./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product37.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 29e70cf9c9b1d0bd005d907ed1d78af9dd0d19752a19f66dfee72f35dd243fc7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:02,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:02,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:02,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:02,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:02,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:02,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:02,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:02,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:02,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:02,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:02,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:02,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:02,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:02,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:02,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:02,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:02,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:02,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:02,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:02,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:02,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:02,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:02,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:02,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:02,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:02,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:02,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:02,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:02,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:02,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:02,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:02,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:02,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:02,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:02,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:02,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:02,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:02,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:02,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:02,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:02,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:02,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:02,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:02,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:02,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:02,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:02,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:02,519 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:02,519 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:02,519 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:02,519 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:02,520 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:02,520 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:02,520 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:02,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:02,521 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:02,521 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:02,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:02,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:02,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:02,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:02,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:02,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:02,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:02,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:02,522 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:02,523 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:02,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:02,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:02,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:02,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:02,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:02,524 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:02,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29e70cf9c9b1d0bd005d907ed1d78af9dd0d19752a19f66dfee72f35dd243fc7 [2022-02-21 04:17:02,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:02,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:02,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:02,748 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:02,749 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:02,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2022-02-21 04:17:02,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9555d4e95/eb8b12f112cc47dc8c7828a2bd06b9a0/FLAGa7df9ed0b [2022-02-21 04:17:03,297 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:03,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2022-02-21 04:17:03,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9555d4e95/eb8b12f112cc47dc8c7828a2bd06b9a0/FLAGa7df9ed0b [2022-02-21 04:17:03,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9555d4e95/eb8b12f112cc47dc8c7828a2bd06b9a0 [2022-02-21 04:17:03,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:03,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:03,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:03,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:03,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:03,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:03" (1/1) ... [2022-02-21 04:17:03,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a347e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:03, skipping insertion in model container [2022-02-21 04:17:03,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:03" (1/1) ... [2022-02-21 04:17:03,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:03,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:04,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c[17206,17219] [2022-02-21 04:17:04,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:04,073 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:04,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c[17206,17219] [2022-02-21 04:17:04,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:04,182 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:04,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04 WrapperNode [2022-02-21 04:17:04,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:04,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:04,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:04,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:04,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,279 INFO L137 Inliner]: procedures = 53, calls = 154, calls flagged for inlining = 51, calls inlined = 80, statements flattened = 614 [2022-02-21 04:17:04,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:04,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:04,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:04,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:04,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:04,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:04,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:04,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:04,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:04,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:04,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:17:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:04,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:17:04,501 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:04,503 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:05,011 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:05,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:05,022 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:05,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:05 BoogieIcfgContainer [2022-02-21 04:17:05,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:05,027 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:05,027 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:05,030 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:05,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:05,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:03" (1/3) ... [2022-02-21 04:17:05,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74aa8161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:05, skipping insertion in model container [2022-02-21 04:17:05,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:05,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (2/3) ... [2022-02-21 04:17:05,033 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74aa8161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:05, skipping insertion in model container [2022-02-21 04:17:05,033 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:05,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:05" (3/3) ... [2022-02-21 04:17:05,034 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2022-02-21 04:17:05,088 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:05,088 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:05,089 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:05,089 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:05,089 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:05,089 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:05,089 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:05,089 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:05,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 162 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 161 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:05,148 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:17:05,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:05,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:05,154 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:05,154 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:05,155 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:05,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 162 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 161 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:05,179 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:17:05,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:05,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:05,180 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:05,180 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:05,184 INFO L791 eck$LassoCheckResult]: Stem: 149#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 41#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 6#L931true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 98#L924true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 163#L939true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 64#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 144#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 124#L716-2true [2022-02-21 04:17:05,184 INFO L793 eck$LassoCheckResult]: Loop: 124#L716-2true assume !false; 20#L717true assume test_~splverifierCounter~0#1 < 4; 107#L718true test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 106#L726true assume !(0 != test_~tmp~7#1); 82#L726-2true test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 37#L736true assume !(0 != test_~tmp___0~1#1); 56#L736-2true test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 99#L746true assume 0 != test_~tmp___2~0#1; 80#L752-2true assume { :begin_inline_timeShift } true; 101#L535true assume !(0 != ~pumpRunning~0); 154#L535-2true assume !(0 != ~systemActive~0); 62#L542-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 29#L815-1true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 24#L884true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 95#L890-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 45#L552true assume { :end_inline_timeShift } true; 124#L716-2true [2022-02-21 04:17:05,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:05,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:05,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:05,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705940995] [2022-02-21 04:17:05,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:05,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:05,347 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:05,393 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:05,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:05,397 INFO L85 PathProgramCache]: Analyzing trace with hash 975691414, now seen corresponding path program 1 times [2022-02-21 04:17:05,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:05,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279289335] [2022-02-21 04:17:05,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:05,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:05,418 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:05,424 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:05,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:05,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1963856806, now seen corresponding path program 1 times [2022-02-21 04:17:05,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:05,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737959758] [2022-02-21 04:17:05,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:05,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:05,594 INFO L290 TraceCheckUtils]: 0: Hoare triple {170#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {172#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:05,595 INFO L290 TraceCheckUtils]: 1: Hoare triple {172#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {172#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:05,596 INFO L290 TraceCheckUtils]: 2: Hoare triple {172#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {172#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:05,596 INFO L290 TraceCheckUtils]: 3: Hoare triple {172#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {173#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:05,597 INFO L290 TraceCheckUtils]: 4: Hoare triple {173#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {174#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:17:05,598 INFO L290 TraceCheckUtils]: 5: Hoare triple {174#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,598 INFO L290 TraceCheckUtils]: 6: Hoare triple {175#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,599 INFO L290 TraceCheckUtils]: 7: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !false; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,599 INFO L290 TraceCheckUtils]: 8: Hoare triple {175#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,600 INFO L290 TraceCheckUtils]: 9: Hoare triple {175#(not (= 0 ~systemActive~0))} test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,601 INFO L290 TraceCheckUtils]: 10: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~7#1); {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,601 INFO L290 TraceCheckUtils]: 11: Hoare triple {175#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,602 INFO L290 TraceCheckUtils]: 12: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,602 INFO L290 TraceCheckUtils]: 13: Hoare triple {175#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,603 INFO L290 TraceCheckUtils]: 14: Hoare triple {175#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,603 INFO L290 TraceCheckUtils]: 15: Hoare triple {175#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,604 INFO L290 TraceCheckUtils]: 16: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {175#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,604 INFO L290 TraceCheckUtils]: 17: Hoare triple {175#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {171#false} is VALID [2022-02-21 04:17:05,604 INFO L290 TraceCheckUtils]: 18: Hoare triple {171#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {171#false} is VALID [2022-02-21 04:17:05,605 INFO L290 TraceCheckUtils]: 19: Hoare triple {171#false} __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; {171#false} is VALID [2022-02-21 04:17:05,605 INFO L290 TraceCheckUtils]: 20: Hoare triple {171#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {171#false} is VALID [2022-02-21 04:17:05,606 INFO L290 TraceCheckUtils]: 21: Hoare triple {171#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {171#false} is VALID [2022-02-21 04:17:05,606 INFO L290 TraceCheckUtils]: 22: Hoare triple {171#false} assume { :end_inline_timeShift } true; {171#false} is VALID [2022-02-21 04:17:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:05,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:05,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737959758] [2022-02-21 04:17:05,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737959758] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:05,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:05,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:05,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923524168] [2022-02-21 04:17:05,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:05,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:05,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:05,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:05,787 INFO L87 Difference]: Start difference. First operand has 162 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 161 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,203 INFO L93 Difference]: Finished difference Result 159 states and 208 transitions. [2022-02-21 04:17:06,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:06,204 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,228 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:06,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 208 transitions. [2022-02-21 04:17:06,255 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-02-21 04:17:06,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 149 states and 198 transitions. [2022-02-21 04:17:06,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2022-02-21 04:17:06,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2022-02-21 04:17:06,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 198 transitions. [2022-02-21 04:17:06,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:06,270 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-02-21 04:17:06,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 198 transitions. [2022-02-21 04:17:06,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-02-21 04:17:06,302 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:06,308 INFO L82 GeneralOperation]: Start isEquivalent. First operand 149 states and 198 transitions. Second operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,309 INFO L74 IsIncluded]: Start isIncluded. First operand 149 states and 198 transitions. Second operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,310 INFO L87 Difference]: Start difference. First operand 149 states and 198 transitions. Second operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,315 INFO L93 Difference]: Finished difference Result 149 states and 198 transitions. [2022-02-21 04:17:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 198 transitions. [2022-02-21 04:17:06,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:06,318 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:06,318 INFO L74 IsIncluded]: Start isIncluded. First operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 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 149 states and 198 transitions. [2022-02-21 04:17:06,319 INFO L87 Difference]: Start difference. First operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 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 149 states and 198 transitions. [2022-02-21 04:17:06,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,324 INFO L93 Difference]: Finished difference Result 149 states and 198 transitions. [2022-02-21 04:17:06,324 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 198 transitions. [2022-02-21 04:17:06,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:06,325 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:06,325 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:06,326 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:06,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.3288590604026846) internal successors, (198), 148 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 198 transitions. [2022-02-21 04:17:06,332 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-02-21 04:17:06,332 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 198 transitions. [2022-02-21 04:17:06,333 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:06,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 198 transitions. [2022-02-21 04:17:06,334 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-02-21 04:17:06,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:06,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:06,335 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:06,335 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:06,335 INFO L791 eck$LassoCheckResult]: Stem: 486#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 409#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 343#L931 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 344#L924 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 465#L939 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 438#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 439#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 413#L716-2 [2022-02-21 04:17:06,336 INFO L793 eck$LassoCheckResult]: Loop: 413#L716-2 assume !false; 371#L717 assume test_~splverifierCounter~0#1 < 4; 372#L718 test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 468#L726 assume !(0 != test_~tmp~7#1); 460#L726-2 test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 398#L736 assume !(0 != test_~tmp___0~1#1); 400#L736-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 430#L746 assume 0 != test_~tmp___2~0#1; 454#L752-2 assume { :begin_inline_timeShift } true; 455#L535 assume !(0 != ~pumpRunning~0); 466#L535-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 463#L593 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 448#L567-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 449#L559-3 assume { :end_inline_processEnvironment__wrappee__base } true; 346#L567-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 435#L593-1 assume { :end_inline_processEnvironment } true; 436#L542-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 387#L815-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 377#L884 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 379#L890-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 412#L552 assume { :end_inline_timeShift } true; 413#L716-2 [2022-02-21 04:17:06,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:06,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735636862] [2022-02-21 04:17:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,358 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,374 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:06,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1379362741, now seen corresponding path program 1 times [2022-02-21 04:17:06,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577566668] [2022-02-21 04:17:06,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:06,400 INFO L290 TraceCheckUtils]: 0: Hoare triple {791#true} assume !false; {791#true} is VALID [2022-02-21 04:17:06,400 INFO L290 TraceCheckUtils]: 1: Hoare triple {791#true} assume test_~splverifierCounter~0#1 < 4; {791#true} is VALID [2022-02-21 04:17:06,401 INFO L290 TraceCheckUtils]: 2: Hoare triple {791#true} test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {791#true} is VALID [2022-02-21 04:17:06,401 INFO L290 TraceCheckUtils]: 3: Hoare triple {791#true} assume !(0 != test_~tmp~7#1); {791#true} is VALID [2022-02-21 04:17:06,401 INFO L290 TraceCheckUtils]: 4: Hoare triple {791#true} test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {791#true} is VALID [2022-02-21 04:17:06,401 INFO L290 TraceCheckUtils]: 5: Hoare triple {791#true} assume !(0 != test_~tmp___0~1#1); {791#true} is VALID [2022-02-21 04:17:06,402 INFO L290 TraceCheckUtils]: 6: Hoare triple {791#true} test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {791#true} is VALID [2022-02-21 04:17:06,402 INFO L290 TraceCheckUtils]: 7: Hoare triple {791#true} assume 0 != test_~tmp___2~0#1; {791#true} is VALID [2022-02-21 04:17:06,402 INFO L290 TraceCheckUtils]: 8: Hoare triple {791#true} assume { :begin_inline_timeShift } true; {791#true} is VALID [2022-02-21 04:17:06,403 INFO L290 TraceCheckUtils]: 9: Hoare triple {791#true} assume !(0 != ~pumpRunning~0); {793#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:06,403 INFO L290 TraceCheckUtils]: 10: Hoare triple {793#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {793#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:06,404 INFO L290 TraceCheckUtils]: 11: Hoare triple {793#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; {793#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:06,404 INFO L290 TraceCheckUtils]: 12: Hoare triple {793#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {792#false} is VALID [2022-02-21 04:17:06,404 INFO L290 TraceCheckUtils]: 13: Hoare triple {792#false} assume { :end_inline_processEnvironment__wrappee__base } true; {792#false} is VALID [2022-02-21 04:17:06,404 INFO L290 TraceCheckUtils]: 14: Hoare triple {792#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {792#false} is VALID [2022-02-21 04:17:06,405 INFO L290 TraceCheckUtils]: 15: Hoare triple {792#false} assume { :end_inline_processEnvironment } true; {792#false} is VALID [2022-02-21 04:17:06,405 INFO L290 TraceCheckUtils]: 16: Hoare triple {792#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {792#false} is VALID [2022-02-21 04:17:06,406 INFO L290 TraceCheckUtils]: 17: Hoare triple {792#false} __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; {792#false} is VALID [2022-02-21 04:17:06,406 INFO L290 TraceCheckUtils]: 18: Hoare triple {792#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {792#false} is VALID [2022-02-21 04:17:06,406 INFO L290 TraceCheckUtils]: 19: Hoare triple {792#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {792#false} is VALID [2022-02-21 04:17:06,406 INFO L290 TraceCheckUtils]: 20: Hoare triple {792#false} assume { :end_inline_timeShift } true; {792#false} is VALID [2022-02-21 04:17:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:06,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:06,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577566668] [2022-02-21 04:17:06,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577566668] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:06,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:06,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:06,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843495503] [2022-02-21 04:17:06,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:06,408 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:06,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:06,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:06,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:06,410 INFO L87 Difference]: Start difference. First operand 149 states and 198 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,623 INFO L93 Difference]: Finished difference Result 210 states and 269 transitions. [2022-02-21 04:17:06,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:06,624 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,640 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:06,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 269 transitions. [2022-02-21 04:17:06,649 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2022-02-21 04:17:06,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 269 transitions. [2022-02-21 04:17:06,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2022-02-21 04:17:06,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2022-02-21 04:17:06,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 269 transitions. [2022-02-21 04:17:06,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:06,661 INFO L681 BuchiCegarLoop]: Abstraction has 210 states and 269 transitions. [2022-02-21 04:17:06,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 269 transitions. [2022-02-21 04:17:06,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-02-21 04:17:06,695 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:06,696 INFO L82 GeneralOperation]: Start isEquivalent. First operand 210 states and 269 transitions. Second operand has 210 states, 210 states have (on average 1.2809523809523808) internal successors, (269), 209 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,697 INFO L74 IsIncluded]: Start isIncluded. First operand 210 states and 269 transitions. Second operand has 210 states, 210 states have (on average 1.2809523809523808) internal successors, (269), 209 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,697 INFO L87 Difference]: Start difference. First operand 210 states and 269 transitions. Second operand has 210 states, 210 states have (on average 1.2809523809523808) internal successors, (269), 209 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,704 INFO L93 Difference]: Finished difference Result 210 states and 269 transitions. [2022-02-21 04:17:06,704 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 269 transitions. [2022-02-21 04:17:06,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:06,708 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:06,709 INFO L74 IsIncluded]: Start isIncluded. First operand has 210 states, 210 states have (on average 1.2809523809523808) internal successors, (269), 209 states have internal predecessors, (269), 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 210 states and 269 transitions. [2022-02-21 04:17:06,710 INFO L87 Difference]: Start difference. First operand has 210 states, 210 states have (on average 1.2809523809523808) internal successors, (269), 209 states have internal predecessors, (269), 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 210 states and 269 transitions. [2022-02-21 04:17:06,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,716 INFO L93 Difference]: Finished difference Result 210 states and 269 transitions. [2022-02-21 04:17:06,716 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 269 transitions. [2022-02-21 04:17:06,717 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:06,717 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:06,717 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:06,717 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 210 states have (on average 1.2809523809523808) internal successors, (269), 209 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 269 transitions. [2022-02-21 04:17:06,723 INFO L704 BuchiCegarLoop]: Abstraction has 210 states and 269 transitions. [2022-02-21 04:17:06,724 INFO L587 BuchiCegarLoop]: Abstraction has 210 states and 269 transitions. [2022-02-21 04:17:06,724 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:06,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 210 states and 269 transitions. [2022-02-21 04:17:06,726 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2022-02-21 04:17:06,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:06,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:06,730 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:06,730 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:06,731 INFO L791 eck$LassoCheckResult]: Stem: 1163#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1072#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1008#L931 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1009#L924 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1135#L939 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1103#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1104#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1078#L716-2 [2022-02-21 04:17:06,731 INFO L793 eck$LassoCheckResult]: Loop: 1078#L716-2 assume !false; 1036#L717 assume test_~splverifierCounter~0#1 < 4; 1037#L718 test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1138#L726 assume !(0 != test_~tmp~7#1); 1124#L726-2 test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 1063#L736 assume !(0 != test_~tmp___0~1#1); 1065#L736-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 1093#L746 assume 0 != test_~tmp___2~0#1; 1120#L752-2 assume { :begin_inline_timeShift } true; 1121#L535 assume !(0 != ~pumpRunning~0); 1136#L535-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1132#L593 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1114#L567-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 1014#L855-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 1015#L860-1 isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; 1122#L695-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1123#L695-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1039#L701-1 processEnvironment__wrappee__highWaterSensor_#t~ret28#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret28#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1; 1040#L571-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1141#L559-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1151#L567-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1100#L593-1 assume { :end_inline_processEnvironment } true; 1101#L542-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1052#L815-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1042#L884 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 1044#L890-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1077#L552 assume { :end_inline_timeShift } true; 1078#L716-2 [2022-02-21 04:17:06,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:06,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780101041] [2022-02-21 04:17:06,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,755 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,772 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:06,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,773 INFO L85 PathProgramCache]: Analyzing trace with hash -875885171, now seen corresponding path program 1 times [2022-02-21 04:17:06,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666934873] [2022-02-21 04:17:06,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,782 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,786 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:06,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,787 INFO L85 PathProgramCache]: Analyzing trace with hash -500597431, now seen corresponding path program 1 times [2022-02-21 04:17:06,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740588319] [2022-02-21 04:17:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:06,856 INFO L290 TraceCheckUtils]: 0: Hoare triple {1641#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,857 INFO L290 TraceCheckUtils]: 1: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,857 INFO L290 TraceCheckUtils]: 2: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,858 INFO L290 TraceCheckUtils]: 3: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,858 INFO L290 TraceCheckUtils]: 4: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,861 INFO L290 TraceCheckUtils]: 5: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,862 INFO L290 TraceCheckUtils]: 6: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,863 INFO L290 TraceCheckUtils]: 7: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume !false; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,864 INFO L290 TraceCheckUtils]: 8: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,865 INFO L290 TraceCheckUtils]: 9: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,865 INFO L290 TraceCheckUtils]: 10: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~7#1); {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,866 INFO L290 TraceCheckUtils]: 11: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,866 INFO L290 TraceCheckUtils]: 12: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,867 INFO L290 TraceCheckUtils]: 13: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,867 INFO L290 TraceCheckUtils]: 14: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,868 INFO L290 TraceCheckUtils]: 15: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,868 INFO L290 TraceCheckUtils]: 16: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,869 INFO L290 TraceCheckUtils]: 17: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,869 INFO L290 TraceCheckUtils]: 18: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,870 INFO L290 TraceCheckUtils]: 19: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,870 INFO L290 TraceCheckUtils]: 20: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,871 INFO L290 TraceCheckUtils]: 21: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,871 INFO L290 TraceCheckUtils]: 22: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,871 INFO L290 TraceCheckUtils]: 23: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,872 INFO L290 TraceCheckUtils]: 24: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret28#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret28#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,872 INFO L290 TraceCheckUtils]: 25: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,873 INFO L290 TraceCheckUtils]: 26: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,873 INFO L290 TraceCheckUtils]: 27: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,874 INFO L290 TraceCheckUtils]: 28: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {1643#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,874 INFO L290 TraceCheckUtils]: 29: Hoare triple {1643#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; {1644#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:06,875 INFO L290 TraceCheckUtils]: 30: Hoare triple {1644#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; {1645#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} is VALID [2022-02-21 04:17:06,875 INFO L290 TraceCheckUtils]: 31: Hoare triple {1645#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {1642#false} is VALID [2022-02-21 04:17:06,875 INFO L290 TraceCheckUtils]: 32: Hoare triple {1642#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1642#false} is VALID [2022-02-21 04:17:06,876 INFO L290 TraceCheckUtils]: 33: Hoare triple {1642#false} assume { :end_inline_timeShift } true; {1642#false} is VALID [2022-02-21 04:17:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:06,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:06,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740588319] [2022-02-21 04:17:06,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740588319] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:06,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:06,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:06,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334751125] [2022-02-21 04:17:06,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:07,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:07,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:07,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:07,109 INFO L87 Difference]: Start difference. First operand 210 states and 269 transitions. cyclomatic complexity: 61 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:07,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,885 INFO L93 Difference]: Finished difference Result 725 states and 924 transitions. [2022-02-21 04:17:07,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:07,885 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:07,914 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:07,916 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 725 states and 924 transitions. [2022-02-21 04:17:07,946 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 531 [2022-02-21 04:17:07,975 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 725 states to 725 states and 924 transitions. [2022-02-21 04:17:07,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 725 [2022-02-21 04:17:07,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 725 [2022-02-21 04:17:07,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 725 states and 924 transitions. [2022-02-21 04:17:07,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:07,978 INFO L681 BuchiCegarLoop]: Abstraction has 725 states and 924 transitions. [2022-02-21 04:17:07,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states and 924 transitions. [2022-02-21 04:17:07,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 413. [2022-02-21 04:17:07,997 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:07,998 INFO L82 GeneralOperation]: Start isEquivalent. First operand 725 states and 924 transitions. Second operand has 413 states, 413 states have (on average 1.2663438256658595) internal successors, (523), 412 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:07,999 INFO L74 IsIncluded]: Start isIncluded. First operand 725 states and 924 transitions. Second operand has 413 states, 413 states have (on average 1.2663438256658595) internal successors, (523), 412 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:08,000 INFO L87 Difference]: Start difference. First operand 725 states and 924 transitions. Second operand has 413 states, 413 states have (on average 1.2663438256658595) internal successors, (523), 412 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:08,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,038 INFO L93 Difference]: Finished difference Result 725 states and 924 transitions. [2022-02-21 04:17:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 924 transitions. [2022-02-21 04:17:08,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:08,039 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:08,041 INFO L74 IsIncluded]: Start isIncluded. First operand has 413 states, 413 states have (on average 1.2663438256658595) internal successors, (523), 412 states have internal predecessors, (523), 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 725 states and 924 transitions. [2022-02-21 04:17:08,042 INFO L87 Difference]: Start difference. First operand has 413 states, 413 states have (on average 1.2663438256658595) internal successors, (523), 412 states have internal predecessors, (523), 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 725 states and 924 transitions. [2022-02-21 04:17:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:08,065 INFO L93 Difference]: Finished difference Result 725 states and 924 transitions. [2022-02-21 04:17:08,065 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 924 transitions. [2022-02-21 04:17:08,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:08,066 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:08,066 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:08,066 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:08,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 413 states have (on average 1.2663438256658595) internal successors, (523), 412 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:08,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 523 transitions. [2022-02-21 04:17:08,076 INFO L704 BuchiCegarLoop]: Abstraction has 413 states and 523 transitions. [2022-02-21 04:17:08,076 INFO L587 BuchiCegarLoop]: Abstraction has 413 states and 523 transitions. [2022-02-21 04:17:08,076 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:08,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 413 states and 523 transitions. [2022-02-21 04:17:08,078 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 292 [2022-02-21 04:17:08,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:08,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:08,079 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:08,079 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:08,080 INFO L791 eck$LassoCheckResult]: Stem: 2556#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2451#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2383#L931 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2384#L924 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 2515#L939 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2481#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2482#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2552#L716-2 [2022-02-21 04:17:08,080 INFO L793 eck$LassoCheckResult]: Loop: 2552#L716-2 assume !false; 2743#L717 assume test_~splverifierCounter~0#1 < 4; 2526#L718 test_~tmp~7#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 2524#L726 assume !(0 != test_~tmp~7#1); 2510#L726-2 test_~tmp___0~1#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 2440#L736 assume !(0 != test_~tmp___0~1#1); 2442#L736-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 2472#L746 assume 0 != test_~tmp___2~0#1; 2761#L752-2 assume { :begin_inline_timeShift } true; 2519#L535 assume !(0 != ~pumpRunning~0); 2520#L535-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2511#L593 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2495#L567-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 2389#L855-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 2390#L860-1 isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1; 2504#L695-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2505#L695-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2414#L701-1 processEnvironment__wrappee__highWaterSensor_#t~ret28#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret28#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret28#1; 2415#L571-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2531#L559-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2542#L567-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2477#L593-1 assume { :end_inline_processEnvironment } true; 2750#L542-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 2749#L815-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 2748#L884 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 2578#L847 __utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 2579#L890 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2745#L890-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2744#L552 assume { :end_inline_timeShift } true; 2552#L716-2 [2022-02-21 04:17:08,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:08,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681246960] [2022-02-21 04:17:08,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,107 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:08,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,108 INFO L85 PathProgramCache]: Analyzing trace with hash 89193952, now seen corresponding path program 1 times [2022-02-21 04:17:08,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565723078] [2022-02-21 04:17:08,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,121 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,125 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:08,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,126 INFO L85 PathProgramCache]: Analyzing trace with hash -36540772, now seen corresponding path program 1 times [2022-02-21 04:17:08,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665181205] [2022-02-21 04:17:08,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,140 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,161 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:11,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:11 BoogieIcfgContainer [2022-02-21 04:17:11,026 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:11,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:11,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:11,027 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:11,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:05" (3/4) ... [2022-02-21 04:17:11,030 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:11,071 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:11,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:11,073 INFO L158 Benchmark]: Toolchain (without parser) took 7278.28ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 81.2MB in the beginning and 41.3MB in the end (delta: 39.9MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,073 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:11,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.48ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 69.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.69ms. Allocated memory is still 107.0MB. Free memory was 69.9MB in the beginning and 65.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,076 INFO L158 Benchmark]: Boogie Preprocessor took 43.62ms. Allocated memory is still 107.0MB. Free memory was 65.8MB in the beginning and 63.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,077 INFO L158 Benchmark]: RCFGBuilder took 695.70ms. Allocated memory is still 107.0MB. Free memory was 63.0MB in the beginning and 76.5MB in the end (delta: -13.6MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,077 INFO L158 Benchmark]: BuchiAutomizer took 5999.05ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 76.3MB in the beginning and 44.3MB in the end (delta: 32.0MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,078 INFO L158 Benchmark]: Witness Printer took 44.39ms. Allocated memory is still 157.3MB. Free memory was 44.3MB in the beginning and 41.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.48ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 69.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.69ms. Allocated memory is still 107.0MB. Free memory was 69.9MB in the beginning and 65.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.62ms. Allocated memory is still 107.0MB. Free memory was 65.8MB in the beginning and 63.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 695.70ms. Allocated memory is still 107.0MB. Free memory was 63.0MB in the beginning and 76.5MB in the end (delta: -13.6MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 5999.05ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 76.3MB in the beginning and 44.3MB in the end (delta: 32.0MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. * Witness Printer took 44.39ms. Allocated memory is still 157.3MB. Free memory was 44.3MB in the beginning and 41.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 6 locations. The remainder module has 413 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 312 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 413 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1499 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1499 mSDsluCounter, 1711 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1008 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 703 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 716]: 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=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ae65768=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, tmp___0=1, \result=0, \result=1, retValue_acc=1, \result=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@510294f4=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7916ef2a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28b708af=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a062ea6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4feb1fa9=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b0f2196=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@794c653=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@877bb63=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22cf66ad=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55f1739c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 716]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L527] int pumpRunning = 0; [L528] int systemActive = 1; [L772] int waterLevel = 1; [L773] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L935] int retValue_acc ; [L938] retValue_acc = 1 [L939] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L707] int splverifierCounter ; [L708] int tmp ; [L709] int tmp___0 ; [L710] int tmp___1 ; [L711] int tmp___2 ; [L714] splverifierCounter = 0 Loop: [L716] COND TRUE 1 [L718] COND TRUE splverifierCounter < 4 [L724] tmp = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp)) [L734] tmp___0 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___0)) [L744] tmp___2 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___2) [L759] CALL timeShift() [L535] COND FALSE !(\read(pumpRunning)) [L542] COND TRUE \read(systemActive) [L544] CALL processEnvironment() [L590] int tmp ; [L593] COND FALSE !(\read(pumpRunning)) [L608] CALL processEnvironment__wrappee__highWaterSensor() [L564] int tmp ; [L567] COND TRUE ! pumpRunning [L569] CALL, EXPR isHighWaterLevel() [L687] int retValue_acc ; [L688] int tmp ; [L689] int tmp___0 ; [L693] CALL, EXPR isHighWaterSensorDry() [L852] int retValue_acc ; [L855] COND TRUE waterLevel < 2 [L856] retValue_acc = 1 [L857] return (retValue_acc); [L693] RET, EXPR isHighWaterSensorDry() [L693] tmp = isHighWaterSensorDry() [L695] COND TRUE \read(tmp) [L696] tmp___0 = 0 [L700] retValue_acc = tmp___0 [L701] return (retValue_acc); [L569] RET, EXPR isHighWaterLevel() [L569] tmp = isHighWaterLevel() [L571] COND FALSE !(\read(tmp)) [L577] FCALL processEnvironment__wrappee__base() [L608] RET processEnvironment__wrappee__highWaterSensor() [L544] RET processEnvironment() [L550] CALL __utac_acc__Specification3_spec__1() [L876] int tmp ; [L877] int tmp___0 ; [L878] int tmp___1 ; [L882] CALL, EXPR isMethaneLevelCritical() [L811] int retValue_acc ; [L814] retValue_acc = methaneLevelCritical [L815] return (retValue_acc); [L882] RET, EXPR isMethaneLevelCritical() [L882] tmp = isMethaneLevelCritical() [L884] COND FALSE !(\read(tmp)) [L888] CALL, EXPR getWaterLevel() [L843] int retValue_acc ; [L846] retValue_acc = waterLevel [L847] return (retValue_acc); [L888] RET, EXPR getWaterLevel() [L888] tmp___0 = getWaterLevel() [L890] COND FALSE !(tmp___0 == 2) [L550] RET __utac_acc__Specification3_spec__1() [L759] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:11,130 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)