./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product02.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_product02.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 dc16baed9582dc03b8c04a72a2e3374c4a73ebd0268e0a32bbf7f86bd3b5da48 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:13,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:13,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:13,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:13,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:13,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:13,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:13,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:13,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:13,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:13,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:13,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:13,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:13,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:13,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:13,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:13,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:13,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:13,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:13,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:13,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:13,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:13,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:13,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:13,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:13,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:13,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:13,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:13,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:13,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:13,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:13,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:13,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:13,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:13,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:13,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:13,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:13,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:13,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:13,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:13,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:13,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:13,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:13,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:13,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:13,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:13,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:13,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:13,458 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:13,458 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:13,458 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:13,458 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:13,459 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:13,459 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:13,459 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:13,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:13,460 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:13,460 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:13,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:13,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:13,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:13,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:13,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:13,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:13,461 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:13,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:13,461 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:13,461 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:13,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:13,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:13,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:13,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:13,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:13,463 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:13,464 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc16baed9582dc03b8c04a72a2e3374c4a73ebd0268e0a32bbf7f86bd3b5da48 [2022-02-21 04:18:13,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:13,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:13,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:13,688 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:13,691 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:13,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product02.cil.c [2022-02-21 04:18:13,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5f24cf1/46581148cddf4894a8817d877c0b2f46/FLAG0b64bfb1d [2022-02-21 04:18:14,090 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:14,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product02.cil.c [2022-02-21 04:18:14,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5f24cf1/46581148cddf4894a8817d877c0b2f46/FLAG0b64bfb1d [2022-02-21 04:18:14,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e5f24cf1/46581148cddf4894a8817d877c0b2f46 [2022-02-21 04:18:14,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:14,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:14,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:14,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:14,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:14,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da9150a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14, skipping insertion in model container [2022-02-21 04:18:14,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:14,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:14,703 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_product02.cil.c[14969,14982] [2022-02-21 04:18:14,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:14,718 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:14,774 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_product02.cil.c[14969,14982] [2022-02-21 04:18:14,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:14,798 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:14,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14 WrapperNode [2022-02-21 04:18:14,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:14,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:14,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:14,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:14,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,854 INFO L137 Inliner]: procedures = 52, calls = 148, calls flagged for inlining = 45, calls inlined = 40, statements flattened = 321 [2022-02-21 04:18:14,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:14,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:14,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:14,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:14,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:14,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:14,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:14,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:14,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (1/1) ... [2022-02-21 04:18:14,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:14,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:14,928 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 04:18:14,935 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 04:18:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:14,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:15,020 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:15,022 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:15,262 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:15,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:15,267 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:15,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:15 BoogieIcfgContainer [2022-02-21 04:18:15,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:15,269 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:15,269 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:15,271 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:15,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:15,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:14" (1/3) ... [2022-02-21 04:18:15,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4522a3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:15, skipping insertion in model container [2022-02-21 04:18:15,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:15,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:14" (2/3) ... [2022-02-21 04:18:15,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4522a3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:15, skipping insertion in model container [2022-02-21 04:18:15,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:15,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:15" (3/3) ... [2022-02-21 04:18:15,274 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product02.cil.c [2022-02-21 04:18:15,304 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:15,304 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:15,305 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:15,305 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:15,305 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:15,305 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:15,305 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:15,305 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:15,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 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 04:18:15,372 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2022-02-21 04:18:15,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:15,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:15,377 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:15,377 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:15,378 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:15,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 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 04:18:15,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2022-02-21 04:18:15,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:15,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:15,393 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:15,394 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:15,402 INFO L791 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~5#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 10#L779true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5#L772true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 70#L787true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 20#L875true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 21#L851true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 61#L711true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 38#L639-2true [2022-02-21 04:18:15,402 INFO L793 eck$LassoCheckResult]: Loop: 38#L639-2true assume !false; 41#L640true assume test_~splverifierCounter~0#1 < 4; 62#L641true test_~tmp~3#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 80#L649true assume !(0 != test_~tmp~3#1); 76#L649-2true test_~tmp___0~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 39#L659true assume !(0 != test_~tmp___0~0#1); 12#L659-2true test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 66#L669true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 59#L624true assume { :end_inline_startSystem } true; 84#L677-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 19#L579true __utac_acc__Specification5_spec__2_#t~ret45#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45#1;havoc __utac_acc__Specification5_spec__2_#t~ret45#1; 23#L721true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 57#L520true assume !(0 != ~pumpRunning~0); 15#L520-2true assume !(0 != ~systemActive~0); 49#L527-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 75#L497true __utac_acc__Specification5_spec__3_#t~ret46#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; 35#L732true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 81#L732-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 25#L537true assume { :end_inline_timeShift } true; 38#L639-2true [2022-02-21 04:18:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:15,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:15,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096083654] [2022-02-21 04:18:15,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:15,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:15,524 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:15,587 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:15,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1656478837, now seen corresponding path program 1 times [2022-02-21 04:18:15,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:15,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962818093] [2022-02-21 04:18:15,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:15,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:15,672 INFO L290 TraceCheckUtils]: 0: Hoare triple {92#true} assume !false; {92#true} is VALID [2022-02-21 04:18:15,673 INFO L290 TraceCheckUtils]: 1: Hoare triple {92#true} assume test_~splverifierCounter~0#1 < 4; {92#true} is VALID [2022-02-21 04:18:15,673 INFO L290 TraceCheckUtils]: 2: Hoare triple {92#true} test_~tmp~3#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {92#true} is VALID [2022-02-21 04:18:15,673 INFO L290 TraceCheckUtils]: 3: Hoare triple {92#true} assume !(0 != test_~tmp~3#1); {92#true} is VALID [2022-02-21 04:18:15,673 INFO L290 TraceCheckUtils]: 4: Hoare triple {92#true} test_~tmp___0~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {92#true} is VALID [2022-02-21 04:18:15,673 INFO L290 TraceCheckUtils]: 5: Hoare triple {92#true} assume !(0 != test_~tmp___0~0#1); {92#true} is VALID [2022-02-21 04:18:15,674 INFO L290 TraceCheckUtils]: 6: Hoare triple {92#true} test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; {92#true} is VALID [2022-02-21 04:18:15,675 INFO L290 TraceCheckUtils]: 7: Hoare triple {92#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:15,675 INFO L290 TraceCheckUtils]: 8: Hoare triple {94#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:15,676 INFO L290 TraceCheckUtils]: 9: Hoare triple {94#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:15,678 INFO L290 TraceCheckUtils]: 10: Hoare triple {94#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret45#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45#1;havoc __utac_acc__Specification5_spec__2_#t~ret45#1; {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:15,679 INFO L290 TraceCheckUtils]: 11: Hoare triple {94#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:15,680 INFO L290 TraceCheckUtils]: 12: Hoare triple {94#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {94#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:15,681 INFO L290 TraceCheckUtils]: 13: Hoare triple {94#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {93#false} is VALID [2022-02-21 04:18:15,681 INFO L290 TraceCheckUtils]: 14: Hoare triple {93#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; {93#false} is VALID [2022-02-21 04:18:15,681 INFO L290 TraceCheckUtils]: 15: Hoare triple {93#false} __utac_acc__Specification5_spec__3_#t~ret46#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; {93#false} is VALID [2022-02-21 04:18:15,681 INFO L290 TraceCheckUtils]: 16: Hoare triple {93#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); {93#false} is VALID [2022-02-21 04:18:15,681 INFO L290 TraceCheckUtils]: 17: Hoare triple {93#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {93#false} is VALID [2022-02-21 04:18:15,682 INFO L290 TraceCheckUtils]: 18: Hoare triple {93#false} assume { :end_inline_timeShift } true; {93#false} is VALID [2022-02-21 04:18:15,682 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 04:18:15,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:15,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962818093] [2022-02-21 04:18:15,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962818093] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:15,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:15,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:15,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061185038] [2022-02-21 04:18:15,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:15,687 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:15,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:15,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:15,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:15,724 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:15,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:15,840 INFO L93 Difference]: Finished difference Result 83 states and 103 transitions. [2022-02-21 04:18:15,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:15,841 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:15,859 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:15,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 103 transitions. [2022-02-21 04:18:15,872 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-02-21 04:18:15,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 73 states and 92 transitions. [2022-02-21 04:18:15,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2022-02-21 04:18:15,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2022-02-21 04:18:15,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 92 transitions. [2022-02-21 04:18:15,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:15,881 INFO L681 BuchiCegarLoop]: Abstraction has 73 states and 92 transitions. [2022-02-21 04:18:15,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 92 transitions. [2022-02-21 04:18:15,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-02-21 04:18:15,901 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:15,902 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states and 92 transitions. Second operand has 73 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 72 states have internal predecessors, (92), 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 04:18:15,907 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states and 92 transitions. Second operand has 73 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 72 states have internal predecessors, (92), 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 04:18:15,909 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 73 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 72 states have internal predecessors, (92), 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 04:18:15,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:15,913 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2022-02-21 04:18:15,913 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2022-02-21 04:18:15,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:15,917 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:15,918 INFO L74 IsIncluded]: Start isIncluded. First operand has 73 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 72 states have internal predecessors, (92), 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 73 states and 92 transitions. [2022-02-21 04:18:15,918 INFO L87 Difference]: Start difference. First operand has 73 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 72 states have internal predecessors, (92), 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 73 states and 92 transitions. [2022-02-21 04:18:15,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:15,922 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2022-02-21 04:18:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2022-02-21 04:18:15,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:15,923 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:15,924 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:15,927 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:15,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 72 states have internal predecessors, (92), 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 04:18:15,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2022-02-21 04:18:15,930 INFO L704 BuchiCegarLoop]: Abstraction has 73 states and 92 transitions. [2022-02-21 04:18:15,930 INFO L587 BuchiCegarLoop]: Abstraction has 73 states and 92 transitions. [2022-02-21 04:18:15,930 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:15,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 92 transitions. [2022-02-21 04:18:15,933 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-02-21 04:18:15,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:15,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:15,935 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:15,935 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:15,935 INFO L791 eck$LassoCheckResult]: Stem: 250#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 240#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~5#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 191#L779 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 181#L772 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 182#L787 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 205#L875 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 206#L851 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 207#L711 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 212#L639-2 [2022-02-21 04:18:15,936 INFO L793 eck$LassoCheckResult]: Loop: 212#L639-2 assume !false; 224#L640 assume test_~splverifierCounter~0#1 < 4; 227#L641 test_~tmp~3#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 246#L649 assume !(0 != test_~tmp~3#1); 230#L649-2 test_~tmp___0~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 225#L659 assume !(0 != test_~tmp___0~0#1); 198#L659-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 199#L669 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 192#L677 assume 0 != test_~tmp___1~0#1; 193#L677-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 203#L579 __utac_acc__Specification5_spec__2_#t~ret45#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45#1;havoc __utac_acc__Specification5_spec__2_#t~ret45#1; 204#L721 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 210#L520 assume !(0 != ~pumpRunning~0); 196#L520-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 197#L544 assume { :end_inline_processEnvironment } true; 235#L527-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 236#L497 __utac_acc__Specification5_spec__3_#t~ret46#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; 223#L732 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 222#L732-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 211#L537 assume { :end_inline_timeShift } true; 212#L639-2 [2022-02-21 04:18:15,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:15,937 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:15,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:15,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121871296] [2022-02-21 04:18:15,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:15,991 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,019 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:16,020 INFO L85 PathProgramCache]: Analyzing trace with hash 288466093, now seen corresponding path program 1 times [2022-02-21 04:18:16,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:16,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080123980] [2022-02-21 04:18:16,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:16,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,031 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,043 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:16,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:16,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1660991766, now seen corresponding path program 1 times [2022-02-21 04:18:16,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:16,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237863270] [2022-02-21 04:18:16,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:16,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:16,118 INFO L290 TraceCheckUtils]: 0: Hoare triple {404#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,119 INFO L290 TraceCheckUtils]: 1: Hoare triple {406#(= ~waterLevel~0 1)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~5#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,119 INFO L290 TraceCheckUtils]: 2: Hoare triple {406#(= ~waterLevel~0 1)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,119 INFO L290 TraceCheckUtils]: 3: Hoare triple {406#(= ~waterLevel~0 1)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,120 INFO L290 TraceCheckUtils]: 4: Hoare triple {406#(= ~waterLevel~0 1)} main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret49#1;havoc main_#t~ret49#1; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,120 INFO L290 TraceCheckUtils]: 5: Hoare triple {406#(= ~waterLevel~0 1)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,121 INFO L290 TraceCheckUtils]: 6: Hoare triple {406#(= ~waterLevel~0 1)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,121 INFO L290 TraceCheckUtils]: 7: Hoare triple {406#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,121 INFO L290 TraceCheckUtils]: 8: Hoare triple {406#(= ~waterLevel~0 1)} assume !false; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,122 INFO L290 TraceCheckUtils]: 9: Hoare triple {406#(= ~waterLevel~0 1)} assume test_~splverifierCounter~0#1 < 4; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,122 INFO L290 TraceCheckUtils]: 10: Hoare triple {406#(= ~waterLevel~0 1)} test_~tmp~3#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,123 INFO L290 TraceCheckUtils]: 11: Hoare triple {406#(= ~waterLevel~0 1)} assume !(0 != test_~tmp~3#1); {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,123 INFO L290 TraceCheckUtils]: 12: Hoare triple {406#(= ~waterLevel~0 1)} test_~tmp___0~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,123 INFO L290 TraceCheckUtils]: 13: Hoare triple {406#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~0#1); {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,124 INFO L290 TraceCheckUtils]: 14: Hoare triple {406#(= ~waterLevel~0 1)} test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,124 INFO L290 TraceCheckUtils]: 15: Hoare triple {406#(= ~waterLevel~0 1)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,125 INFO L290 TraceCheckUtils]: 16: Hoare triple {406#(= ~waterLevel~0 1)} assume 0 != test_~tmp___1~0#1; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,125 INFO L290 TraceCheckUtils]: 17: Hoare triple {406#(= ~waterLevel~0 1)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,127 INFO L290 TraceCheckUtils]: 18: Hoare triple {406#(= ~waterLevel~0 1)} __utac_acc__Specification5_spec__2_#t~ret45#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45#1;havoc __utac_acc__Specification5_spec__2_#t~ret45#1; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,127 INFO L290 TraceCheckUtils]: 19: Hoare triple {406#(= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,127 INFO L290 TraceCheckUtils]: 20: Hoare triple {406#(= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,128 INFO L290 TraceCheckUtils]: 21: Hoare triple {406#(= ~waterLevel~0 1)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,128 INFO L290 TraceCheckUtils]: 22: Hoare triple {406#(= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {406#(= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:16,129 INFO L290 TraceCheckUtils]: 23: Hoare triple {406#(= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; {407#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:16,130 INFO L290 TraceCheckUtils]: 24: Hoare triple {407#(= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret46#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; {408#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4#1| 1)} is VALID [2022-02-21 04:18:16,130 INFO L290 TraceCheckUtils]: 25: Hoare triple {408#(= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); {405#false} is VALID [2022-02-21 04:18:16,131 INFO L290 TraceCheckUtils]: 26: Hoare triple {405#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {405#false} is VALID [2022-02-21 04:18:16,131 INFO L290 TraceCheckUtils]: 27: Hoare triple {405#false} assume { :end_inline_timeShift } true; {405#false} is VALID [2022-02-21 04:18:16,131 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 04:18:16,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:16,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237863270] [2022-02-21 04:18:16,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237863270] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:16,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:16,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:16,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042367303] [2022-02-21 04:18:16,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:16,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:16,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:16,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:16,257 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 04:18:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:16,621 INFO L93 Difference]: Finished difference Result 189 states and 234 transitions. [2022-02-21 04:18:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:16,622 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 04:18:16,649 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:16,649 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 234 transitions. [2022-02-21 04:18:16,654 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 92 [2022-02-21 04:18:16,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 189 states and 234 transitions. [2022-02-21 04:18:16,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2022-02-21 04:18:16,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2022-02-21 04:18:16,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 234 transitions. [2022-02-21 04:18:16,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:16,660 INFO L681 BuchiCegarLoop]: Abstraction has 189 states and 234 transitions. [2022-02-21 04:18:16,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 234 transitions. [2022-02-21 04:18:16,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 134. [2022-02-21 04:18:16,664 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:16,665 INFO L82 GeneralOperation]: Start isEquivalent. First operand 189 states and 234 transitions. Second operand has 134 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 133 states have internal predecessors, (165), 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 04:18:16,665 INFO L74 IsIncluded]: Start isIncluded. First operand 189 states and 234 transitions. Second operand has 134 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 133 states have internal predecessors, (165), 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 04:18:16,665 INFO L87 Difference]: Start difference. First operand 189 states and 234 transitions. Second operand has 134 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 133 states have internal predecessors, (165), 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 04:18:16,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:16,669 INFO L93 Difference]: Finished difference Result 189 states and 234 transitions. [2022-02-21 04:18:16,669 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 234 transitions. [2022-02-21 04:18:16,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:16,670 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:16,671 INFO L74 IsIncluded]: Start isIncluded. First operand has 134 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 133 states have internal predecessors, (165), 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 189 states and 234 transitions. [2022-02-21 04:18:16,671 INFO L87 Difference]: Start difference. First operand has 134 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 133 states have internal predecessors, (165), 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 189 states and 234 transitions. [2022-02-21 04:18:16,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:16,675 INFO L93 Difference]: Finished difference Result 189 states and 234 transitions. [2022-02-21 04:18:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 234 transitions. [2022-02-21 04:18:16,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:16,676 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:16,676 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:16,677 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:16,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 133 states have internal predecessors, (165), 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 04:18:16,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 165 transitions. [2022-02-21 04:18:16,680 INFO L704 BuchiCegarLoop]: Abstraction has 134 states and 165 transitions. [2022-02-21 04:18:16,680 INFO L587 BuchiCegarLoop]: Abstraction has 134 states and 165 transitions. [2022-02-21 04:18:16,680 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:16,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 165 transitions. [2022-02-21 04:18:16,681 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 92 [2022-02-21 04:18:16,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:16,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:16,681 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:16,681 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] [2022-02-21 04:18:16,681 INFO L791 eck$LassoCheckResult]: Stem: 686#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 673#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~5#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 615#L779 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 607#L772 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 608#L787 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 631#L875 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 632#L851 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 633#L711 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 641#L639-2 [2022-02-21 04:18:16,682 INFO L793 eck$LassoCheckResult]: Loop: 641#L639-2 assume !false; 653#L640 assume test_~splverifierCounter~0#1 < 4; 656#L641 test_~tmp~3#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 678#L649 assume !(0 != test_~tmp~3#1); 688#L649-2 test_~tmp___0~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 654#L659 assume !(0 != test_~tmp___0~0#1); 618#L659-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 619#L669 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 675#L624 assume { :end_inline_startSystem } true; 621#L677-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 691#L579 __utac_acc__Specification5_spec__2_#t~ret45#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45#1;havoc __utac_acc__Specification5_spec__2_#t~ret45#1; 729#L721 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 728#L520 assume !(0 != ~pumpRunning~0); 723#L520-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 722#L544 assume { :end_inline_processEnvironment } true; 720#L527-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 687#L497 __utac_acc__Specification5_spec__3_#t~ret46#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; 651#L732 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 652#L579-1 __utac_acc__Specification5_spec__3_#t~ret47#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~1#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 671#L736 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1#1); 650#L732-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 640#L537 assume { :end_inline_timeShift } true; 641#L639-2 [2022-02-21 04:18:16,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:16,682 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:16,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:16,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756678941] [2022-02-21 04:18:16,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:16,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,703 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,733 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:16,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1183505207, now seen corresponding path program 1 times [2022-02-21 04:18:16,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:16,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82044474] [2022-02-21 04:18:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:16,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,740 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,747 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:16,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:16,748 INFO L85 PathProgramCache]: Analyzing trace with hash -741293326, now seen corresponding path program 1 times [2022-02-21 04:18:16,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:16,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30166945] [2022-02-21 04:18:16,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:16,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,758 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,766 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:19,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:19 BoogieIcfgContainer [2022-02-21 04:18:19,391 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:19,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:19,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:19,392 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:19,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:15" (3/4) ... [2022-02-21 04:18:19,394 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:19,434 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:19,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:19,438 INFO L158 Benchmark]: Toolchain (without parser) took 4959.31ms. Allocated memory was 98.6MB in the beginning and 176.2MB in the end (delta: 77.6MB). Free memory was 64.1MB in the beginning and 148.0MB in the end (delta: -84.0MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. [2022-02-21 04:18:19,438 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory was 69.4MB in the beginning and 69.4MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:19,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.80ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 63.5MB in the end (delta: 265.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:19,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.64ms. Allocated memory is still 98.6MB. Free memory was 63.5MB in the beginning and 60.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:19,439 INFO L158 Benchmark]: Boogie Preprocessor took 39.98ms. Allocated memory is still 98.6MB. Free memory was 60.5MB in the beginning and 58.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:19,439 INFO L158 Benchmark]: RCFGBuilder took 373.16ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 41.2MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:19,440 INFO L158 Benchmark]: BuchiAutomizer took 4122.29ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 41.2MB in the beginning and 40.2MB in the end (delta: 1.0MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:19,440 INFO L158 Benchmark]: Witness Printer took 45.13ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 40.2MB in the beginning and 148.0MB in the end (delta: -107.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:19,441 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 0.21ms. Allocated memory is still 98.6MB. Free memory was 69.4MB in the beginning and 69.4MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.80ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 63.5MB in the end (delta: 265.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.64ms. Allocated memory is still 98.6MB. Free memory was 63.5MB in the beginning and 60.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.98ms. Allocated memory is still 98.6MB. Free memory was 60.5MB in the beginning and 58.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 373.16ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 41.2MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 4122.29ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 41.2MB in the beginning and 40.2MB in the end (delta: 1.0MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. * Witness Printer took 45.13ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 40.2MB in the beginning and 148.0MB in the end (delta: -107.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 134 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 55 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 134 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 500 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 260 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 240 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 639]: 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, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57907f25=0, retValue_acc=0, tmp___0=0, NULL=1, methaneLevelCritical=0, retValue_acc=1, \result=1, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@514aee3f=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f405a55=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35098c65=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@784da630=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b3753c5=29, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57439308=0, \result=0, tmp___0=0, head=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1775559b=0, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 639]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L422] int waterLevel = 1; [L423] int methaneLevelCritical = 0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L705] int switchedOnBeforeTS ; [L792] int cleanupTimeShifts = 4; [L866] int retValue_acc ; [L867] int tmp ; [L871] FCALL select_helpers() [L872] FCALL select_features() [L873] CALL, EXPR valid_product() [L783] int retValue_acc ; [L786] retValue_acc = 1 [L787] return (retValue_acc); [L873] RET, EXPR valid_product() [L873] tmp = valid_product() [L875] COND TRUE \read(tmp) [L877] FCALL setup() [L878] CALL runTest() [L859] CALL __utac_acc__Specification5_spec__1() [L710] switchedOnBeforeTS = 0 [L859] RET __utac_acc__Specification5_spec__1() [L860] CALL test() [L630] int splverifierCounter ; [L631] int tmp ; [L632] int tmp___0 ; [L633] int tmp___1 ; [L634] int tmp___2 ; [L637] splverifierCounter = 0 Loop: [L639] COND TRUE 1 [L641] COND TRUE splverifierCounter < 4 [L647] tmp = __VERIFIER_nondet_int() [L649] COND FALSE !(\read(tmp)) [L657] tmp___0 = __VERIFIER_nondet_int() [L659] COND FALSE !(\read(tmp___0)) [L667] tmp___2 = __VERIFIER_nondet_int() [L669] COND TRUE \read(tmp___2) [L671] CALL startSystem() [L623] systemActive = 1 [L671] RET startSystem() [L684] CALL timeShift() [L518] CALL __utac_acc__Specification5_spec__2() [L719] CALL, EXPR isPumpRunning() [L575] int retValue_acc ; [L578] retValue_acc = pumpRunning [L579] return (retValue_acc); [L719] RET, EXPR isPumpRunning() [L719] switchedOnBeforeTS = isPumpRunning() [L518] RET __utac_acc__Specification5_spec__2() [L520] COND FALSE !(\read(pumpRunning)) [L527] COND TRUE \read(systemActive) [L529] FCALL processEnvironment() [L535] CALL __utac_acc__Specification5_spec__3() [L725] int tmp ; [L726] int tmp___0 ; [L730] CALL, EXPR getWaterLevel() [L493] int retValue_acc ; [L496] retValue_acc = waterLevel [L497] return (retValue_acc); [L730] RET, EXPR getWaterLevel() [L730] tmp = getWaterLevel() [L732] COND TRUE tmp != 2 [L734] CALL, EXPR isPumpRunning() [L575] int retValue_acc ; [L578] retValue_acc = pumpRunning [L579] return (retValue_acc); [L734] RET, EXPR isPumpRunning() [L734] tmp___0 = isPumpRunning() [L736] COND FALSE !(\read(tmp___0)) [L535] RET __utac_acc__Specification5_spec__3() [L684] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:19,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)