./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product59.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 bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:59,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:59,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:59,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:59,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:59,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:59,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:59,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:59,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:59,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:59,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:59,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:59,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:59,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:59,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:59,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:59,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:59,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:59,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:59,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:59,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:59,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:59,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:59,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:59,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:59,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:59,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:59,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:59,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:59,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:59,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:59,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:59,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:59,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:59,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:59,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:59,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:59,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:59,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:59,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:59,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:59,457 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:59,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:59,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:59,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:59,491 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:59,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:59,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:59,493 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:59,493 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:59,493 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:59,493 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:59,494 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:59,494 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:59,494 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:59,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:59,494 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:59,494 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:59,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:59,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:59,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:59,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:59,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:59,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:59,495 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:59,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:59,496 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:59,496 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:59,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:59,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:59,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:59,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:59,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:59,498 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:59,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c [2022-02-21 04:18:59,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:59,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:59,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:59,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:59,726 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:59,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2022-02-21 04:18:59,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24adfe13e/16c4513f67c741f9ad8ec9eaa96a6269/FLAG9648922cb [2022-02-21 04:19:00,146 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:19:00,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2022-02-21 04:19:00,155 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24adfe13e/16c4513f67c741f9ad8ec9eaa96a6269/FLAG9648922cb [2022-02-21 04:19:00,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24adfe13e/16c4513f67c741f9ad8ec9eaa96a6269 [2022-02-21 04:19:00,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:19:00,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:19:00,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:19:00,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:19:00,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:19:00,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:00,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f5b8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00, skipping insertion in model container [2022-02-21 04:19:00,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:00,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:19:00,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:19:00,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c[17002,17015] [2022-02-21 04:19:00,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:19:00,867 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:19:00,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c[17002,17015] [2022-02-21 04:19:00,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:19:00,956 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:19:00,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00 WrapperNode [2022-02-21 04:19:00,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:19:00,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:19:00,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:19:00,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:19:00,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:00,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:01,043 INFO L137 Inliner]: procedures = 59, calls = 161, calls flagged for inlining = 58, calls inlined = 104, statements flattened = 772 [2022-02-21 04:19:01,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:19:01,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:19:01,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:19:01,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:19:01,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:01,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:01,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:01,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:01,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:01,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:01,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:01,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:19:01,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:19:01,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:19:01,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:19:01,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (1/1) ... [2022-02-21 04:19:01,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:19:01,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:19:01,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:19:01,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:19:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:19:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:19:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:19:01,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:19:01,279 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:19:01,280 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:19:01,722 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:19:01,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:19:01,728 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:19:01,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:19:01 BoogieIcfgContainer [2022-02-21 04:19:01,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:19:01,730 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:19:01,730 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:19:01,736 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:19:01,737 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:19:01,737 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:19:00" (1/3) ... [2022-02-21 04:19:01,738 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e9e7a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:19:01, skipping insertion in model container [2022-02-21 04:19:01,738 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:19:01,738 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:19:00" (2/3) ... [2022-02-21 04:19:01,739 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e9e7a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:19:01, skipping insertion in model container [2022-02-21 04:19:01,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:19:01,739 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:19:01" (3/3) ... [2022-02-21 04:19:01,740 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2022-02-21 04:19:01,782 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:19:01,783 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:19:01,783 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:19:01,783 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:19:01,783 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:19:01,784 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:19:01,784 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:19:01,784 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:19:01,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:01,869 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2022-02-21 04:19:01,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:01,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:01,874 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:01,874 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:01,874 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:19:01,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:01,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2022-02-21 04:19:01,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:01,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:01,904 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:01,904 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:01,908 INFO L791 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 134#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 117#L1016true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 113#L1009true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 118#L1024true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 164#L980true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 200#L953true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 153#L851true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 181#L174-2true [2022-02-21 04:19:01,908 INFO L793 eck$LassoCheckResult]: Loop: 181#L174-2true assume !false; 109#L175true assume test_~splverifierCounter~0#1 < 4; 135#L176true test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 63#L184true assume !(0 != test_~tmp~0#1); 151#L184-2true test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 166#L194true assume !(0 != test_~tmp___0~0#1); 196#L194-2true test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 93#L204true assume 0 != test_~tmp___2~0#1; 192#L210-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 115#L376true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 129#L861true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 91#L247true assume !(0 != ~pumpRunning~0); 149#L247-2true assume !(0 != ~systemActive~0); 9#L254-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 178#L133true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 154#L872true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 54#L872-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 141#L264true assume { :end_inline_timeShift } true; 181#L174-2true [2022-02-21 04:19:01,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:01,912 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:19:01,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:01,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98396207] [2022-02-21 04:19:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:01,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:02,039 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:02,089 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:02,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:02,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1566070476, now seen corresponding path program 1 times [2022-02-21 04:19:02,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:02,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9720736] [2022-02-21 04:19:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:02,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:02,115 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:02,121 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:02,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:02,123 INFO L85 PathProgramCache]: Analyzing trace with hash 226718069, now seen corresponding path program 1 times [2022-02-21 04:19:02,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:02,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909940879] [2022-02-21 04:19:02,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:02,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:02,244 INFO L290 TraceCheckUtils]: 0: Hoare triple {208#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; {210#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:02,245 INFO L290 TraceCheckUtils]: 1: Hoare triple {210#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; {210#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:02,246 INFO L290 TraceCheckUtils]: 2: Hoare triple {210#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {210#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:19:02,246 INFO L290 TraceCheckUtils]: 3: Hoare triple {210#(= 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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; {211#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:19:02,247 INFO L290 TraceCheckUtils]: 4: Hoare triple {211#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; {212#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} is VALID [2022-02-21 04:19:02,248 INFO L290 TraceCheckUtils]: 5: Hoare triple {212#(= |ULTIMATE.start_main_~tmp~10#1| ~systemActive~0)} assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,248 INFO L290 TraceCheckUtils]: 6: Hoare triple {213#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,248 INFO L290 TraceCheckUtils]: 7: Hoare triple {213#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,249 INFO L290 TraceCheckUtils]: 8: Hoare triple {213#(not (= 0 ~systemActive~0))} assume !false; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,249 INFO L290 TraceCheckUtils]: 9: Hoare triple {213#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,250 INFO L290 TraceCheckUtils]: 10: Hoare triple {213#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,250 INFO L290 TraceCheckUtils]: 11: Hoare triple {213#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,251 INFO L290 TraceCheckUtils]: 12: Hoare triple {213#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,252 INFO L290 TraceCheckUtils]: 13: Hoare triple {213#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,252 INFO L290 TraceCheckUtils]: 14: Hoare triple {213#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,253 INFO L290 TraceCheckUtils]: 15: Hoare triple {213#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,253 INFO L290 TraceCheckUtils]: 16: Hoare triple {213#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,254 INFO L290 TraceCheckUtils]: 17: Hoare triple {213#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,254 INFO L290 TraceCheckUtils]: 18: Hoare triple {213#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,254 INFO L290 TraceCheckUtils]: 19: Hoare triple {213#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {213#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:19:02,255 INFO L290 TraceCheckUtils]: 20: Hoare triple {213#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {209#false} is VALID [2022-02-21 04:19:02,255 INFO L290 TraceCheckUtils]: 21: Hoare triple {209#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {209#false} is VALID [2022-02-21 04:19:02,255 INFO L290 TraceCheckUtils]: 22: Hoare triple {209#false} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {209#false} is VALID [2022-02-21 04:19:02,256 INFO L290 TraceCheckUtils]: 23: Hoare triple {209#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {209#false} is VALID [2022-02-21 04:19:02,257 INFO L290 TraceCheckUtils]: 24: Hoare triple {209#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {209#false} is VALID [2022-02-21 04:19:02,257 INFO L290 TraceCheckUtils]: 25: Hoare triple {209#false} assume { :end_inline_timeShift } true; {209#false} is VALID [2022-02-21 04:19:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:19:02,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:02,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909940879] [2022-02-21 04:19:02,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909940879] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:02,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:02,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:19:02,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259810647] [2022-02-21 04:19:02,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:02,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:02,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:19:02,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:19:02,458 INFO L87 Difference]: Start difference. First operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:03,347 INFO L93 Difference]: Finished difference Result 459 states and 600 transitions. [2022-02-21 04:19:03,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:19:03,348 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,372 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:03,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 459 states and 600 transitions. [2022-02-21 04:19:03,400 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 297 [2022-02-21 04:19:03,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 459 states to 429 states and 570 transitions. [2022-02-21 04:19:03,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 429 [2022-02-21 04:19:03,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 429 [2022-02-21 04:19:03,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 429 states and 570 transitions. [2022-02-21 04:19:03,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:03,425 INFO L681 BuchiCegarLoop]: Abstraction has 429 states and 570 transitions. [2022-02-21 04:19:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states and 570 transitions. [2022-02-21 04:19:03,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 248. [2022-02-21 04:19:03,485 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:03,489 INFO L82 GeneralOperation]: Start isEquivalent. First operand 429 states and 570 transitions. Second operand has 248 states, 248 states have (on average 1.3266129032258065) internal successors, (329), 247 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,491 INFO L74 IsIncluded]: Start isIncluded. First operand 429 states and 570 transitions. Second operand has 248 states, 248 states have (on average 1.3266129032258065) internal successors, (329), 247 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,495 INFO L87 Difference]: Start difference. First operand 429 states and 570 transitions. Second operand has 248 states, 248 states have (on average 1.3266129032258065) internal successors, (329), 247 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:03,506 INFO L93 Difference]: Finished difference Result 429 states and 570 transitions. [2022-02-21 04:19:03,507 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 570 transitions. [2022-02-21 04:19:03,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:03,514 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:03,515 INFO L74 IsIncluded]: Start isIncluded. First operand has 248 states, 248 states have (on average 1.3266129032258065) internal successors, (329), 247 states have internal predecessors, (329), 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 429 states and 570 transitions. [2022-02-21 04:19:03,515 INFO L87 Difference]: Start difference. First operand has 248 states, 248 states have (on average 1.3266129032258065) internal successors, (329), 247 states have internal predecessors, (329), 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 429 states and 570 transitions. [2022-02-21 04:19:03,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:03,525 INFO L93 Difference]: Finished difference Result 429 states and 570 transitions. [2022-02-21 04:19:03,525 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 570 transitions. [2022-02-21 04:19:03,525 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:03,526 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:03,526 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:03,526 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:03,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 248 states have (on average 1.3266129032258065) internal successors, (329), 247 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 329 transitions. [2022-02-21 04:19:03,533 INFO L704 BuchiCegarLoop]: Abstraction has 248 states and 329 transitions. [2022-02-21 04:19:03,533 INFO L587 BuchiCegarLoop]: Abstraction has 248 states and 329 transitions. [2022-02-21 04:19:03,533 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:19:03,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 329 transitions. [2022-02-21 04:19:03,536 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2022-02-21 04:19:03,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:03,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:03,537 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:03,538 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:03,538 INFO L791 eck$LassoCheckResult]: Stem: 861#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 768#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 711#L1016 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 698#L1009 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 699#L1024 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 716#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 843#L953 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 824#L851 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 802#L174-2 [2022-02-21 04:19:03,538 INFO L793 eck$LassoCheckResult]: Loop: 802#L174-2 assume !false; 679#L175 assume test_~splverifierCounter~0#1 < 4; 680#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 771#L184 assume !(0 != test_~tmp~0#1); 820#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 821#L194 assume !(0 != test_~tmp___0~0#1); 722#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 855#L204 assume 0 != test_~tmp___2~0#1; 703#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 707#L376 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 708#L861 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 760#L247 assume !(0 != ~pumpRunning~0); 815#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 799#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 761#L279-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 763#L271-3 assume { :end_inline_processEnvironment__wrappee__base } true; 783#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 746#L305-1 assume { :end_inline_processEnvironment } true; 705#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 706#L133 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 826#L872 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 730#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 801#L264 assume { :end_inline_timeShift } true; 802#L174-2 [2022-02-21 04:19:03,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:03,539 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:19:03,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:03,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766205678] [2022-02-21 04:19:03,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:03,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:03,566 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:03,585 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:03,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:03,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1867743236, now seen corresponding path program 1 times [2022-02-21 04:19:03,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:03,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815092745] [2022-02-21 04:19:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:03,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:03,599 INFO L290 TraceCheckUtils]: 0: Hoare triple {1788#true} assume !false; {1788#true} is VALID [2022-02-21 04:19:03,599 INFO L290 TraceCheckUtils]: 1: Hoare triple {1788#true} assume test_~splverifierCounter~0#1 < 4; {1788#true} is VALID [2022-02-21 04:19:03,600 INFO L290 TraceCheckUtils]: 2: Hoare triple {1788#true} test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {1788#true} is VALID [2022-02-21 04:19:03,600 INFO L290 TraceCheckUtils]: 3: Hoare triple {1788#true} assume !(0 != test_~tmp~0#1); {1788#true} is VALID [2022-02-21 04:19:03,600 INFO L290 TraceCheckUtils]: 4: Hoare triple {1788#true} test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {1788#true} is VALID [2022-02-21 04:19:03,600 INFO L290 TraceCheckUtils]: 5: Hoare triple {1788#true} assume !(0 != test_~tmp___0~0#1); {1788#true} is VALID [2022-02-21 04:19:03,600 INFO L290 TraceCheckUtils]: 6: Hoare triple {1788#true} test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {1788#true} is VALID [2022-02-21 04:19:03,600 INFO L290 TraceCheckUtils]: 7: Hoare triple {1788#true} assume 0 != test_~tmp___2~0#1; {1788#true} is VALID [2022-02-21 04:19:03,601 INFO L290 TraceCheckUtils]: 8: Hoare triple {1788#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; {1788#true} is VALID [2022-02-21 04:19:03,601 INFO L290 TraceCheckUtils]: 9: Hoare triple {1788#true} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {1788#true} is VALID [2022-02-21 04:19:03,601 INFO L290 TraceCheckUtils]: 10: Hoare triple {1788#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1788#true} is VALID [2022-02-21 04:19:03,601 INFO L290 TraceCheckUtils]: 11: Hoare triple {1788#true} assume !(0 != ~pumpRunning~0); {1790#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:19:03,602 INFO L290 TraceCheckUtils]: 12: Hoare triple {1790#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1790#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:19:03,602 INFO L290 TraceCheckUtils]: 13: Hoare triple {1790#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {1790#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:19:03,602 INFO L290 TraceCheckUtils]: 14: Hoare triple {1790#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1789#false} is VALID [2022-02-21 04:19:03,602 INFO L290 TraceCheckUtils]: 15: Hoare triple {1789#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1789#false} is VALID [2022-02-21 04:19:03,603 INFO L290 TraceCheckUtils]: 16: Hoare triple {1789#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1789#false} is VALID [2022-02-21 04:19:03,603 INFO L290 TraceCheckUtils]: 17: Hoare triple {1789#false} assume { :end_inline_processEnvironment } true; {1789#false} is VALID [2022-02-21 04:19:03,603 INFO L290 TraceCheckUtils]: 18: Hoare triple {1789#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {1789#false} is VALID [2022-02-21 04:19:03,603 INFO L290 TraceCheckUtils]: 19: Hoare triple {1789#false} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {1789#false} is VALID [2022-02-21 04:19:03,603 INFO L290 TraceCheckUtils]: 20: Hoare triple {1789#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {1789#false} is VALID [2022-02-21 04:19:03,604 INFO L290 TraceCheckUtils]: 21: Hoare triple {1789#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1789#false} is VALID [2022-02-21 04:19:03,604 INFO L290 TraceCheckUtils]: 22: Hoare triple {1789#false} assume { :end_inline_timeShift } true; {1789#false} is VALID [2022-02-21 04:19:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:19:03,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:03,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815092745] [2022-02-21 04:19:03,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815092745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:03,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:03,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:19:03,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301552549] [2022-02-21 04:19:03,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:03,605 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:03,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:03,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:19:03,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:19:03,606 INFO L87 Difference]: Start difference. First operand 248 states and 329 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:03,825 INFO L93 Difference]: Finished difference Result 313 states and 398 transitions. [2022-02-21 04:19:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:19:03,825 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,840 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 04:19:03,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 313 states and 398 transitions. [2022-02-21 04:19:03,847 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 221 [2022-02-21 04:19:03,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 313 states to 313 states and 398 transitions. [2022-02-21 04:19:03,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 313 [2022-02-21 04:19:03,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 313 [2022-02-21 04:19:03,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 313 states and 398 transitions. [2022-02-21 04:19:03,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:03,854 INFO L681 BuchiCegarLoop]: Abstraction has 313 states and 398 transitions. [2022-02-21 04:19:03,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states and 398 transitions. [2022-02-21 04:19:03,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2022-02-21 04:19:03,858 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:03,859 INFO L82 GeneralOperation]: Start isEquivalent. First operand 313 states and 398 transitions. Second operand has 313 states, 313 states have (on average 1.2715654952076678) internal successors, (398), 312 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,859 INFO L74 IsIncluded]: Start isIncluded. First operand 313 states and 398 transitions. Second operand has 313 states, 313 states have (on average 1.2715654952076678) internal successors, (398), 312 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,860 INFO L87 Difference]: Start difference. First operand 313 states and 398 transitions. Second operand has 313 states, 313 states have (on average 1.2715654952076678) internal successors, (398), 312 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:03,865 INFO L93 Difference]: Finished difference Result 313 states and 398 transitions. [2022-02-21 04:19:03,865 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 398 transitions. [2022-02-21 04:19:03,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:03,866 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:03,866 INFO L74 IsIncluded]: Start isIncluded. First operand has 313 states, 313 states have (on average 1.2715654952076678) internal successors, (398), 312 states have internal predecessors, (398), 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 313 states and 398 transitions. [2022-02-21 04:19:03,867 INFO L87 Difference]: Start difference. First operand has 313 states, 313 states have (on average 1.2715654952076678) internal successors, (398), 312 states have internal predecessors, (398), 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 313 states and 398 transitions. [2022-02-21 04:19:03,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:03,872 INFO L93 Difference]: Finished difference Result 313 states and 398 transitions. [2022-02-21 04:19:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 398 transitions. [2022-02-21 04:19:03,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:03,873 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:03,873 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:03,873 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.2715654952076678) internal successors, (398), 312 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 398 transitions. [2022-02-21 04:19:03,879 INFO L704 BuchiCegarLoop]: Abstraction has 313 states and 398 transitions. [2022-02-21 04:19:03,894 INFO L587 BuchiCegarLoop]: Abstraction has 313 states and 398 transitions. [2022-02-21 04:19:03,894 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:19:03,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 398 transitions. [2022-02-21 04:19:03,895 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 221 [2022-02-21 04:19:03,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:03,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:03,896 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:03,896 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 04:19:03,896 INFO L791 eck$LassoCheckResult]: Stem: 2302#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2198#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2138#L1016 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2127#L1009 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2128#L1024 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2145#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2277#L953 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2257#L851 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2234#L174-2 [2022-02-21 04:19:03,896 INFO L793 eck$LassoCheckResult]: Loop: 2234#L174-2 assume !false; 2106#L175 assume test_~splverifierCounter~0#1 < 4; 2107#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 2201#L184 assume !(0 != test_~tmp~0#1); 2260#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 2282#L194 assume !(0 != test_~tmp___0~0#1); 2147#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 2296#L204 assume 0 != test_~tmp___2~0#1; 2130#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 2305#L376 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 2372#L861 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2371#L247 assume !(0 != ~pumpRunning~0); 2248#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2232#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2189#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2190#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2164#L146-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 2165#L425-3 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 2170#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2109#L431-1 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 2110#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2258#L271-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2216#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2176#L305-1 assume { :end_inline_processEnvironment } true; 2177#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 2390#L133 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 2386#L872 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 2244#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2233#L264 assume { :end_inline_timeShift } true; 2234#L174-2 [2022-02-21 04:19:03,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:03,897 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:19:03,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:03,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325231119] [2022-02-21 04:19:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:03,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:03,906 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:03,913 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:03,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:03,914 INFO L85 PathProgramCache]: Analyzing trace with hash 849815258, now seen corresponding path program 1 times [2022-02-21 04:19:03,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:03,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180267342] [2022-02-21 04:19:03,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:03,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:03,933 INFO L290 TraceCheckUtils]: 0: Hoare triple {3048#true} assume !false; {3048#true} is VALID [2022-02-21 04:19:03,933 INFO L290 TraceCheckUtils]: 1: Hoare triple {3048#true} assume test_~splverifierCounter~0#1 < 4; {3048#true} is VALID [2022-02-21 04:19:03,934 INFO L290 TraceCheckUtils]: 2: Hoare triple {3048#true} test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {3048#true} is VALID [2022-02-21 04:19:03,934 INFO L290 TraceCheckUtils]: 3: Hoare triple {3048#true} assume !(0 != test_~tmp~0#1); {3048#true} is VALID [2022-02-21 04:19:03,934 INFO L290 TraceCheckUtils]: 4: Hoare triple {3048#true} test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {3048#true} is VALID [2022-02-21 04:19:03,934 INFO L290 TraceCheckUtils]: 5: Hoare triple {3048#true} assume !(0 != test_~tmp___0~0#1); {3048#true} is VALID [2022-02-21 04:19:03,934 INFO L290 TraceCheckUtils]: 6: Hoare triple {3048#true} test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {3048#true} is VALID [2022-02-21 04:19:03,934 INFO L290 TraceCheckUtils]: 7: Hoare triple {3048#true} assume 0 != test_~tmp___2~0#1; {3048#true} is VALID [2022-02-21 04:19:03,935 INFO L290 TraceCheckUtils]: 8: Hoare triple {3048#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; {3048#true} is VALID [2022-02-21 04:19:03,935 INFO L290 TraceCheckUtils]: 9: Hoare triple {3048#true} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {3048#true} is VALID [2022-02-21 04:19:03,935 INFO L290 TraceCheckUtils]: 10: Hoare triple {3048#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {3048#true} is VALID [2022-02-21 04:19:03,935 INFO L290 TraceCheckUtils]: 11: Hoare triple {3048#true} assume !(0 != ~pumpRunning~0); {3048#true} is VALID [2022-02-21 04:19:03,936 INFO L290 TraceCheckUtils]: 12: Hoare triple {3048#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {3048#true} is VALID [2022-02-21 04:19:03,936 INFO L290 TraceCheckUtils]: 13: Hoare triple {3048#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {3048#true} is VALID [2022-02-21 04:19:03,936 INFO L290 TraceCheckUtils]: 14: Hoare triple {3048#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {3048#true} is VALID [2022-02-21 04:19:03,936 INFO L290 TraceCheckUtils]: 15: Hoare triple {3048#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {3050#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} is VALID [2022-02-21 04:19:03,937 INFO L290 TraceCheckUtils]: 16: Hoare triple {3050#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 1)} isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; {3051#(= |ULTIMATE.start_isHighWaterLevel_~tmp~4#1| 1)} is VALID [2022-02-21 04:19:03,937 INFO L290 TraceCheckUtils]: 17: Hoare triple {3051#(= |ULTIMATE.start_isHighWaterLevel_~tmp~4#1| 1)} assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; {3049#false} is VALID [2022-02-21 04:19:03,938 INFO L290 TraceCheckUtils]: 18: Hoare triple {3049#false} isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; {3049#false} is VALID [2022-02-21 04:19:03,938 INFO L290 TraceCheckUtils]: 19: Hoare triple {3049#false} processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; {3049#false} is VALID [2022-02-21 04:19:03,938 INFO L290 TraceCheckUtils]: 20: Hoare triple {3049#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {3049#false} is VALID [2022-02-21 04:19:03,938 INFO L290 TraceCheckUtils]: 21: Hoare triple {3049#false} assume { :end_inline_processEnvironment__wrappee__base } true; {3049#false} is VALID [2022-02-21 04:19:03,938 INFO L290 TraceCheckUtils]: 22: Hoare triple {3049#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {3049#false} is VALID [2022-02-21 04:19:03,938 INFO L290 TraceCheckUtils]: 23: Hoare triple {3049#false} assume { :end_inline_processEnvironment } true; {3049#false} is VALID [2022-02-21 04:19:03,939 INFO L290 TraceCheckUtils]: 24: Hoare triple {3049#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {3049#false} is VALID [2022-02-21 04:19:03,939 INFO L290 TraceCheckUtils]: 25: Hoare triple {3049#false} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {3049#false} is VALID [2022-02-21 04:19:03,939 INFO L290 TraceCheckUtils]: 26: Hoare triple {3049#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {3049#false} is VALID [2022-02-21 04:19:03,939 INFO L290 TraceCheckUtils]: 27: Hoare triple {3049#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {3049#false} is VALID [2022-02-21 04:19:03,940 INFO L290 TraceCheckUtils]: 28: Hoare triple {3049#false} assume { :end_inline_timeShift } true; {3049#false} is VALID [2022-02-21 04:19:03,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:19:03,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:03,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180267342] [2022-02-21 04:19:03,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180267342] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:03,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:03,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:19:03,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565888631] [2022-02-21 04:19:03,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:03,941 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:03,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:03,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:19:03,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:19:03,942 INFO L87 Difference]: Start difference. First operand 313 states and 398 transitions. cyclomatic complexity: 88 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:04,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:04,384 INFO L93 Difference]: Finished difference Result 612 states and 770 transitions. [2022-02-21 04:19:04,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-21 04:19:04,384 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:04,406 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:04,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 612 states and 770 transitions. [2022-02-21 04:19:04,422 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 438 [2022-02-21 04:19:04,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 612 states to 612 states and 770 transitions. [2022-02-21 04:19:04,441 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 612 [2022-02-21 04:19:04,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 612 [2022-02-21 04:19:04,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 612 states and 770 transitions. [2022-02-21 04:19:04,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:04,442 INFO L681 BuchiCegarLoop]: Abstraction has 612 states and 770 transitions. [2022-02-21 04:19:04,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states and 770 transitions. [2022-02-21 04:19:04,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 325. [2022-02-21 04:19:04,446 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:04,447 INFO L82 GeneralOperation]: Start isEquivalent. First operand 612 states and 770 transitions. Second operand has 325 states, 325 states have (on average 1.2615384615384615) internal successors, (410), 324 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:04,447 INFO L74 IsIncluded]: Start isIncluded. First operand 612 states and 770 transitions. Second operand has 325 states, 325 states have (on average 1.2615384615384615) internal successors, (410), 324 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:04,448 INFO L87 Difference]: Start difference. First operand 612 states and 770 transitions. Second operand has 325 states, 325 states have (on average 1.2615384615384615) internal successors, (410), 324 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:04,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:04,459 INFO L93 Difference]: Finished difference Result 612 states and 770 transitions. [2022-02-21 04:19:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 770 transitions. [2022-02-21 04:19:04,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:04,460 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:04,461 INFO L74 IsIncluded]: Start isIncluded. First operand has 325 states, 325 states have (on average 1.2615384615384615) internal successors, (410), 324 states have internal predecessors, (410), 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 612 states and 770 transitions. [2022-02-21 04:19:04,462 INFO L87 Difference]: Start difference. First operand has 325 states, 325 states have (on average 1.2615384615384615) internal successors, (410), 324 states have internal predecessors, (410), 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 612 states and 770 transitions. [2022-02-21 04:19:04,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:04,473 INFO L93 Difference]: Finished difference Result 612 states and 770 transitions. [2022-02-21 04:19:04,473 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 770 transitions. [2022-02-21 04:19:04,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:04,474 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:04,474 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:04,474 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 325 states have (on average 1.2615384615384615) internal successors, (410), 324 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 410 transitions. [2022-02-21 04:19:04,479 INFO L704 BuchiCegarLoop]: Abstraction has 325 states and 410 transitions. [2022-02-21 04:19:04,479 INFO L587 BuchiCegarLoop]: Abstraction has 325 states and 410 transitions. [2022-02-21 04:19:04,479 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:19:04,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states and 410 transitions. [2022-02-21 04:19:04,480 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 229 [2022-02-21 04:19:04,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:04,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:04,481 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:04,481 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 04:19:04,482 INFO L791 eck$LassoCheckResult]: Stem: 3873#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 3762#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3701#L1016 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3690#L1009 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3691#L1024 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3708#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3843#L953 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3823#L851 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3799#L174-2 [2022-02-21 04:19:04,482 INFO L793 eck$LassoCheckResult]: Loop: 3799#L174-2 assume !false; 3669#L175 assume test_~splverifierCounter~0#1 < 4; 3670#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 3765#L184 assume !(0 != test_~tmp~0#1); 3819#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 3820#L194 assume !(0 != test_~tmp___0~0#1); 3710#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 3876#L204 assume 0 != test_~tmp___2~0#1; 3961#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 3960#L376 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 3959#L861 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3958#L247 assume !(0 != ~pumpRunning~0); 3813#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3797#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3753#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3754#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3870#L146-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 3733#L425-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3734#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 3672#L431-1 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 3673#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3824#L271-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3780#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3737#L305-1 assume { :end_inline_processEnvironment } true; 3738#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 3991#L133 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 3825#L872 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 3719#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3798#L264 assume { :end_inline_timeShift } true; 3799#L174-2 [2022-02-21 04:19:04,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:04,483 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:19:04,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:04,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051344219] [2022-02-21 04:19:04,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:04,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:04,490 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:04,497 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:04,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:04,498 INFO L85 PathProgramCache]: Analyzing trace with hash 591649820, now seen corresponding path program 1 times [2022-02-21 04:19:04,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:04,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020314591] [2022-02-21 04:19:04,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:04,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:04,541 INFO L290 TraceCheckUtils]: 0: Hoare triple {5221#true} assume !false; {5221#true} is VALID [2022-02-21 04:19:04,542 INFO L290 TraceCheckUtils]: 1: Hoare triple {5221#true} assume test_~splverifierCounter~0#1 < 4; {5221#true} is VALID [2022-02-21 04:19:04,542 INFO L290 TraceCheckUtils]: 2: Hoare triple {5221#true} test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {5221#true} is VALID [2022-02-21 04:19:04,542 INFO L290 TraceCheckUtils]: 3: Hoare triple {5221#true} assume !(0 != test_~tmp~0#1); {5221#true} is VALID [2022-02-21 04:19:04,542 INFO L290 TraceCheckUtils]: 4: Hoare triple {5221#true} test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {5221#true} is VALID [2022-02-21 04:19:04,543 INFO L290 TraceCheckUtils]: 5: Hoare triple {5221#true} assume !(0 != test_~tmp___0~0#1); {5221#true} is VALID [2022-02-21 04:19:04,543 INFO L290 TraceCheckUtils]: 6: Hoare triple {5221#true} test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {5221#true} is VALID [2022-02-21 04:19:04,543 INFO L290 TraceCheckUtils]: 7: Hoare triple {5221#true} assume 0 != test_~tmp___2~0#1; {5221#true} is VALID [2022-02-21 04:19:04,543 INFO L290 TraceCheckUtils]: 8: Hoare triple {5221#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; {5221#true} is VALID [2022-02-21 04:19:04,543 INFO L290 TraceCheckUtils]: 9: Hoare triple {5221#true} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {5221#true} is VALID [2022-02-21 04:19:04,543 INFO L290 TraceCheckUtils]: 10: Hoare triple {5221#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {5221#true} is VALID [2022-02-21 04:19:04,544 INFO L290 TraceCheckUtils]: 11: Hoare triple {5221#true} assume !(0 != ~pumpRunning~0); {5221#true} is VALID [2022-02-21 04:19:04,544 INFO L290 TraceCheckUtils]: 12: Hoare triple {5221#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {5221#true} is VALID [2022-02-21 04:19:04,544 INFO L290 TraceCheckUtils]: 13: Hoare triple {5221#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {5221#true} is VALID [2022-02-21 04:19:04,544 INFO L290 TraceCheckUtils]: 14: Hoare triple {5221#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {5221#true} is VALID [2022-02-21 04:19:04,545 INFO L290 TraceCheckUtils]: 15: Hoare triple {5221#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {5223#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:04,545 INFO L290 TraceCheckUtils]: 16: Hoare triple {5223#(not (= 2 ~waterLevel~0))} isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; {5223#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:04,545 INFO L290 TraceCheckUtils]: 17: Hoare triple {5223#(not (= 2 ~waterLevel~0))} assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; {5223#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:04,546 INFO L290 TraceCheckUtils]: 18: Hoare triple {5223#(not (= 2 ~waterLevel~0))} isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; {5223#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:04,546 INFO L290 TraceCheckUtils]: 19: Hoare triple {5223#(not (= 2 ~waterLevel~0))} processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; {5223#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:04,547 INFO L290 TraceCheckUtils]: 20: Hoare triple {5223#(not (= 2 ~waterLevel~0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {5223#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:04,547 INFO L290 TraceCheckUtils]: 21: Hoare triple {5223#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {5223#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:04,547 INFO L290 TraceCheckUtils]: 22: Hoare triple {5223#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {5223#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:04,548 INFO L290 TraceCheckUtils]: 23: Hoare triple {5223#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {5223#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:19:04,548 INFO L290 TraceCheckUtils]: 24: Hoare triple {5223#(not (= 2 ~waterLevel~0))} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {5224#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:19:04,549 INFO L290 TraceCheckUtils]: 25: Hoare triple {5224#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {5225#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1|))} is VALID [2022-02-21 04:19:04,549 INFO L290 TraceCheckUtils]: 26: Hoare triple {5225#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~9#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); {5222#false} is VALID [2022-02-21 04:19:04,549 INFO L290 TraceCheckUtils]: 27: Hoare triple {5222#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {5222#false} is VALID [2022-02-21 04:19:04,549 INFO L290 TraceCheckUtils]: 28: Hoare triple {5222#false} assume { :end_inline_timeShift } true; {5222#false} is VALID [2022-02-21 04:19:04,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:19:04,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:04,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020314591] [2022-02-21 04:19:04,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020314591] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:04,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:04,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:19:04,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255924579] [2022-02-21 04:19:04,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:04,551 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:04,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:04,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:19:04,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:19:04,552 INFO L87 Difference]: Start difference. First operand 325 states and 410 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:05,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:05,630 INFO L93 Difference]: Finished difference Result 1408 states and 1768 transitions. [2022-02-21 04:19:05,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:19:05,630 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:05,646 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:05,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1408 states and 1768 transitions. [2022-02-21 04:19:05,693 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 979 [2022-02-21 04:19:05,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1408 states to 1408 states and 1768 transitions. [2022-02-21 04:19:05,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1408 [2022-02-21 04:19:05,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1408 [2022-02-21 04:19:05,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1408 states and 1768 transitions. [2022-02-21 04:19:05,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:05,744 INFO L681 BuchiCegarLoop]: Abstraction has 1408 states and 1768 transitions. [2022-02-21 04:19:05,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states and 1768 transitions. [2022-02-21 04:19:05,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 627. [2022-02-21 04:19:05,751 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:05,752 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1408 states and 1768 transitions. Second operand has 627 states, 627 states have (on average 1.251993620414673) internal successors, (785), 626 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:05,753 INFO L74 IsIncluded]: Start isIncluded. First operand 1408 states and 1768 transitions. Second operand has 627 states, 627 states have (on average 1.251993620414673) internal successors, (785), 626 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:05,754 INFO L87 Difference]: Start difference. First operand 1408 states and 1768 transitions. Second operand has 627 states, 627 states have (on average 1.251993620414673) internal successors, (785), 626 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:05,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:05,798 INFO L93 Difference]: Finished difference Result 1408 states and 1768 transitions. [2022-02-21 04:19:05,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1768 transitions. [2022-02-21 04:19:05,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:05,800 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:05,801 INFO L74 IsIncluded]: Start isIncluded. First operand has 627 states, 627 states have (on average 1.251993620414673) internal successors, (785), 626 states have internal predecessors, (785), 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 1408 states and 1768 transitions. [2022-02-21 04:19:05,802 INFO L87 Difference]: Start difference. First operand has 627 states, 627 states have (on average 1.251993620414673) internal successors, (785), 626 states have internal predecessors, (785), 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 1408 states and 1768 transitions. [2022-02-21 04:19:05,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:05,847 INFO L93 Difference]: Finished difference Result 1408 states and 1768 transitions. [2022-02-21 04:19:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1768 transitions. [2022-02-21 04:19:05,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:05,849 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:05,849 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:05,849 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 627 states have (on average 1.251993620414673) internal successors, (785), 626 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 785 transitions. [2022-02-21 04:19:05,861 INFO L704 BuchiCegarLoop]: Abstraction has 627 states and 785 transitions. [2022-02-21 04:19:05,861 INFO L587 BuchiCegarLoop]: Abstraction has 627 states and 785 transitions. [2022-02-21 04:19:05,861 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:19:05,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 627 states and 785 transitions. [2022-02-21 04:19:05,863 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 448 [2022-02-21 04:19:05,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:05,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:05,864 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:05,864 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:05,865 INFO L791 eck$LassoCheckResult]: Stem: 6892#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 6744#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 6679#L1016 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6668#L1009 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 6669#L1024 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 6686#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 6844#L953 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 6818#L851 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6819#L174-2 [2022-02-21 04:19:05,868 INFO L793 eck$LassoCheckResult]: Loop: 6819#L174-2 assume !false; 7148#L175 assume test_~splverifierCounter~0#1 < 4; 7149#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 7247#L184 assume !(0 != test_~tmp~0#1); 7245#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 7243#L194 assume !(0 != test_~tmp___0~0#1); 7241#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 7240#L204 assume 0 != test_~tmp___2~0#1; 7208#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 7207#L376 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 7206#L861 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 7065#L247 assume !(0 != ~pumpRunning~0); 7063#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 6787#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 6733#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 6734#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 6708#L146-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 6709#L425-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 6715#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 6650#L431-1 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 6651#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 6843#L271-2 assume { :end_inline_processEnvironment__wrappee__base } true; 7263#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 7261#L305-1 assume { :end_inline_processEnvironment } true; 6670#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 6671#L133 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 6821#L872 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 6822#L376-1 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 7155#L876 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 7154#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 7150#L264 assume { :end_inline_timeShift } true; 6819#L174-2 [2022-02-21 04:19:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-02-21 04:19:05,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:05,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217846655] [2022-02-21 04:19:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:05,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,880 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,889 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:05,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:05,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1620698583, now seen corresponding path program 1 times [2022-02-21 04:19:05,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:05,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853644504] [2022-02-21 04:19:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:05,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,894 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,899 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:05,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:05,899 INFO L85 PathProgramCache]: Analyzing trace with hash 808658382, now seen corresponding path program 1 times [2022-02-21 04:19:05,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:05,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529086365] [2022-02-21 04:19:05,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:05,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,909 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:05,919 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:08,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:19:08 BoogieIcfgContainer [2022-02-21 04:19:08,686 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:19:08,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:19:08,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:19:08,686 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:19:08,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:19:01" (3/4) ... [2022-02-21 04:19:08,688 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:19:08,733 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:19:08,733 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:19:08,734 INFO L158 Benchmark]: Toolchain (without parser) took 8217.86ms. Allocated memory was 73.4MB in the beginning and 157.3MB in the end (delta: 83.9MB). Free memory was 36.2MB in the beginning and 125.7MB in the end (delta: -89.4MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:08,734 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory was 53.3MB in the beginning and 53.3MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:19:08,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.47ms. Allocated memory is still 88.1MB. Free memory was 67.4MB in the beginning and 51.6MB in the end (delta: 15.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-02-21 04:19:08,735 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.45ms. Allocated memory is still 88.1MB. Free memory was 51.6MB in the beginning and 46.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:08,735 INFO L158 Benchmark]: Boogie Preprocessor took 42.73ms. Allocated memory is still 88.1MB. Free memory was 46.7MB in the beginning and 43.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:08,735 INFO L158 Benchmark]: RCFGBuilder took 642.70ms. Allocated memory is still 88.1MB. Free memory was 43.6MB in the beginning and 44.5MB in the end (delta: -825.1kB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:08,735 INFO L158 Benchmark]: BuchiAutomizer took 6955.37ms. Allocated memory was 88.1MB in the beginning and 157.3MB in the end (delta: 69.2MB). Free memory was 44.5MB in the beginning and 40.0MB in the end (delta: 4.4MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:08,736 INFO L158 Benchmark]: Witness Printer took 47.15ms. Allocated memory is still 157.3MB. Free memory was 40.0MB in the beginning and 125.7MB in the end (delta: -85.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:08,737 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 0.17ms. Allocated memory is still 73.4MB. Free memory was 53.3MB in the beginning and 53.3MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.47ms. Allocated memory is still 88.1MB. Free memory was 67.4MB in the beginning and 51.6MB in the end (delta: 15.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.45ms. Allocated memory is still 88.1MB. Free memory was 51.6MB in the beginning and 46.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.73ms. Allocated memory is still 88.1MB. Free memory was 46.7MB in the beginning and 43.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 642.70ms. Allocated memory is still 88.1MB. Free memory was 43.6MB in the beginning and 44.5MB in the end (delta: -825.1kB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6955.37ms. Allocated memory was 88.1MB in the beginning and 157.3MB in the end (delta: 69.2MB). Free memory was 44.5MB in the beginning and 40.0MB in the end (delta: 4.4MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. * Witness Printer took 47.15ms. Allocated memory is still 157.3MB. Free memory was 40.0MB in the beginning and 125.7MB in the end (delta: -85.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 627 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.2s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 1249 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 627 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2780 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2780 mSDsluCounter, 4136 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2862 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 1274 mSDtfsCounter, 295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 174]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3303ce42=29, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ae73060=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@123aa0bb=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10d2c973=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7566311c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a9d7e00=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@771b70aa=0, retValue_acc=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@235c8d21=0, methaneLevelCritical=0, tmp=1, retValue_acc=0, \result=1, \result=1, tmp=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30109065=0, tmp___2=29, \result=0, tmp=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38afc4f=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b67b8e7=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 174]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L845] int switchedOnBeforeTS ; [L894] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L1020] int retValue_acc ; [L1023] retValue_acc = 1 [L1024] return (retValue_acc); [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L961] CALL __utac_acc__Specification5_spec__1() [L850] switchedOnBeforeTS = 0 [L961] RET __utac_acc__Specification5_spec__1() [L962] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 Loop: [L174] COND TRUE 1 [L176] COND TRUE splverifierCounter < 4 [L182] tmp = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp)) [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp___2) [L219] CALL timeShift() [L245] CALL __utac_acc__Specification5_spec__2() [L859] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] switchedOnBeforeTS = isPumpRunning() [L245] RET __utac_acc__Specification5_spec__2() [L247] COND FALSE !(\read(pumpRunning)) [L254] COND TRUE \read(systemActive) [L256] CALL processEnvironment() [L302] int tmp ; [L305] COND FALSE !(\read(pumpRunning)) [L320] CALL processEnvironment__wrappee__highWaterSensor() [L276] int tmp ; [L279] COND TRUE ! pumpRunning [L281] CALL, EXPR isHighWaterLevel() [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L423] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L423] RET, EXPR isHighWaterSensorDry() [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); [L281] RET, EXPR isHighWaterLevel() [L281] tmp = isHighWaterLevel() [L283] COND FALSE !(\read(tmp)) [L289] FCALL processEnvironment__wrappee__base() [L320] RET processEnvironment__wrappee__highWaterSensor() [L256] RET processEnvironment() [L262] CALL __utac_acc__Specification5_spec__3() [L865] int tmp ; [L866] int tmp___0 ; [L870] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L870] RET, EXPR getWaterLevel() [L870] tmp = getWaterLevel() [L872] COND TRUE tmp != 2 [L874] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L874] RET, EXPR isPumpRunning() [L874] tmp___0 = isPumpRunning() [L876] COND FALSE !(\read(tmp___0)) [L262] RET __utac_acc__Specification5_spec__3() [L219] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:19:08,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)