./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_productSimulator.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 62c2cf132c1af8470eae7f9b6621445fd5b91c1643db1f71bf7213022a4dec0a --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 16:00:08,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 16:00:08,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 16:00:08,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 16:00:08,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 16:00:08,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 16:00:08,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 16:00:08,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 16:00:08,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 16:00:08,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 16:00:08,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 16:00:08,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 16:00:08,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 16:00:08,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 16:00:08,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 16:00:08,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 16:00:08,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 16:00:08,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 16:00:08,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 16:00:08,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 16:00:08,352 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 16:00:08,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 16:00:08,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 16:00:08,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 16:00:08,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 16:00:08,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 16:00:08,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 16:00:08,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 16:00:08,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 16:00:08,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 16:00:08,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 16:00:08,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 16:00:08,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 16:00:08,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 16:00:08,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 16:00:08,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 16:00:08,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 16:00:08,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 16:00:08,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 16:00:08,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 16:00:08,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 16:00:08,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 16:00:08,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 16:00:08,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 16:00:08,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 16:00:08,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 16:00:08,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 16:00:08,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 16:00:08,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 16:00:08,398 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 16:00:08,398 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 16:00:08,399 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 16:00:08,399 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 16:00:08,399 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 16:00:08,399 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 16:00:08,400 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 16:00:08,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 16:00:08,400 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 16:00:08,400 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 16:00:08,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 16:00:08,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 16:00:08,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 16:00:08,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 16:00:08,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 16:00:08,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 16:00:08,401 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 16:00:08,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 16:00:08,401 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 16:00:08,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 16:00:08,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 16:00:08,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 16:00:08,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 16:00:08,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 16:00:08,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 16:00:08,403 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 16:00:08,403 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62c2cf132c1af8470eae7f9b6621445fd5b91c1643db1f71bf7213022a4dec0a [2022-07-14 16:00:08,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 16:00:08,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 16:00:08,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 16:00:08,635 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 16:00:08,635 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 16:00:08,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c [2022-07-14 16:00:08,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2950bfb/bdded3439f98475da3cf1c5a8357f58f/FLAG6ed044f73 [2022-07-14 16:00:09,116 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 16:00:09,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c [2022-07-14 16:00:09,137 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2950bfb/bdded3439f98475da3cf1c5a8357f58f/FLAG6ed044f73 [2022-07-14 16:00:09,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2950bfb/bdded3439f98475da3cf1c5a8357f58f [2022-07-14 16:00:09,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 16:00:09,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 16:00:09,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 16:00:09,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 16:00:09,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 16:00:09,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e26da2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09, skipping insertion in model container [2022-07-14 16:00:09,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 16:00:09,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 16:00:09,348 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_productSimulator.cil.c[5724,5737] [2022-07-14 16:00:09,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:00:09,396 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 16:00:09,411 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_productSimulator.cil.c[5724,5737] [2022-07-14 16:00:09,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:00:09,448 INFO L208 MainTranslator]: Completed translation [2022-07-14 16:00:09,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09 WrapperNode [2022-07-14 16:00:09,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 16:00:09,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 16:00:09,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 16:00:09,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 16:00:09,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,511 INFO L137 Inliner]: procedures = 65, calls = 180, calls flagged for inlining = 77, calls inlined = 456, statements flattened = 2773 [2022-07-14 16:00:09,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 16:00:09,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 16:00:09,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 16:00:09,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 16:00:09,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 16:00:09,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 16:00:09,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 16:00:09,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 16:00:09,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (1/1) ... [2022-07-14 16:00:09,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:00:09,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:00:09,772 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) [2022-07-14 16:00:09,794 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 [2022-07-14 16:00:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 16:00:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 16:00:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 16:00:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 16:00:09,891 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 16:00:09,893 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 16:00:10,738 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 16:00:10,748 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 16:00:10,748 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 16:00:10,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:00:10 BoogieIcfgContainer [2022-07-14 16:00:10,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 16:00:10,751 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 16:00:10,751 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 16:00:10,753 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 16:00:10,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:00:10,754 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 04:00:09" (1/3) ... [2022-07-14 16:00:10,754 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a522d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:00:10, skipping insertion in model container [2022-07-14 16:00:10,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:00:10,754 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:00:09" (2/3) ... [2022-07-14 16:00:10,755 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a522d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:00:10, skipping insertion in model container [2022-07-14 16:00:10,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:00:10,755 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:00:10" (3/3) ... [2022-07-14 16:00:10,756 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_productSimulator.cil.c [2022-07-14 16:00:10,800 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 16:00:10,800 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 16:00:10,800 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 16:00:10,800 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 16:00:10,800 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 16:00:10,800 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 16:00:10,800 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 16:00:10,800 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 16:00:10,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 776 states, 775 states have (on average 1.3458064516129031) internal successors, (1043), 775 states have internal predecessors, (1043), 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) [2022-07-14 16:00:10,849 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 511 [2022-07-14 16:00:10,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:10,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:10,867 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:10,868 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:10,868 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 16:00:10,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 776 states, 775 states have (on average 1.3458064516129031) internal successors, (1043), 775 states have internal predecessors, (1043), 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) [2022-07-14 16:00:10,879 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 511 [2022-07-14 16:00:10,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:10,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:10,882 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:10,882 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:10,885 INFO L752 eck$LassoCheckResult]: Stem: 368#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(38, 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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 709#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 144#L305true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;havoc select_features_#t~ret11#1, select_features_#t~ret12#1, select_features_#t~ret13#1, select_features_#t~ret14#1, select_features_#t~ret15#1, select_features_#t~ret16#1;~__SELECTED_FEATURE_base~0 := 1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 169#L280true select_features_#t~ret11#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret11#1;havoc select_features_#t~ret11#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 29#L280-1true select_features_#t~ret12#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret12#1;havoc select_features_#t~ret12#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 72#L280-2true select_features_#t~ret13#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret13#1;havoc select_features_#t~ret13#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 519#L280-3true select_features_#t~ret14#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret14#1;havoc select_features_#t~ret14#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 227#L280-4true select_features_#t~ret15#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret15#1;havoc select_features_#t~ret15#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 297#L280-5true select_features_#t~ret16#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret16#1;havoc select_features_#t~ret16#1; 26#L297true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := ~__SELECTED_FEATURE_base~0;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 390#L313true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 730#L259true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 157#L230true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 776#L1117true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 83#L705-2true [2022-07-14 16:00:10,886 INFO L754 eck$LassoCheckResult]: Loop: 83#L705-2true assume !false; 758#L706true assume test_~splverifierCounter~0#1 < 4; 339#L707true test_~tmp~4#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 577#L715true assume !(0 != test_~tmp~4#1); 675#L715-2true test_~tmp___0~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 382#L725true assume !(0 != test_~tmp___0~0#1); 386#L725-2true test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 371#L735true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 486#L747true assume !(0 != test_~tmp___1~0#1); 229#L747-1true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret59#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 99#L1009true __utac_acc__Specification5_spec__2_#t~ret59#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59#1;havoc __utac_acc__Specification5_spec__2_#t~ret59#1; 73#L1127true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 193#L787true assume !(0 != ~pumpRunning~0); 344#L787-2true assume !(0 != ~systemActive~0); 412#L794-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret60#1, __utac_acc__Specification5_spec__3_#t~ret61#1, __utac_acc__Specification5_spec__3_~tmp~11#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~11#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 595#L141true __utac_acc__Specification5_spec__3_#t~ret60#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~11#1 := __utac_acc__Specification5_spec__3_#t~ret60#1;havoc __utac_acc__Specification5_spec__3_#t~ret60#1; 92#L1138true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~11#1); 693#L1138-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 573#L804true assume { :end_inline_timeShift } true; 83#L705-2true [2022-07-14 16:00:10,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:10,891 INFO L85 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 1 times [2022-07-14 16:00:10,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:10,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099409510] [2022-07-14 16:00:10,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:10,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:10,991 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:11,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:11,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:11,042 INFO L85 PathProgramCache]: Analyzing trace with hash 876184363, now seen corresponding path program 1 times [2022-07-14 16:00:11,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:11,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891515601] [2022-07-14 16:00:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:11,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:11,055 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:11,065 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:11,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash -198834020, now seen corresponding path program 1 times [2022-07-14 16:00:11,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:11,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348805600] [2022-07-14 16:00:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:11,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:00:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:00:11,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:00:11,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348805600] [2022-07-14 16:00:11,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348805600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:00:11,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:00:11,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 16:00:11,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116203334] [2022-07-14 16:00:11,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:00:11,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:00:11,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 16:00:11,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 16:00:11,422 INFO L87 Difference]: Start difference. First operand has 776 states, 775 states have (on average 1.3458064516129031) internal successors, (1043), 775 states have internal predecessors, (1043), 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 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 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) [2022-07-14 16:00:11,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:00:11,618 INFO L93 Difference]: Finished difference Result 2364 states and 3157 transitions. [2022-07-14 16:00:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 16:00:11,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2364 states and 3157 transitions. [2022-07-14 16:00:11,654 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1566 [2022-07-14 16:00:11,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2364 states to 2324 states and 3117 transitions. [2022-07-14 16:00:11,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2324 [2022-07-14 16:00:11,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2324 [2022-07-14 16:00:11,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2324 states and 3117 transitions. [2022-07-14 16:00:11,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:00:11,691 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2324 states and 3117 transitions. [2022-07-14 16:00:11,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states and 3117 transitions. [2022-07-14 16:00:11,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 826. [2022-07-14 16:00:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 826 states have (on average 1.3389830508474576) internal successors, (1106), 825 states have internal predecessors, (1106), 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) [2022-07-14 16:00:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1106 transitions. [2022-07-14 16:00:11,740 INFO L392 hiAutomatonCegarLoop]: Abstraction has 826 states and 1106 transitions. [2022-07-14 16:00:11,740 INFO L374 stractBuchiCegarLoop]: Abstraction has 826 states and 1106 transitions. [2022-07-14 16:00:11,740 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 16:00:11,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 826 states and 1106 transitions. [2022-07-14 16:00:11,744 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 555 [2022-07-14 16:00:11,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:11,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:11,745 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:11,745 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:11,745 INFO L752 eck$LassoCheckResult]: Stem: 3924#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(38, 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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 3906#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 3643#L305 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;havoc select_features_#t~ret11#1, select_features_#t~ret12#1, select_features_#t~ret13#1, select_features_#t~ret14#1, select_features_#t~ret15#1, select_features_#t~ret16#1;~__SELECTED_FEATURE_base~0 := 1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 3644#L280 select_features_#t~ret11#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret11#1;havoc select_features_#t~ret11#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 3264#L280-1 select_features_#t~ret12#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret12#1;havoc select_features_#t~ret12#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 3265#L280-2 select_features_#t~ret13#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret13#1;havoc select_features_#t~ret13#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 3454#L280-3 select_features_#t~ret14#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret14#1;havoc select_features_#t~ret14#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 3645#L280-4 select_features_#t~ret15#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret15#1;havoc select_features_#t~ret15#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 3782#L280-5 select_features_#t~ret16#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret16#1;havoc select_features_#t~ret16#1; 3257#L297 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := ~__SELECTED_FEATURE_base~0;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 3229#L313 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 3230#L259 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 3670#L230 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3671#L1117 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3484#L705-2 [2022-07-14 16:00:11,745 INFO L754 eck$LassoCheckResult]: Loop: 3484#L705-2 assume !false; 3485#L706 assume test_~splverifierCounter~0#1 < 4; 3919#L707 test_~tmp~4#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 3760#L715 assume !(0 != test_~tmp~4#1); 3240#L715-2 test_~tmp___0~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 3183#L725 assume !(0 != test_~tmp___0~0#1); 3184#L725-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 3209#L735 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 3548#L747 assume !(0 != test_~tmp___1~0#1); 3272#L747-1 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret59#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 3538#L1009 __utac_acc__Specification5_spec__2_#t~ret59#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59#1;havoc __utac_acc__Specification5_spec__2_#t~ret59#1; 3455#L1127 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3456#L787 assume !(0 != ~pumpRunning~0); 3730#L787-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 3815#L930 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0);assume { :begin_inline_processEnvironment__before__methaneAlarm } true; 3254#L887-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0);assume { :begin_inline_processEnvironment__before__lowWaterSensor } true; 3256#L844-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0);assume { :begin_inline_processEnvironment__before__highWaterSensor } true; 3749#L811-26 assume { :end_inline_processEnvironment__before__highWaterSensor } true; 3207#L853-8 assume { :end_inline_processEnvironment__before__lowWaterSensor } true; 3208#L896-2 assume { :end_inline_processEnvironment__before__methaneAlarm } true; 3355#L939 assume { :end_inline_processEnvironment } true; 3316#L794-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret60#1, __utac_acc__Specification5_spec__3_#t~ret61#1, __utac_acc__Specification5_spec__3_~tmp~11#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~11#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 3317#L141 __utac_acc__Specification5_spec__3_#t~ret60#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~11#1 := __utac_acc__Specification5_spec__3_#t~ret60#1;havoc __utac_acc__Specification5_spec__3_#t~ret60#1; 3518#L1138 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~11#1); 3385#L1138-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3753#L804 assume { :end_inline_timeShift } true; 3484#L705-2 [2022-07-14 16:00:11,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 2 times [2022-07-14 16:00:11,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:11,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091081038] [2022-07-14 16:00:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:11,762 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:11,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:11,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:11,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1927315431, now seen corresponding path program 1 times [2022-07-14 16:00:11,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:11,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468968740] [2022-07-14 16:00:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:11,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:11,800 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:11,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:11,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:11,806 INFO L85 PathProgramCache]: Analyzing trace with hash 577251720, now seen corresponding path program 1 times [2022-07-14 16:00:11,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:11,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716457279] [2022-07-14 16:00:11,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:11,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:00:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:00:11,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:00:11,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716457279] [2022-07-14 16:00:11,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716457279] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:00:11,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:00:11,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 16:00:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201785769] [2022-07-14 16:00:11,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:00:11,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:00:11,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 16:00:11,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 16:00:11,994 INFO L87 Difference]: Start difference. First operand 826 states and 1106 transitions. cyclomatic complexity: 283 Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-07-14 16:00:12,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:00:12,414 INFO L93 Difference]: Finished difference Result 4587 states and 6153 transitions. [2022-07-14 16:00:12,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 16:00:12,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4587 states and 6153 transitions. [2022-07-14 16:00:12,441 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3078 [2022-07-14 16:00:12,459 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4587 states to 4587 states and 6153 transitions. [2022-07-14 16:00:12,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4587 [2022-07-14 16:00:12,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4587 [2022-07-14 16:00:12,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4587 states and 6153 transitions. [2022-07-14 16:00:12,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:00:12,467 INFO L369 hiAutomatonCegarLoop]: Abstraction has 4587 states and 6153 transitions. [2022-07-14 16:00:12,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4587 states and 6153 transitions. [2022-07-14 16:00:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4587 to 1632. [2022-07-14 16:00:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1632 states have (on average 1.3357843137254901) internal successors, (2180), 1631 states have internal predecessors, (2180), 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) [2022-07-14 16:00:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2180 transitions. [2022-07-14 16:00:12,503 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1632 states and 2180 transitions. [2022-07-14 16:00:12,503 INFO L374 stractBuchiCegarLoop]: Abstraction has 1632 states and 2180 transitions. [2022-07-14 16:00:12,503 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 16:00:12,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1632 states and 2180 transitions. [2022-07-14 16:00:12,515 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1106 [2022-07-14 16:00:12,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:00:12,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:00:12,517 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:12,517 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 16:00:12,517 INFO L752 eck$LassoCheckResult]: Stem: 9451#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(38, 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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 9409#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 9090#L305 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;havoc select_features_#t~ret11#1, select_features_#t~ret12#1, select_features_#t~ret13#1, select_features_#t~ret14#1, select_features_#t~ret15#1, select_features_#t~ret16#1;~__SELECTED_FEATURE_base~0 := 1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 9091#L280 select_features_#t~ret11#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret11#1;havoc select_features_#t~ret11#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 8695#L280-1 select_features_#t~ret12#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret12#1;havoc select_features_#t~ret12#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 8696#L280-2 select_features_#t~ret13#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret13#1;havoc select_features_#t~ret13#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 8890#L280-3 select_features_#t~ret14#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret14#1;havoc select_features_#t~ret14#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 9092#L280-4 select_features_#t~ret15#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret15#1;havoc select_features_#t~ret15#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet10#1, select_one_~retValue_acc~5#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~5#1;select_one_~choice~0#1 := select_one_#t~nondet10#1;havoc select_one_#t~nondet10#1;select_one_~retValue_acc~5#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~5#1; 9248#L280-5 select_features_#t~ret16#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret16#1;havoc select_features_#t~ret16#1; 8688#L297 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := ~__SELECTED_FEATURE_base~0;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 8662#L313 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 8663#L259 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 9117#L230 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 9118#L1117 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 9452#L705-2 [2022-07-14 16:00:12,518 INFO L754 eck$LassoCheckResult]: Loop: 9452#L705-2 assume !false; 9806#L706 assume test_~splverifierCounter~0#1 < 4; 9805#L707 test_~tmp~4#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 9803#L715 assume !(0 != test_~tmp~4#1); 9801#L715-2 test_~tmp___0~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 9799#L725 assume !(0 != test_~tmp___0~0#1); 9797#L725-2 test_~tmp___2~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 9525#L735 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 9521#L747 assume !(0 != test_~tmp___1~0#1); 9520#L747-1 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret59#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 10034#L1009 __utac_acc__Specification5_spec__2_#t~ret59#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59#1;havoc __utac_acc__Specification5_spec__2_#t~ret59#1; 10033#L1127 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 9184#L787 assume !(0 != ~pumpRunning~0); 9185#L787-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 9292#L930 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0);assume { :begin_inline_processEnvironment__before__methaneAlarm } true; 8685#L887-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0);assume { :begin_inline_processEnvironment__before__lowWaterSensor } true; 8687#L844-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0);assume { :begin_inline_processEnvironment__before__highWaterSensor } true; 9205#L811-26 assume { :end_inline_processEnvironment__before__highWaterSensor } true; 8638#L853-8 assume { :end_inline_processEnvironment__before__lowWaterSensor } true; 8639#L896-2 assume { :end_inline_processEnvironment__before__methaneAlarm } true; 8789#L939 assume { :end_inline_processEnvironment } true; 9811#L794-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret60#1, __utac_acc__Specification5_spec__3_#t~ret61#1, __utac_acc__Specification5_spec__3_~tmp~11#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~11#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 9252#L141 __utac_acc__Specification5_spec__3_#t~ret60#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~11#1 := __utac_acc__Specification5_spec__3_#t~ret60#1;havoc __utac_acc__Specification5_spec__3_#t~ret60#1; 9253#L1138 assume 2 != __utac_acc__Specification5_spec__3_~tmp~11#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 8693#L1009-1 __utac_acc__Specification5_spec__3_#t~ret61#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret61#1;havoc __utac_acc__Specification5_spec__3_#t~ret61#1; 8694#L1142 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 9809#L1138-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 9808#L804 assume { :end_inline_timeShift } true; 9452#L705-2 [2022-07-14 16:00:12,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:12,518 INFO L85 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 3 times [2022-07-14 16:00:12,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:12,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610862458] [2022-07-14 16:00:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:12,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:12,538 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:12,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:12,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:12,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1038299948, now seen corresponding path program 1 times [2022-07-14 16:00:12,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:12,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373894470] [2022-07-14 16:00:12,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:12,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:12,580 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:12,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:12,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:00:12,584 INFO L85 PathProgramCache]: Analyzing trace with hash 669046403, now seen corresponding path program 1 times [2022-07-14 16:00:12,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:00:12,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423477791] [2022-07-14 16:00:12,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:00:12,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:00:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:12,593 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:00:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:00:12,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:00:15,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 04:00:15 BoogieIcfgContainer [2022-07-14 16:00:15,637 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 16:00:15,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 16:00:15,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 16:00:15,637 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 16:00:15,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:00:10" (3/4) ... [2022-07-14 16:00:15,639 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 16:00:15,681 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 16:00:15,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 16:00:15,682 INFO L158 Benchmark]: Toolchain (without parser) took 6534.27ms. Allocated memory was 94.4MB in the beginning and 184.5MB in the end (delta: 90.2MB). Free memory was 54.9MB in the beginning and 64.0MB in the end (delta: -9.1MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2022-07-14 16:00:15,682 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 16:00:15,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.83ms. Allocated memory is still 94.4MB. Free memory was 54.7MB in the beginning and 59.5MB in the end (delta: -4.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-07-14 16:00:15,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.76ms. Allocated memory is still 94.4MB. Free memory was 59.5MB in the beginning and 50.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 16:00:15,683 INFO L158 Benchmark]: Boogie Preprocessor took 55.84ms. Allocated memory is still 94.4MB. Free memory was 50.0MB in the beginning and 43.4MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 16:00:15,684 INFO L158 Benchmark]: RCFGBuilder took 1181.73ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 43.2MB in the beginning and 80.3MB in the end (delta: -37.1MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2022-07-14 16:00:15,684 INFO L158 Benchmark]: BuchiAutomizer took 4885.85ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 79.7MB in the beginning and 67.2MB in the end (delta: 12.5MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2022-07-14 16:00:15,684 INFO L158 Benchmark]: Witness Printer took 44.13ms. Allocated memory is still 184.5MB. Free memory was 67.2MB in the beginning and 64.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:00:15,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.83ms. Allocated memory is still 94.4MB. Free memory was 54.7MB in the beginning and 59.5MB in the end (delta: -4.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.76ms. Allocated memory is still 94.4MB. Free memory was 59.5MB in the beginning and 50.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.84ms. Allocated memory is still 94.4MB. Free memory was 50.0MB in the beginning and 43.4MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1181.73ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 43.2MB in the beginning and 80.3MB in the end (delta: -37.1MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 4885.85ms. Allocated memory was 119.5MB in the beginning and 184.5MB in the end (delta: 65.0MB). Free memory was 79.7MB in the beginning and 67.2MB in the end (delta: 12.5MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. * Witness Printer took 44.13ms. Allocated memory is still 184.5MB. Free memory was 67.2MB in the beginning and 64.0MB in the end (delta: 3.1MB). 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 7 locations. The remainder module has 1632 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 4453 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13223 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13223 mSDsluCounter, 16060 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13131 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 520 IncrementalHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 2929 mSDtfsCounter, 520 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 705]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, __SELECTED_FEATURE_base=1, NULL=1, methaneLevelCritical=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18392ef7=0, __GUIDSL_ROOT_PRODUCTION=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@376bebf3=0, tmp___2=0, retValue_acc=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3832da36=0, choice=29, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f1e020=0, \result=1, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f8ce237=0, NULL=0, waterLevel=1, systemActive=1, __SELECTED_FEATURE_methaneAlarm=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50ab1ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20297d9e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b4890c4=0, tmp=1, __SELECTED_FEATURE_lowWaterSensor=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@edb54fc=0, __SELECTED_FEATURE_highWaterSensor=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29dcd2d=0, \result=1, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_stopCommand=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aa3b63f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60084d07=0, tmp=1, \result=29, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71fd22d1=0, head=0, __SELECTED_FEATURE_startCommand=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d2f300=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@278003de=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 705]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int __SELECTED_FEATURE_base ; [L51] int __SELECTED_FEATURE_highWaterSensor ; [L52] int __SELECTED_FEATURE_lowWaterSensor ; [L53] int __SELECTED_FEATURE_methaneQuery ; [L54] int __SELECTED_FEATURE_methaneAlarm ; [L55] int __SELECTED_FEATURE_stopCommand ; [L56] int __SELECTED_FEATURE_startCommand ; [L57] int __GUIDSL_ROOT_PRODUCTION ; [L66] int waterLevel = 1; [L67] int methaneLevelCritical = 0; [L169] int cleanupTimeShifts = 4; [L496] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L775] int pumpRunning = 0; [L776] int systemActive = 1; [L1111] int switchedOnBeforeTS ; [L250] int retValue_acc ; [L251] int tmp ; [L255] CALL select_helpers() [L304] __GUIDSL_ROOT_PRODUCTION = 1 [L255] RET select_helpers() [L256] CALL select_features() [L289] __SELECTED_FEATURE_base = 1 [L290] CALL, EXPR select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L290] RET, EXPR select_one() [L290] __SELECTED_FEATURE_highWaterSensor = select_one() [L291] CALL, EXPR select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L291] RET, EXPR select_one() [L291] __SELECTED_FEATURE_lowWaterSensor = select_one() [L292] CALL, EXPR select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L292] RET, EXPR select_one() [L292] __SELECTED_FEATURE_methaneQuery = select_one() [L293] CALL, EXPR select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L293] RET, EXPR select_one() [L293] __SELECTED_FEATURE_methaneAlarm = select_one() [L294] CALL, EXPR select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L294] RET, EXPR select_one() [L294] __SELECTED_FEATURE_stopCommand = select_one() [L295] CALL, EXPR select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L295] RET, EXPR select_one() [L295] __SELECTED_FEATURE_startCommand = select_one() [L256] RET select_features() [L257] CALL, EXPR valid_product() [L309] int retValue_acc ; [L312] retValue_acc = __SELECTED_FEATURE_base [L313] return (retValue_acc); [L257] RET, EXPR valid_product() [L257] tmp = valid_product() [L259] COND TRUE \read(tmp) [L261] FCALL setup() [L262] CALL runTest() [L240] CALL __utac_acc__Specification5_spec__1() [L1116] switchedOnBeforeTS = 0 [L240] RET __utac_acc__Specification5_spec__1() [L241] CALL test() [L696] int splverifierCounter ; [L697] int tmp ; [L698] int tmp___0 ; [L699] int tmp___1 ; [L700] int tmp___2 ; [L703] splverifierCounter = 0 Loop: [L705] COND TRUE 1 [L707] COND TRUE splverifierCounter < 4 [L713] tmp = __VERIFIER_nondet_int() [L715] COND FALSE !(\read(tmp)) [L723] tmp___0 = __VERIFIER_nondet_int() [L725] COND FALSE !(\read(tmp___0)) [L733] tmp___2 = __VERIFIER_nondet_int() [L735] COND FALSE !(\read(tmp___2)) [L745] tmp___1 = __VERIFIER_nondet_int() [L747] COND FALSE !(\read(tmp___1)) [L760] CALL timeShift() [L785] CALL __utac_acc__Specification5_spec__2() [L1125] CALL, EXPR isPumpRunning() [L1005] int retValue_acc ; [L1008] retValue_acc = pumpRunning [L1009] return (retValue_acc); [L1125] RET, EXPR isPumpRunning() [L1125] switchedOnBeforeTS = isPumpRunning() [L785] RET __utac_acc__Specification5_spec__2() [L787] COND FALSE !(\read(pumpRunning)) [L794] COND TRUE \read(systemActive) [L796] CALL processEnvironment() [L930] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L937] CALL processEnvironment__before__methaneAlarm() [L887] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L894] CALL processEnvironment__before__lowWaterSensor() [L844] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L851] FCALL processEnvironment__before__highWaterSensor() [L894] RET processEnvironment__before__lowWaterSensor() [L937] RET processEnvironment__before__methaneAlarm() [L796] RET processEnvironment() [L802] CALL __utac_acc__Specification5_spec__3() [L1131] int tmp ; [L1132] int tmp___0 ; [L1136] CALL, EXPR getWaterLevel() [L137] int retValue_acc ; [L140] retValue_acc = waterLevel [L141] return (retValue_acc); [L1136] RET, EXPR getWaterLevel() [L1136] tmp = getWaterLevel() [L1138] COND TRUE tmp != 2 [L1140] CALL, EXPR isPumpRunning() [L1005] int retValue_acc ; [L1008] retValue_acc = pumpRunning [L1009] return (retValue_acc); [L1140] RET, EXPR isPumpRunning() [L1140] tmp___0 = isPumpRunning() [L1142] COND FALSE !(\read(tmp___0)) [L802] RET __utac_acc__Specification5_spec__3() [L760] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 16:00:15,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)