./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product06.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_product06.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 c2c09c553453ff5cc1c780de43f9253f29851703b462741b40e69cde342fa216 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:18,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:18,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:18,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:18,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:18,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:18,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:18,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:18,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:18,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:18,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:18,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:18,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:18,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:18,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:18,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:18,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:18,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:18,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:18,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:18,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:18,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:18,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:18,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:18,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:18,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:18,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:18,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:18,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:18,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:18,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:18,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:18,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:18,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:18,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:18,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:18,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:18,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:18,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:18,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:18,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:18,438 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:18,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:18,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:18,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:18,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:18,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:18,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:18,468 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:18,468 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:18,468 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:18,469 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:18,469 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:18,469 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:18,469 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:18,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:18,470 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:18,470 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:18,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:18,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:18,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:18,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:18,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:18,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:18,471 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:18,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:18,472 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:18,472 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:18,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:18,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:18,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:18,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:18,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:18,474 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:18,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c09c553453ff5cc1c780de43f9253f29851703b462741b40e69cde342fa216 [2022-02-21 04:18:18,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:18,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:18,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:18,730 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:18,730 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:18,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2022-02-21 04:18:18,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634948012/dc90a7f7a36b462bae212626dd79c78d/FLAG0ad37f457 [2022-02-21 04:18:19,162 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:19,163 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2022-02-21 04:18:19,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634948012/dc90a7f7a36b462bae212626dd79c78d/FLAG0ad37f457 [2022-02-21 04:18:19,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/634948012/dc90a7f7a36b462bae212626dd79c78d [2022-02-21 04:18:19,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:19,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:19,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:19,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:19,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:19,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:19" (1/1) ... [2022-02-21 04:18:19,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b1319a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:19, skipping insertion in model container [2022-02-21 04:18:19,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:19" (1/1) ... [2022-02-21 04:18:19,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:19,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:19,910 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_product06.cil.c[17711,17724] [2022-02-21 04:18:19,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:19,925 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:20,029 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_product06.cil.c[17711,17724] [2022-02-21 04:18:20,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:20,053 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:20,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20 WrapperNode [2022-02-21 04:18:20,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:20,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:20,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:20,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:20,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,148 INFO L137 Inliner]: procedures = 53, calls = 152, calls flagged for inlining = 49, calls inlined = 55, statements flattened = 402 [2022-02-21 04:18:20,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:20,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:20,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:20,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:20,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:20,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:20,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:20,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:20,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (1/1) ... [2022-02-21 04:18:20,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:20,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:20,241 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 04:18:20,267 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 04:18:20,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:20,369 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:20,371 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:20,725 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:20,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:20,756 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:20,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:20 BoogieIcfgContainer [2022-02-21 04:18:20,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:20,759 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:20,759 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:20,762 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:20,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:20,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:19" (1/3) ... [2022-02-21 04:18:20,768 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@649f52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:20, skipping insertion in model container [2022-02-21 04:18:20,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:20,768 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:20" (2/3) ... [2022-02-21 04:18:20,768 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@649f52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:20, skipping insertion in model container [2022-02-21 04:18:20,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:20,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:20" (3/3) ... [2022-02-21 04:18:20,770 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product06.cil.c [2022-02-21 04:18:20,816 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:20,817 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:20,817 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:20,817 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:20,817 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:20,817 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:20,818 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:20,818 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:20,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.349056603773585) internal successors, (143), 106 states have internal predecessors, (143), 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 04:18:20,875 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-02-21 04:18:20,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:20,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:20,881 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:20,881 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 04:18:20,882 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:20,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.349056603773585) internal successors, (143), 106 states have internal predecessors, (143), 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 04:18:20,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-02-21 04:18:20,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:20,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:20,913 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:20,913 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 04:18:20,927 INFO L791 eck$LassoCheckResult]: Stem: 100#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 33#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 9#L161true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 81#L154true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 47#L169true main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 107#L478true assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 36#L453true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 39#L499true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 73#L187-2true [2022-02-21 04:18:20,928 INFO L793 eck$LassoCheckResult]: Loop: 73#L187-2true assume !false; 16#L188true assume test_~splverifierCounter~0#1 < 4; 78#L189true test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 63#L197true assume !(0 != test_~tmp~0#1); 91#L197-2true test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 59#L207true assume !(0 != test_~tmp___0~0#1); 79#L207-2true test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 18#L217true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 31#L225true assume 0 != test_~tmp___1~0#1; 48#L225-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 101#L345true __utac_acc__Specification5_spec__2_#t~ret25#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1; 41#L509true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 54#L260true assume !(0 != ~pumpRunning~0); 83#L260-2true assume !(0 != ~systemActive~0); 29#L267-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 38#L131true __utac_acc__Specification5_spec__3_#t~ret26#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1; 34#L520true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 11#L520-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 104#L277true assume { :end_inline_timeShift } true; 73#L187-2true [2022-02-21 04:18:20,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:20,934 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:20,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:20,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183267627] [2022-02-21 04:18:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:20,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:21,095 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:21,172 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:21,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:21,176 INFO L85 PathProgramCache]: Analyzing trace with hash -884134132, now seen corresponding path program 1 times [2022-02-21 04:18:21,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:21,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980454017] [2022-02-21 04:18:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:21,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:21,208 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:21,223 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:21,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:21,226 INFO L85 PathProgramCache]: Analyzing trace with hash 545614211, now seen corresponding path program 1 times [2022-02-21 04:18:21,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:21,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772973228] [2022-02-21 04:18:21,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:21,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:21,421 INFO L290 TraceCheckUtils]: 0: Hoare triple {115#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:21,422 INFO L290 TraceCheckUtils]: 1: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:21,423 INFO L290 TraceCheckUtils]: 2: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {117#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:21,424 INFO L290 TraceCheckUtils]: 3: Hoare triple {117#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; {118#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:21,424 INFO L290 TraceCheckUtils]: 4: Hoare triple {118#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1; {119#(= |ULTIMATE.start_main_~tmp~2#1| ~systemActive~0)} is VALID [2022-02-21 04:18:21,425 INFO L290 TraceCheckUtils]: 5: Hoare triple {119#(= |ULTIMATE.start_main_~tmp~2#1| ~systemActive~0)} assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,425 INFO L290 TraceCheckUtils]: 6: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,426 INFO L290 TraceCheckUtils]: 7: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,426 INFO L290 TraceCheckUtils]: 8: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !false; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,427 INFO L290 TraceCheckUtils]: 9: Hoare triple {120#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,428 INFO L290 TraceCheckUtils]: 10: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,429 INFO L290 TraceCheckUtils]: 11: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,429 INFO L290 TraceCheckUtils]: 12: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,430 INFO L290 TraceCheckUtils]: 13: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,431 INFO L290 TraceCheckUtils]: 14: Hoare triple {120#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,431 INFO L290 TraceCheckUtils]: 15: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,432 INFO L290 TraceCheckUtils]: 16: Hoare triple {120#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,432 INFO L290 TraceCheckUtils]: 17: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,433 INFO L290 TraceCheckUtils]: 18: Hoare triple {120#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret25#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,433 INFO L290 TraceCheckUtils]: 19: Hoare triple {120#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,434 INFO L290 TraceCheckUtils]: 20: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {120#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:21,435 INFO L290 TraceCheckUtils]: 21: Hoare triple {120#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {116#false} is VALID [2022-02-21 04:18:21,435 INFO L290 TraceCheckUtils]: 22: Hoare triple {116#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {116#false} is VALID [2022-02-21 04:18:21,436 INFO L290 TraceCheckUtils]: 23: Hoare triple {116#false} __utac_acc__Specification5_spec__3_#t~ret26#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1; {116#false} is VALID [2022-02-21 04:18:21,436 INFO L290 TraceCheckUtils]: 24: Hoare triple {116#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); {116#false} is VALID [2022-02-21 04:18:21,437 INFO L290 TraceCheckUtils]: 25: Hoare triple {116#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {116#false} is VALID [2022-02-21 04:18:21,437 INFO L290 TraceCheckUtils]: 26: Hoare triple {116#false} assume { :end_inline_timeShift } true; {116#false} is VALID [2022-02-21 04:18:21,438 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 04:18:21,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:21,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772973228] [2022-02-21 04:18:21,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772973228] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:21,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:21,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:21,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39657318] [2022-02-21 04:18:21,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:21,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:21,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:21,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:21,686 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.349056603773585) internal successors, (143), 106 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:22,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:22,037 INFO L93 Difference]: Finished difference Result 104 states and 129 transitions. [2022-02-21 04:18:22,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:22,038 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:22,070 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:22,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 129 transitions. [2022-02-21 04:18:22,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2022-02-21 04:18:22,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 94 states and 119 transitions. [2022-02-21 04:18:22,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2022-02-21 04:18:22,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2022-02-21 04:18:22,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 119 transitions. [2022-02-21 04:18:22,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:22,089 INFO L681 BuchiCegarLoop]: Abstraction has 94 states and 119 transitions. [2022-02-21 04:18:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 119 transitions. [2022-02-21 04:18:22,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-02-21 04:18:22,119 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:22,122 INFO L82 GeneralOperation]: Start isEquivalent. First operand 94 states and 119 transitions. Second operand has 94 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 93 states have internal predecessors, (119), 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 04:18:22,128 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states and 119 transitions. Second operand has 94 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 93 states have internal predecessors, (119), 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 04:18:22,130 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand has 94 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 93 states have internal predecessors, (119), 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 04:18:22,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:22,137 INFO L93 Difference]: Finished difference Result 94 states and 119 transitions. [2022-02-21 04:18:22,137 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2022-02-21 04:18:22,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:22,139 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:22,139 INFO L74 IsIncluded]: Start isIncluded. First operand has 94 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 93 states have internal predecessors, (119), 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 94 states and 119 transitions. [2022-02-21 04:18:22,139 INFO L87 Difference]: Start difference. First operand has 94 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 93 states have internal predecessors, (119), 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 94 states and 119 transitions. [2022-02-21 04:18:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:22,145 INFO L93 Difference]: Finished difference Result 94 states and 119 transitions. [2022-02-21 04:18:22,145 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2022-02-21 04:18:22,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:22,147 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:22,147 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:22,148 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:22,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 93 states have internal predecessors, (119), 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 04:18:22,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2022-02-21 04:18:22,153 INFO L704 BuchiCegarLoop]: Abstraction has 94 states and 119 transitions. [2022-02-21 04:18:22,153 INFO L587 BuchiCegarLoop]: Abstraction has 94 states and 119 transitions. [2022-02-21 04:18:22,153 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:22,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 119 transitions. [2022-02-21 04:18:22,159 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2022-02-21 04:18:22,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:22,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:22,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:22,161 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 04:18:22,161 INFO L791 eck$LassoCheckResult]: Stem: 317#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 306#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 262#L161 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 263#L154 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 290#L169 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 320#L478 assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 308#L453 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 309#L499 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 274#L187-2 [2022-02-21 04:18:22,161 INFO L793 eck$LassoCheckResult]: Loop: 274#L187-2 assume !false; 275#L188 assume test_~splverifierCounter~0#1 < 4; 278#L189 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 251#L197 assume !(0 != test_~tmp~0#1); 252#L197-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 240#L207 assume !(0 != test_~tmp___0~0#1); 241#L207-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 283#L217 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 285#L390 assume { :end_inline_startSystem } true; 291#L225-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 319#L345 __utac_acc__Specification5_spec__2_#t~ret25#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1; 313#L509 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 314#L260 assume !(0 != ~pumpRunning~0); 292#L260-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 287#L292 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 289#L284-1 assume { :end_inline_processEnvironment__wrappee__base } true; 295#L292-1 assume { :end_inline_processEnvironment } true; 297#L267-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 303#L131 __utac_acc__Specification5_spec__3_#t~ret26#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1; 307#L520 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 230#L520-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 272#L277 assume { :end_inline_timeShift } true; 274#L187-2 [2022-02-21 04:18:22,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:22,163 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:22,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:22,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521284121] [2022-02-21 04:18:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:22,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:22,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:22,193 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:22,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:22,196 INFO L85 PathProgramCache]: Analyzing trace with hash -718549808, now seen corresponding path program 1 times [2022-02-21 04:18:22,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:22,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775049526] [2022-02-21 04:18:22,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:22,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:22,206 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:22,214 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:22,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:22,215 INFO L85 PathProgramCache]: Analyzing trace with hash -276337927, now seen corresponding path program 1 times [2022-02-21 04:18:22,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:22,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008523574] [2022-02-21 04:18:22,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:22,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:22,305 INFO L290 TraceCheckUtils]: 0: Hoare triple {518#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,306 INFO L290 TraceCheckUtils]: 1: Hoare triple {520#(<= ~waterLevel~0 1)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,307 INFO L290 TraceCheckUtils]: 2: Hoare triple {520#(<= ~waterLevel~0 1)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,308 INFO L290 TraceCheckUtils]: 3: Hoare triple {520#(<= ~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~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,308 INFO L290 TraceCheckUtils]: 4: Hoare triple {520#(<= ~waterLevel~0 1)} main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,308 INFO L290 TraceCheckUtils]: 5: Hoare triple {520#(<= ~waterLevel~0 1)} assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,309 INFO L290 TraceCheckUtils]: 6: Hoare triple {520#(<= ~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; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,309 INFO L290 TraceCheckUtils]: 7: Hoare triple {520#(<= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,310 INFO L290 TraceCheckUtils]: 8: Hoare triple {520#(<= ~waterLevel~0 1)} assume !false; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,310 INFO L290 TraceCheckUtils]: 9: Hoare triple {520#(<= ~waterLevel~0 1)} assume test_~splverifierCounter~0#1 < 4; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,311 INFO L290 TraceCheckUtils]: 10: Hoare triple {520#(<= ~waterLevel~0 1)} test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,311 INFO L290 TraceCheckUtils]: 11: Hoare triple {520#(<= ~waterLevel~0 1)} assume !(0 != test_~tmp~0#1); {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,312 INFO L290 TraceCheckUtils]: 12: Hoare triple {520#(<= ~waterLevel~0 1)} test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,312 INFO L290 TraceCheckUtils]: 13: Hoare triple {520#(<= ~waterLevel~0 1)} assume !(0 != test_~tmp___0~0#1); {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,313 INFO L290 TraceCheckUtils]: 14: Hoare triple {520#(<= ~waterLevel~0 1)} test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,313 INFO L290 TraceCheckUtils]: 15: Hoare triple {520#(<= ~waterLevel~0 1)} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,314 INFO L290 TraceCheckUtils]: 16: Hoare triple {520#(<= ~waterLevel~0 1)} assume { :end_inline_startSystem } true; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,314 INFO L290 TraceCheckUtils]: 17: Hoare triple {520#(<= ~waterLevel~0 1)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,314 INFO L290 TraceCheckUtils]: 18: Hoare triple {520#(<= ~waterLevel~0 1)} __utac_acc__Specification5_spec__2_#t~ret25#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,315 INFO L290 TraceCheckUtils]: 19: Hoare triple {520#(<= ~waterLevel~0 1)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,315 INFO L290 TraceCheckUtils]: 20: Hoare triple {520#(<= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0); {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,316 INFO L290 TraceCheckUtils]: 21: Hoare triple {520#(<= ~waterLevel~0 1)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,316 INFO L290 TraceCheckUtils]: 22: Hoare triple {520#(<= ~waterLevel~0 1)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,320 INFO L290 TraceCheckUtils]: 23: Hoare triple {520#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,321 INFO L290 TraceCheckUtils]: 24: Hoare triple {520#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {520#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:22,322 INFO L290 TraceCheckUtils]: 25: Hoare triple {520#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {521#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:22,322 INFO L290 TraceCheckUtils]: 26: Hoare triple {521#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret26#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1; {522#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~3#1| 1)} is VALID [2022-02-21 04:18:22,323 INFO L290 TraceCheckUtils]: 27: Hoare triple {522#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~3#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); {519#false} is VALID [2022-02-21 04:18:22,323 INFO L290 TraceCheckUtils]: 28: Hoare triple {519#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {519#false} is VALID [2022-02-21 04:18:22,323 INFO L290 TraceCheckUtils]: 29: Hoare triple {519#false} assume { :end_inline_timeShift } true; {519#false} is VALID [2022-02-21 04:18:22,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:22,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:22,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008523574] [2022-02-21 04:18:22,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008523574] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:22,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:22,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:22,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324908834] [2022-02-21 04:18:22,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:22,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:22,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:22,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:22,496 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. cyclomatic complexity: 27 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 04:18:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:23,005 INFO L93 Difference]: Finished difference Result 260 states and 330 transitions. [2022-02-21 04:18:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:23,006 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 04:18:23,038 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:23,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 260 states and 330 transitions. [2022-02-21 04:18:23,053 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2022-02-21 04:18:23,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 260 states to 260 states and 330 transitions. [2022-02-21 04:18:23,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 260 [2022-02-21 04:18:23,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 260 [2022-02-21 04:18:23,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 260 states and 330 transitions. [2022-02-21 04:18:23,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:23,070 INFO L681 BuchiCegarLoop]: Abstraction has 260 states and 330 transitions. [2022-02-21 04:18:23,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states and 330 transitions. [2022-02-21 04:18:23,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 179. [2022-02-21 04:18:23,093 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:23,094 INFO L82 GeneralOperation]: Start isEquivalent. First operand 260 states and 330 transitions. Second operand has 179 states, 179 states have (on average 1.2569832402234637) internal successors, (225), 178 states have internal predecessors, (225), 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 04:18:23,095 INFO L74 IsIncluded]: Start isIncluded. First operand 260 states and 330 transitions. Second operand has 179 states, 179 states have (on average 1.2569832402234637) internal successors, (225), 178 states have internal predecessors, (225), 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 04:18:23,095 INFO L87 Difference]: Start difference. First operand 260 states and 330 transitions. Second operand has 179 states, 179 states have (on average 1.2569832402234637) internal successors, (225), 178 states have internal predecessors, (225), 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 04:18:23,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:23,108 INFO L93 Difference]: Finished difference Result 260 states and 330 transitions. [2022-02-21 04:18:23,108 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 330 transitions. [2022-02-21 04:18:23,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:23,113 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:23,114 INFO L74 IsIncluded]: Start isIncluded. First operand has 179 states, 179 states have (on average 1.2569832402234637) internal successors, (225), 178 states have internal predecessors, (225), 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 260 states and 330 transitions. [2022-02-21 04:18:23,115 INFO L87 Difference]: Start difference. First operand has 179 states, 179 states have (on average 1.2569832402234637) internal successors, (225), 178 states have internal predecessors, (225), 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 260 states and 330 transitions. [2022-02-21 04:18:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:23,123 INFO L93 Difference]: Finished difference Result 260 states and 330 transitions. [2022-02-21 04:18:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 330 transitions. [2022-02-21 04:18:23,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:23,130 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:23,130 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:23,130 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:23,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 179 states have (on average 1.2569832402234637) internal successors, (225), 178 states have internal predecessors, (225), 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 04:18:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 225 transitions. [2022-02-21 04:18:23,136 INFO L704 BuchiCegarLoop]: Abstraction has 179 states and 225 transitions. [2022-02-21 04:18:23,136 INFO L587 BuchiCegarLoop]: Abstraction has 179 states and 225 transitions. [2022-02-21 04:18:23,136 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:23,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 225 transitions. [2022-02-21 04:18:23,138 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 125 [2022-02-21 04:18:23,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:23,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:23,139 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:23,140 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:23,140 INFO L791 eck$LassoCheckResult]: Stem: 891#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 876#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 819#L161 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 820#L154 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 853#L169 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 896#L478 assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true; 878#L453 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 879#L499 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 882#L187-2 [2022-02-21 04:18:23,140 INFO L793 eck$LassoCheckResult]: Loop: 882#L187-2 assume !false; 933#L188 assume test_~splverifierCounter~0#1 < 4; 932#L189 test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 931#L197 assume !(0 != test_~tmp~0#1); 930#L197-2 test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 928#L207 assume !(0 != test_~tmp___0~0#1); 926#L207-2 test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 925#L217 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 923#L390 assume { :end_inline_startSystem } true; 922#L225-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 921#L345 __utac_acc__Specification5_spec__2_#t~ret25#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1; 920#L509 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 918#L260 assume !(0 != ~pumpRunning~0); 917#L260-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 914#L292 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 911#L284-1 assume { :end_inline_processEnvironment__wrappee__base } true; 909#L292-1 assume { :end_inline_processEnvironment } true; 908#L267-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 881#L131 __utac_acc__Specification5_spec__3_#t~ret26#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1; 877#L520 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 824#L345-1 __utac_acc__Specification5_spec__3_#t~ret27#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~1#1 := __utac_acc__Specification5_spec__3_#t~ret27#1;havoc __utac_acc__Specification5_spec__3_#t~ret27#1; 825#L524 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1#1); 937#L520-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 936#L277 assume { :end_inline_timeShift } true; 882#L187-2 [2022-02-21 04:18:23,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:23,141 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:23,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:23,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389365885] [2022-02-21 04:18:23,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:23,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,154 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,169 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash 944270347, now seen corresponding path program 1 times [2022-02-21 04:18:23,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:23,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204383555] [2022-02-21 04:18:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:23,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,182 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,197 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:23,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:23,198 INFO L85 PathProgramCache]: Analyzing trace with hash 708125684, now seen corresponding path program 1 times [2022-02-21 04:18:23,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:23,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495846056] [2022-02-21 04:18:23,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:23,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,221 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:23,242 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:26,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:26 BoogieIcfgContainer [2022-02-21 04:18:26,392 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:26,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:26,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:26,393 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:26,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:20" (3/4) ... [2022-02-21 04:18:26,396 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:26,437 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:26,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:26,438 INFO L158 Benchmark]: Toolchain (without parser) took 6893.19ms. Allocated memory was 81.8MB in the beginning and 144.7MB in the end (delta: 62.9MB). Free memory was 44.2MB in the beginning and 110.2MB in the end (delta: -66.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:26,439 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 81.8MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 38.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:26,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.56ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 44.0MB in the beginning and 65.1MB in the end (delta: -21.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:26,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.07ms. Allocated memory is still 98.6MB. Free memory was 65.1MB in the beginning and 61.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:26,440 INFO L158 Benchmark]: Boogie Preprocessor took 54.77ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 59.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:26,440 INFO L158 Benchmark]: RCFGBuilder took 553.34ms. Allocated memory is still 98.6MB. Free memory was 59.5MB in the beginning and 39.7MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-02-21 04:18:26,441 INFO L158 Benchmark]: BuchiAutomizer took 5633.58ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 39.7MB in the beginning and 112.3MB in the end (delta: -72.6MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2022-02-21 04:18:26,441 INFO L158 Benchmark]: Witness Printer took 44.25ms. Allocated memory is still 144.7MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:26,443 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 0.22ms. Allocated memory is still 81.8MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 38.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 503.56ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 44.0MB in the beginning and 65.1MB in the end (delta: -21.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.07ms. Allocated memory is still 98.6MB. Free memory was 65.1MB in the beginning and 61.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.77ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 59.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.34ms. Allocated memory is still 98.6MB. Free memory was 59.5MB in the beginning and 39.7MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 5633.58ms. Allocated memory was 98.6MB in the beginning and 144.7MB in the end (delta: 46.1MB). Free memory was 39.7MB in the beginning and 112.3MB in the end (delta: -72.6MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * Witness Printer took 44.25ms. Allocated memory is still 144.7MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 179 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 81 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 179 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 839 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 839 mSDsluCounter, 650 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 368 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 282 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 187]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a5f088a=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63e59405=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d9d429d=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b36b88c=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a6b4193=0, methaneLevelCritical=0, tmp=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a8b6f1b=0, retValue_acc=1, retValue_acc=0, tmp___2=29, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b780c4b=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4921ef4a=0, switchedOnBeforeTS=0, tmp=1, \result=0, tmp=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b8de490=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 187]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L248] int pumpRunning = 0; [L249] int systemActive = 1; [L394] int cleanupTimeShifts = 4; [L493] int switchedOnBeforeTS ; [L711] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L469] int retValue_acc ; [L470] int tmp ; [L474] FCALL select_helpers() [L475] FCALL select_features() [L476] CALL, EXPR valid_product() [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); [L476] RET, EXPR valid_product() [L476] tmp = valid_product() [L478] COND TRUE \read(tmp) [L480] FCALL setup() [L481] CALL runTest() [L462] CALL __utac_acc__Specification5_spec__1() [L498] switchedOnBeforeTS = 0 [L462] RET __utac_acc__Specification5_spec__1() [L463] CALL test() [L178] int splverifierCounter ; [L179] int tmp ; [L180] int tmp___0 ; [L181] int tmp___1 ; [L182] int tmp___2 ; [L185] splverifierCounter = 0 Loop: [L187] COND TRUE 1 [L189] COND TRUE splverifierCounter < 4 [L195] tmp = __VERIFIER_nondet_int() [L197] COND FALSE !(\read(tmp)) [L205] tmp___0 = __VERIFIER_nondet_int() [L207] COND FALSE !(\read(tmp___0)) [L215] tmp___2 = __VERIFIER_nondet_int() [L217] COND TRUE \read(tmp___2) [L219] CALL startSystem() [L389] systemActive = 1 [L219] RET startSystem() [L232] CALL timeShift() [L258] CALL __utac_acc__Specification5_spec__2() [L507] CALL, EXPR isPumpRunning() [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L507] RET, EXPR isPumpRunning() [L507] switchedOnBeforeTS = isPumpRunning() [L258] RET __utac_acc__Specification5_spec__2() [L260] COND FALSE !(\read(pumpRunning)) [L267] COND TRUE \read(systemActive) [L269] CALL processEnvironment() [L289] int tmp ; [L292] COND FALSE !(\read(pumpRunning)) [L307] FCALL processEnvironment__wrappee__base() [L269] RET processEnvironment() [L275] CALL __utac_acc__Specification5_spec__3() [L513] int tmp ; [L514] int tmp___0 ; [L518] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L518] RET, EXPR getWaterLevel() [L518] tmp = getWaterLevel() [L520] COND TRUE tmp != 2 [L522] CALL, EXPR isPumpRunning() [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L522] RET, EXPR isPumpRunning() [L522] tmp___0 = isPumpRunning() [L524] COND FALSE !(\read(tmp___0)) [L275] RET __utac_acc__Specification5_spec__3() [L232] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:26,486 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)