,816 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:06,823 INFO L791 eck$LassoCheckResult]: Stem: 320#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 214#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 107#L685true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 129#L678true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 323#L693true main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 38#L640true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 51#L613true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 133#L59true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 77#L118-2true [2022-02-21 04:19:06,823 INFO L793 eck$LassoCheckResult]: Loop: 77#L118-2true assume !false; 321#L119true assume test_~splverifierCounter~0#1 < 4; 227#L120true test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 237#L128true assume !(0 != test_~tmp~1#1); 335#L128-2true test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 251#L138true assume !(0 != test_~tmp___0~1#1); 284#L138-2true test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 37#L148true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 201#L447true assume { :end_inline_startSystem } true; 213#L156-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 111#L349true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 20#L69true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 136#L195true assume !(0 != ~pumpRunning~0); 90#L195-2true assume !(0 != ~systemActive~0); 128#L202-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 286#L526true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 172#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 314#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 262#L212true assume { :end_inline_timeShift } true; 77#L118-2true [2022-02-21 04:19:06,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:06,828 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:19:06,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:06,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050880289] [2022-02-21 04:19:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:06,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:06,959 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:07,005 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash 483876203, now seen corresponding path program 1 times [2022-02-21 04:19:07,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:07,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267543596] [2022-02-21 04:19:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:07,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:07,060 INFO L290 TraceCheckUtils]: 0: Hoare triple {339#true} assume !false; {339#true} is VALID [2022-02-21 04:19:07,061 INFO L290 TraceCheckUtils]: 1: Hoare triple {339#true} assume test_~splverifierCounter~0#1 < 4; {339#true} is VALID [2022-02-21 04:19:07,061 INFO L290 TraceCheckUtils]: 2: Hoare triple {339#true} test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {339#true} is VALID [2022-02-21 04:19:07,061 INFO L290 TraceCheckUtils]: 3: Hoare triple {339#true} assume !(0 != test_~tmp~1#1); {339#true} is VALID [2022-02-21 04:19:07,061 INFO L290 TraceCheckUtils]: 4: Hoare triple {339#true} test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {339#true} is VALID [2022-02-21 04:19:07,061 INFO L290 TraceCheckUtils]: 5: Hoare triple {339#true} assume !(0 != test_~tmp___0~1#1); {339#true} is VALID [2022-02-21 04:19:07,062 INFO L290 TraceCheckUtils]: 6: Hoare triple {339#true} test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {339#true} is VALID [2022-02-21 04:19:07,062 INFO L290 TraceCheckUtils]: 7: Hoare triple {339#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {341#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:07,063 INFO L290 TraceCheckUtils]: 8: Hoare triple {341#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {341#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:07,063 INFO L290 TraceCheckUtils]: 9: Hoare triple {341#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {341#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:07,064 INFO L290 TraceCheckUtils]: 10: Hoare triple {341#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {341#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:07,064 INFO L290 TraceCheckUtils]: 11: Hoare triple {341#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {341#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:07,064 INFO L290 TraceCheckUtils]: 12: Hoare triple {341#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {341#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:07,065 INFO L290 TraceCheckUtils]: 13: Hoare triple {341#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {340#false} is VALID [2022-02-21 04:19:07,065 INFO L290 TraceCheckUtils]: 14: Hoare triple {340#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {340#false} is VALID [2022-02-21 04:19:07,066 INFO L290 TraceCheckUtils]: 15: Hoare triple {340#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {340#false} is VALID [2022-02-21 04:19:07,066 INFO L290 TraceCheckUtils]: 16: Hoare triple {340#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {340#false} is VALID [2022-02-21 04:19:07,066 INFO L290 TraceCheckUtils]: 17: Hoare triple {340#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {340#false} is VALID [2022-02-21 04:19:07,067 INFO L290 TraceCheckUtils]: 18: Hoare triple {340#false} assume { :end_inline_timeShift } true; {340#false} is VALID [2022-02-21 04:19:07,068 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 04:19:07,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:07,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267543596] [2022-02-21 04:19:07,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267543596] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:07,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:07,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:19:07,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938488421] [2022-02-21 04:19:07,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:07,075 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:07,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:07,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:19:07,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:19:07,115 INFO L87 Difference]: Start difference. First operand has 333 states, 332 states have (on average 1.3493975903614457) internal successors, (448), 332 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:19:07,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:07,752 INFO L93 Difference]: Finished difference Result 650 states and 862 transitions. [2022-02-21 04:19:07,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:19:07,753 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:19:07,767 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:07,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 650 states and 862 transitions. [2022-02-21 04:19:07,793 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 428 [2022-02-21 04:19:07,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 650 states to 630 states and 841 transitions. [2022-02-21 04:19:07,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 630 [2022-02-21 04:19:07,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 630 [2022-02-21 04:19:07,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 630 states and 841 transitions. [2022-02-21 04:19:07,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:07,826 INFO L681 BuchiCegarLoop]: Abstraction has 630 states and 841 transitions. [2022-02-21 04:19:07,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states and 841 transitions. [2022-02-21 04:19:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 627. [2022-02-21 04:19:07,882 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:07,887 INFO L82 GeneralOperation]: Start isEquivalent. First operand 630 states and 841 transitions. Second operand has 627 states, 627 states have (on average 1.3349282296650717) internal successors, (837), 626 states have internal predecessors, (837), 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 04:19:07,891 INFO L74 IsIncluded]: Start isIncluded. First operand 630 states and 841 transitions. Second operand has 627 states, 627 states have (on average 1.3349282296650717) internal successors, (837), 626 states have internal predecessors, (837), 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 04:19:07,895 INFO L87 Difference]: Start difference. First operand 630 states and 841 transitions. Second operand has 627 states, 627 states have (on average 1.3349282296650717) internal successors, (837), 626 states have internal predecessors, (837), 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 04:19:07,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:07,925 INFO L93 Difference]: Finished difference Result 630 states and 841 transitions. [2022-02-21 04:19:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 841 transitions. [2022-02-21 04:19:07,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:07,939 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:07,941 INFO L74 IsIncluded]: Start isIncluded. First operand has 627 states, 627 states have (on average 1.3349282296650717) internal successors, (837), 626 states have internal predecessors, (837), 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 630 states and 841 transitions. [2022-02-21 04:19:07,942 INFO L87 Difference]: Start difference. First operand has 627 states, 627 states have (on average 1.3349282296650717) internal successors, (837), 626 states have internal predecessors, (837), 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 630 states and 841 transitions. [2022-02-21 04:19:07,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:07,961 INFO L93 Difference]: Finished difference Result 630 states and 841 transitions. [2022-02-21 04:19:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 841 transitions. [2022-02-21 04:19:07,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:07,962 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:07,962 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:07,962 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:07,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 627 states have (on average 1.3349282296650717) internal successors, (837), 626 states have internal predecessors, (837), 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 04:19:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 837 transitions. [2022-02-21 04:19:07,981 INFO L704 BuchiCegarLoop]: Abstraction has 627 states and 837 transitions. [2022-02-21 04:19:07,981 INFO L587 BuchiCegarLoop]: Abstraction has 627 states and 837 transitions. [2022-02-21 04:19:07,981 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:19:07,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 627 states and 837 transitions. [2022-02-21 04:19:07,984 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 425 [2022-02-21 04:19:07,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:07,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:07,985 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:07,985 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] [2022-02-21 04:19:07,986 INFO L791 eck$LassoCheckResult]: Stem: 1326#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1283#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1179#L685 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1180#L678 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1208#L693 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 1059#L640 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1060#L613 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1084#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1130#L118-2 [2022-02-21 04:19:07,986 INFO L793 eck$LassoCheckResult]: Loop: 1130#L118-2 assume !false; 1131#L119 assume test_~splverifierCounter~0#1 < 4; 1287#L120 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1288#L128 assume !(0 != test_~tmp~1#1); 1282#L128-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1297#L138 assume !(0 != test_~tmp___0~1#1); 1298#L138-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1056#L148 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1057#L447 assume { :end_inline_startSystem } true; 1234#L156-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1182#L349 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1026#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1027#L195 assume !(0 != ~pumpRunning~0); 1154#L195-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1124#L279 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret15#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 1126#L494 isMethaneAlarm_#t~ret15#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret15#1;havoc isMethaneAlarm_#t~ret15#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 1310#L340 processEnvironment_#t~ret13#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret13#1;havoc processEnvironment_#t~ret13#1; 1313#L283 assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1014#L330-1 assume { :end_inline_deactivatePump } true; 1015#L279-1 assume { :end_inline_processEnvironment } true; 1206#L202-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1207#L526 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1247#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1078#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1307#L212 assume { :end_inline_timeShift } true; 1130#L118-2 [2022-02-21 04:19:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:07,987 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:19:07,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:07,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300814587] [2022-02-21 04:19:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:07,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,004 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,019 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:08,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:08,020 INFO L85 PathProgramCache]: Analyzing trace with hash -459024556, now seen corresponding path program 1 times [2022-02-21 04:19:08,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:08,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579501793] [2022-02-21 04:19:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:08,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:08,036 INFO L290 TraceCheckUtils]: 0: Hoare triple {2884#true} assume !false; {2884#true} is VALID [2022-02-21 04:19:08,037 INFO L290 TraceCheckUtils]: 1: Hoare triple {2884#true} assume test_~splverifierCounter~0#1 < 4; {2884#true} is VALID [2022-02-21 04:19:08,037 INFO L290 TraceCheckUtils]: 2: Hoare triple {2884#true} test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {2884#true} is VALID [2022-02-21 04:19:08,037 INFO L290 TraceCheckUtils]: 3: Hoare triple {2884#true} assume !(0 != test_~tmp~1#1); {2884#true} is VALID [2022-02-21 04:19:08,037 INFO L290 TraceCheckUtils]: 4: Hoare triple {2884#true} test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {2884#true} is VALID [2022-02-21 04:19:08,038 INFO L290 TraceCheckUtils]: 5: Hoare triple {2884#true} assume !(0 != test_~tmp___0~1#1); {2884#true} is VALID [2022-02-21 04:19:08,038 INFO L290 TraceCheckUtils]: 6: Hoare triple {2884#true} test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {2884#true} is VALID [2022-02-21 04:19:08,038 INFO L290 TraceCheckUtils]: 7: Hoare triple {2884#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {2884#true} is VALID [2022-02-21 04:19:08,038 INFO L290 TraceCheckUtils]: 8: Hoare triple {2884#true} assume { :end_inline_startSystem } true; {2884#true} is VALID [2022-02-21 04:19:08,038 INFO L290 TraceCheckUtils]: 9: Hoare triple {2884#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {2884#true} is VALID [2022-02-21 04:19:08,039 INFO L290 TraceCheckUtils]: 10: Hoare triple {2884#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {2884#true} is VALID [2022-02-21 04:19:08,039 INFO L290 TraceCheckUtils]: 11: Hoare triple {2884#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2884#true} is VALID [2022-02-21 04:19:08,039 INFO L290 TraceCheckUtils]: 12: Hoare triple {2884#true} assume !(0 != ~pumpRunning~0); {2886#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:19:08,040 INFO L290 TraceCheckUtils]: 13: Hoare triple {2886#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {2886#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:19:08,040 INFO L290 TraceCheckUtils]: 14: Hoare triple {2886#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret15#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {2885#false} is VALID [2022-02-21 04:19:08,040 INFO L290 TraceCheckUtils]: 15: Hoare triple {2885#false} isMethaneAlarm_#t~ret15#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret15#1;havoc isMethaneAlarm_#t~ret15#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; {2885#false} is VALID [2022-02-21 04:19:08,040 INFO L290 TraceCheckUtils]: 16: Hoare triple {2885#false} processEnvironment_#t~ret13#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret13#1;havoc processEnvironment_#t~ret13#1; {2885#false} is VALID [2022-02-21 04:19:08,041 INFO L290 TraceCheckUtils]: 17: Hoare triple {2885#false} assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2885#false} is VALID [2022-02-21 04:19:08,041 INFO L290 TraceCheckUtils]: 18: Hoare triple {2885#false} assume { :end_inline_deactivatePump } true; {2885#false} is VALID [2022-02-21 04:19:08,041 INFO L290 TraceCheckUtils]: 19: Hoare triple {2885#false} assume { :end_inline_processEnvironment } true; {2885#false} is VALID [2022-02-21 04:19:08,041 INFO L290 TraceCheckUtils]: 20: Hoare triple {2885#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {2885#false} is VALID [2022-02-21 04:19:08,041 INFO L290 TraceCheckUtils]: 21: Hoare triple {2885#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {2885#false} is VALID [2022-02-21 04:19:08,042 INFO L290 TraceCheckUtils]: 22: Hoare triple {2885#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {2885#false} is VALID [2022-02-21 04:19:08,042 INFO L290 TraceCheckUtils]: 23: Hoare triple {2885#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2885#false} is VALID [2022-02-21 04:19:08,042 INFO L290 TraceCheckUtils]: 24: Hoare triple {2885#false} assume { :end_inline_timeShift } true; {2885#false} is VALID [2022-02-21 04:19:08,042 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 04:19:08,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:08,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579501793] [2022-02-21 04:19:08,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579501793] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:08,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:08,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:19:08,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869703129] [2022-02-21 04:19:08,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:08,044 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:08,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:08,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:19:08,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:19:08,045 INFO L87 Difference]: Start difference. First operand 627 states and 837 transitions. cyclomatic complexity: 213 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:08,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:08,351 INFO L93 Difference]: Finished difference Result 661 states and 840 transitions. [2022-02-21 04:19:08,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:19:08,351 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:08,373 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:08,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 661 states and 840 transitions. [2022-02-21 04:19:08,387 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 459 [2022-02-21 04:19:08,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 661 states to 661 states and 840 transitions. [2022-02-21 04:19:08,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 661 [2022-02-21 04:19:08,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 661 [2022-02-21 04:19:08,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 661 states and 840 transitions. [2022-02-21 04:19:08,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:08,402 INFO L681 BuchiCegarLoop]: Abstraction has 661 states and 840 transitions. [2022-02-21 04:19:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states and 840 transitions. [2022-02-21 04:19:08,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2022-02-21 04:19:08,419 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:08,420 INFO L82 GeneralOperation]: Start isEquivalent. First operand 661 states and 840 transitions. Second operand has 661 states, 661 states have (on average 1.2708018154311649) internal successors, (840), 660 states have internal predecessors, (840), 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 04:19:08,421 INFO L74 IsIncluded]: Start isIncluded. First operand 661 states and 840 transitions. Second operand has 661 states, 661 states have (on average 1.2708018154311649) internal successors, (840), 660 states have internal predecessors, (840), 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 04:19:08,422 INFO L87 Difference]: Start difference. First operand 661 states and 840 transitions. Second operand has 661 states, 661 states have (on average 1.2708018154311649) internal successors, (840), 660 states have internal predecessors, (840), 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 04:19:08,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:08,433 INFO L93 Difference]: Finished difference Result 661 states and 840 transitions. [2022-02-21 04:19:08,433 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 840 transitions. [2022-02-21 04:19:08,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:08,434 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:08,436 INFO L74 IsIncluded]: Start isIncluded. First operand has 661 states, 661 states have (on average 1.2708018154311649) internal successors, (840), 660 states have internal predecessors, (840), 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 661 states and 840 transitions. [2022-02-21 04:19:08,438 INFO L87 Difference]: Start difference. First operand has 661 states, 661 states have (on average 1.2708018154311649) internal successors, (840), 660 states have internal predecessors, (840), 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 661 states and 840 transitions. [2022-02-21 04:19:08,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:08,457 INFO L93 Difference]: Finished difference Result 661 states and 840 transitions. [2022-02-21 04:19:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 840 transitions. [2022-02-21 04:19:08,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:08,458 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:08,458 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:08,458 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:08,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 661 states have (on average 1.2708018154311649) internal successors, (840), 660 states have internal predecessors, (840), 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 04:19:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 840 transitions. [2022-02-21 04:19:08,480 INFO L704 BuchiCegarLoop]: Abstraction has 661 states and 840 transitions. [2022-02-21 04:19:08,481 INFO L587 BuchiCegarLoop]: Abstraction has 661 states and 840 transitions. [2022-02-21 04:19:08,481 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:19:08,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 661 states and 840 transitions. [2022-02-21 04:19:08,489 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 459 [2022-02-21 04:19:08,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:08,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:08,490 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:08,491 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:08,491 INFO L791 eck$LassoCheckResult]: Stem: 3880#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3807#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 3695#L685 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3696#L678 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 3723#L693 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 3596#L640 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 3597#L613 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3617#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3725#L118-2 [2022-02-21 04:19:08,491 INFO L793 eck$LassoCheckResult]: Loop: 3725#L118-2 assume !false; 3877#L119 assume test_~splverifierCounter~0#1 < 4; 3878#L120 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 3819#L128 assume !(0 != test_~tmp~1#1); 3805#L128-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 3836#L138 assume !(0 != test_~tmp___0~1#1); 3837#L138-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 3593#L148 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3594#L447 assume { :end_inline_startSystem } true; 3750#L156-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 4008#L349 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 4007#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3728#L195 assume !(0 != ~pumpRunning~0); 3729#L195-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 3998#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~3#1; 3997#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 3995#L227-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 3993#L534-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 3988#L539-3 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 3984#L398-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~2#1 := 0; 3980#L398-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3976#L404-3 processEnvironment__wrappee__highWaterSensor_#t~ret11#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret11#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1; 3970#L231-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3726#L219-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3727#L227-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3874#L253-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3563#L279-1 assume { :end_inline_processEnvironment } true; 3720#L202-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 3721#L526 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 3761#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 3611#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3841#L212 assume { :end_inline_timeShift } true; 3725#L118-2 [2022-02-21 04:19:08,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:08,492 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:19:08,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:08,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595113614] [2022-02-21 04:19:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:08,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,523 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:08,534 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:08,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:08,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2103481522, now seen corresponding path program 1 times [2022-02-21 04:19:08,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:08,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015929471] [2022-02-21 04:19:08,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:08,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:08,604 INFO L290 TraceCheckUtils]: 0: Hoare triple {5536#true} assume !false; {5536#true} is VALID [2022-02-21 04:19:08,604 INFO L290 TraceCheckUtils]: 1: Hoare triple {5536#true} assume test_~splverifierCounter~0#1 < 4; {5536#true} is VALID [2022-02-21 04:19:08,604 INFO L290 TraceCheckUtils]: 2: Hoare triple {5536#true} test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {5536#true} is VALID [2022-02-21 04:19:08,605 INFO L290 TraceCheckUtils]: 3: Hoare triple {5536#true} assume !(0 != test_~tmp~1#1); {5536#true} is VALID [2022-02-21 04:19:08,605 INFO L290 TraceCheckUtils]: 4: Hoare triple {5536#true} test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {5536#true} is VALID [2022-02-21 04:19:08,608 INFO L290 TraceCheckUtils]: 5: Hoare triple {5536#true} assume !(0 != test_~tmp___0~1#1); {5536#true} is VALID [2022-02-21 04:19:08,609 INFO L290 TraceCheckUtils]: 6: Hoare triple {5536#true} test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {5536#true} is VALID [2022-02-21 04:19:08,609 INFO L290 TraceCheckUtils]: 7: Hoare triple {5536#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {5536#true} is VALID [2022-02-21 04:19:08,609 INFO L290 TraceCheckUtils]: 8: Hoare triple {5536#true} assume { :end_inline_startSystem } true; {5536#true} is VALID [2022-02-21 04:19:08,609 INFO L290 TraceCheckUtils]: 9: Hoare triple {5536#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; {5536#true} is VALID [2022-02-21 04:19:08,609 INFO L290 TraceCheckUtils]: 10: Hoare triple {5536#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {5536#true} is VALID [2022-02-21 04:19:08,609 INFO L290 TraceCheckUtils]: 11: Hoare triple {5536#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {5536#true} is VALID [2022-02-21 04:19:08,610 INFO L290 TraceCheckUtils]: 12: Hoare triple {5536#true} assume !(0 != ~pumpRunning~0); {5536#true} is VALID [2022-02-21 04:19:08,610 INFO L290 TraceCheckUtils]: 13: Hoare triple {5536#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {5536#true} is VALID [2022-02-21 04:19:08,610 INFO L290 TraceCheckUtils]: 14: Hoare triple {5536#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~3#1; {5536#true} is VALID [2022-02-21 04:19:08,610 INFO L290 TraceCheckUtils]: 15: Hoare triple {5536#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; {5536#true} is VALID [2022-02-21 04:19:08,610 INFO L290 TraceCheckUtils]: 16: Hoare triple {5536#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {5536#true} is VALID [2022-02-21 04:19:08,611 INFO L290 TraceCheckUtils]: 17: Hoare triple {5536#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,612 INFO L290 TraceCheckUtils]: 18: Hoare triple {5538#(not (= 2 ~waterLevel~0))} isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,612 INFO L290 TraceCheckUtils]: 19: Hoare triple {5538#(not (= 2 ~waterLevel~0))} assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~2#1 := 0; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,612 INFO L290 TraceCheckUtils]: 20: Hoare triple {5538#(not (= 2 ~waterLevel~0))} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,612 INFO L290 TraceCheckUtils]: 21: Hoare triple {5538#(not (= 2 ~waterLevel~0))} processEnvironment__wrappee__highWaterSensor_#t~ret11#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret11#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,613 INFO L290 TraceCheckUtils]: 22: Hoare triple {5538#(not (= 2 ~waterLevel~0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,613 INFO L290 TraceCheckUtils]: 23: Hoare triple {5538#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,614 INFO L290 TraceCheckUtils]: 24: Hoare triple {5538#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,614 INFO L290 TraceCheckUtils]: 25: Hoare triple {5538#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,614 INFO L290 TraceCheckUtils]: 26: Hoare triple {5538#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {5538#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:08,615 INFO L290 TraceCheckUtils]: 27: Hoare triple {5538#(not (= 2 ~waterLevel~0))} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {5539#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:19:08,615 INFO L290 TraceCheckUtils]: 28: Hoare triple {5539#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {5540#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1|))} is VALID [2022-02-21 04:19:08,615 INFO L290 TraceCheckUtils]: 29: Hoare triple {5540#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {5537#false} is VALID [2022-02-21 04:19:08,615 INFO L290 TraceCheckUtils]: 30: Hoare triple {5537#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {5537#false} is VALID [2022-02-21 04:19:08,616 INFO L290 TraceCheckUtils]: 31: Hoare triple {5537#false} assume { :end_inline_timeShift } true; {5537#false} is VALID [2022-02-21 04:19:08,617 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 04:19:08,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:08,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015929471] [2022-02-21 04:19:08,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015929471] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:08,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:08,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:19:08,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520275895] [2022-02-21 04:19:08,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:08,618 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:08,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:08,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:19:08,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:19:08,619 INFO L87 Difference]: Start difference. First operand 661 states and 840 transitions. cyclomatic complexity: 182 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 04:19:10,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:10,417 INFO L93 Difference]: Finished difference Result 3299 states and 4163 transitions. [2022-02-21 04:19:10,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:19:10,417 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 04:19:10,442 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:10,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3299 states and 4163 transitions. [2022-02-21 04:19:10,865 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 2262 [2022-02-21 04:19:11,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3299 states to 3299 states and 4163 transitions. [2022-02-21 04:19:11,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3299 [2022-02-21 04:19:11,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3299 [2022-02-21 04:19:11,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3299 states and 4163 transitions. [2022-02-21 04:19:11,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:11,227 INFO L681 BuchiCegarLoop]: Abstraction has 3299 states and 4163 transitions. [2022-02-21 04:19:11,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states and 4163 transitions. [2022-02-21 04:19:11,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 1308. [2022-02-21 04:19:11,249 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:11,252 INFO L82 GeneralOperation]: Start isEquivalent. First operand 3299 states and 4163 transitions. Second operand has 1308 states, 1308 states have (on average 1.2599388379204892) internal successors, (1648), 1307 states have internal predecessors, (1648), 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 04:19:11,254 INFO L74 IsIncluded]: Start isIncluded. First operand 3299 states and 4163 transitions. Second operand has 1308 states, 1308 states have (on average 1.2599388379204892) internal successors, (1648), 1307 states have internal predecessors, (1648), 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 04:19:11,256 INFO L87 Difference]: Start difference. First operand 3299 states and 4163 transitions. Second operand has 1308 states, 1308 states have (on average 1.2599388379204892) internal successors, (1648), 1307 states have internal predecessors, (1648), 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 04:19:11,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:11,510 INFO L93 Difference]: Finished difference Result 3299 states and 4163 transitions. [2022-02-21 04:19:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4163 transitions. [2022-02-21 04:19:11,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:11,514 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:11,517 INFO L74 IsIncluded]: Start isIncluded. First operand has 1308 states, 1308 states have (on average 1.2599388379204892) internal successors, (1648), 1307 states have internal predecessors, (1648), 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 3299 states and 4163 transitions. [2022-02-21 04:19:11,519 INFO L87 Difference]: Start difference. First operand has 1308 states, 1308 states have (on average 1.2599388379204892) internal successors, (1648), 1307 states have internal predecessors, (1648), 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 3299 states and 4163 transitions. [2022-02-21 04:19:11,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:11,769 INFO L93 Difference]: Finished difference Result 3299 states and 4163 transitions. [2022-02-21 04:19:11,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4163 transitions. [2022-02-21 04:19:11,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:11,774 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:11,774 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:11,774 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 1308 states have (on average 1.2599388379204892) internal successors, (1648), 1307 states have internal predecessors, (1648), 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 04:19:11,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1648 transitions. [2022-02-21 04:19:11,815 INFO L704 BuchiCegarLoop]: Abstraction has 1308 states and 1648 transitions. [2022-02-21 04:19:11,815 INFO L587 BuchiCegarLoop]: Abstraction has 1308 states and 1648 transitions. [2022-02-21 04:19:11,815 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:19:11,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1308 states and 1648 transitions. [2022-02-21 04:19:11,820 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 914 [2022-02-21 04:19:11,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:11,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:11,820 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:11,820 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:11,821 INFO L791 eck$LassoCheckResult]: Stem: 9159#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 9097#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~8#1, main_~tmp~8#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 8995#L685 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 8996#L678 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 9022#L693 main_#t~ret31#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 8897#L640 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 8898#L613 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 8916#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 9024#L118-2 [2022-02-21 04:19:11,821 INFO L793 eck$LassoCheckResult]: Loop: 9024#L118-2 assume !false; 9449#L119 assume test_~splverifierCounter~0#1 < 4; 9448#L120 test_~tmp~1#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 9446#L128 assume !(0 != test_~tmp~1#1); 9444#L128-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 9442#L138 assume !(0 != test_~tmp___0~1#1); 9440#L138-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 9418#L148 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 9413#L447 assume { :end_inline_startSystem } true; 9412#L156-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 9411#L349 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 9410#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 9370#L195 assume !(0 != ~pumpRunning~0); 9368#L195-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 9367#L279 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~3#1; 9289#L253-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 9365#L227-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 9362#L534-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 9285#L539-3 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 9352#L398-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~2#1 := 0; 9345#L398-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 9338#L404-3 processEnvironment__wrappee__highWaterSensor_#t~ret11#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret11#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11#1; 9329#L231-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 9330#L219-6 assume { :end_inline_processEnvironment__wrappee__base } true; 9484#L227-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 9477#L253-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 9473#L279-1 assume { :end_inline_processEnvironment } true; 9458#L202-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 9457#L526 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 9456#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 9455#L349-1 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 9453#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 9452#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 9451#L212 assume { :end_inline_timeShift } true; 9024#L118-2 [2022-02-21 04:19:11,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:11,822 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:19:11,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:11,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135613044] [2022-02-21 04:19:11,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:11,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:11,854 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:11,862 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1464763049, now seen corresponding path program 1 times [2022-02-21 04:19:11,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:11,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503210312] [2022-02-21 04:19:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:11,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:11,881 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:11,891 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:11,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:11,892 INFO L85 PathProgramCache]: Analyzing trace with hash -769053870, now seen corresponding path program 1 times [2022-02-21 04:19:11,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:11,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843209639] [2022-02-21 04:19:11,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:11,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:11,906 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:11,939 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:14,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:19:14 BoogieIcfgContainer [2022-02-21 04:19:14,913 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:19:14,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:19:14,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:19:14,914 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:19:14,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:19:06" (3/4) ... [2022-02-21 04:19:14,919 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:19:14,976 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:19:14,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:19:14,978 INFO L158 Benchmark]: Toolchain (without parser) took 9635.18ms. Allocated memory was 88.1MB in the beginning and 201.3MB in the end (delta: 113.2MB). Free memory was 54.3MB in the beginning and 117.6MB in the end (delta: -63.4MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2022-02-21 04:19:14,978 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:19:14,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.76ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 54.1MB in the beginning and 75.9MB in the end (delta: -21.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:19:14,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.30ms. Allocated memory is still 113.2MB. Free memory was 75.9MB in the beginning and 68.9MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:19:14,979 INFO L158 Benchmark]: Boogie Preprocessor took 65.59ms. Allocated memory is still 113.2MB. Free memory was 68.9MB in the beginning and 64.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:14,979 INFO L158 Benchmark]: RCFGBuilder took 769.40ms. Allocated memory is still 113.2MB. Free memory was 64.7MB in the beginning and 83.4MB in the end (delta: -18.7MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:14,980 INFO L158 Benchmark]: BuchiAutomizer took 8264.75ms. Allocated memory was 113.2MB in the beginning and 201.3MB in the end (delta: 88.1MB). Free memory was 83.4MB in the beginning and 120.8MB in the end (delta: -37.4MB). Peak memory consumption was 104.6MB. Max. memory is 16.1GB. [2022-02-21 04:19:14,980 INFO L158 Benchmark]: Witness Printer took 62.72ms. Allocated memory is still 201.3MB. Free memory was 120.8MB in the beginning and 117.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:14,982 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 0.26ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.76ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 54.1MB in the beginning and 75.9MB in the end (delta: -21.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.30ms. Allocated memory is still 113.2MB. Free memory was 75.9MB in the beginning and 68.9MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.59ms. Allocated memory is still 113.2MB. Free memory was 68.9MB in the beginning and 64.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 769.40ms. Allocated memory is still 113.2MB. Free memory was 64.7MB in the beginning and 83.4MB in the end (delta: -18.7MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 8264.75ms. Allocated memory was 113.2MB in the beginning and 201.3MB in the end (delta: 88.1MB). Free memory was 83.4MB in the beginning and 120.8MB in the end (delta: -37.4MB). Peak memory consumption was 104.6MB. Max. memory is 16.1GB. * Witness Printer took 62.72ms. Allocated memory is still 201.3MB. Free memory was 120.8MB in the beginning and 117.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 1308 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.2s. Büchi inclusion checks took 2.6s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.8s AutomataMinimizationTime, 3 MinimizatonAttempts, 1994 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.8s Buchi closure took 0.0s. Biggest automaton had 1308 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2378 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2378 mSDsluCounter, 3679 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2296 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 247 IncrementalHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 1383 mSDtfsCounter, 247 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 118]: 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, tmp=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7384dc98=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c63ecc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5af93f8e=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@474aa512=29, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@544889b8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b8bd047=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@478c3295=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51bb931b=0, retValue_acc=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2337db1a=0, \result=1, retValue_acc=0, \result=1, tmp=1, tmp=1, tmp=1, tmp___2=29, tmp=0, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5deb8e8d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56d9ef5=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f5bb725=0, tmp=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 118]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L451] int waterLevel = 1; [L452] int methaneLevelCritical = 0; [L554] int cleanupTimeShifts = 4; [L867] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int retValue_acc ; [L632] int tmp ; [L636] FCALL select_helpers() [L637] FCALL select_features() [L638] CALL, EXPR valid_product() [L689] int retValue_acc ; [L692] retValue_acc = 1 [L693] return (retValue_acc); [L638] RET, EXPR valid_product() [L638] tmp = valid_product() [L640] COND TRUE \read(tmp) [L642] FCALL setup() [L643] CALL runTest() [L621] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 [L621] RET __utac_acc__Specification5_spec__1() [L622] CALL test() [L109] int splverifierCounter ; [L110] int tmp ; [L111] int tmp___0 ; [L112] int tmp___1 ; [L113] int tmp___2 ; [L116] splverifierCounter = 0 Loop: [L118] COND TRUE 1 [L120] COND TRUE splverifierCounter < 4 [L126] tmp = __VERIFIER_nondet_int() [L128] COND FALSE !(\read(tmp)) [L136] tmp___0 = __VERIFIER_nondet_int() [L138] COND FALSE !(\read(tmp___0)) [L146] tmp___2 = __VERIFIER_nondet_int() [L148] COND TRUE \read(tmp___2) [L150] CALL startSystem() [L446] systemActive = 1 [L150] RET startSystem() [L165] CALL timeShift() [L193] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L193] RET __utac_acc__Specification5_spec__2() [L195] COND FALSE !(\read(pumpRunning)) [L202] COND TRUE \read(systemActive) [L204] CALL processEnvironment() [L276] int tmp ; [L279] COND FALSE !(\read(pumpRunning)) [L294] CALL processEnvironment__wrappee__methaneQuery() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] CALL processEnvironment__wrappee__highWaterSensor() [L224] int tmp ; [L227] COND TRUE ! pumpRunning [L229] CALL, EXPR isHighWaterLevel() [L390] int retValue_acc ; [L391] int tmp ; [L392] int tmp___0 ; [L396] CALL, EXPR isHighWaterSensorDry() [L531] int retValue_acc ; [L534] COND TRUE waterLevel < 2 [L535] retValue_acc = 1 [L536] return (retValue_acc); [L396] RET, EXPR isHighWaterSensorDry() [L396] tmp = isHighWaterSensorDry() [L398] COND TRUE \read(tmp) [L399] tmp___0 = 0 [L403] retValue_acc = tmp___0 [L404] return (retValue_acc); [L229] RET, EXPR isHighWaterLevel() [L229] tmp = isHighWaterLevel() [L231] COND FALSE !(\read(tmp)) [L237] FCALL processEnvironment__wrappee__base() [L268] RET processEnvironment__wrappee__highWaterSensor() [L294] RET processEnvironment__wrappee__methaneQuery() [L204] RET processEnvironment() [L210] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L522] int retValue_acc ; [L525] retValue_acc = waterLevel [L526] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L345] int retValue_acc ; [L348] retValue_acc = pumpRunning [L349] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L210] RET __utac_acc__Specification5_spec__3() [L165] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:19:15,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)