./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf 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_product55.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 647f9a243e92567482b901aa26f051c7fecee7f7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 04:14:13,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 04:14:13,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 04:14:13,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 04:14:13,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 04:14:13,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 04:14:13,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 04:14:13,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 04:14:13,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 04:14:13,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 04:14:13,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 04:14:13,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 04:14:13,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 04:14:13,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 04:14:13,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 04:14:13,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 04:14:13,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 04:14:13,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 04:14:13,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 04:14:13,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 04:14:13,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 04:14:13,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 04:14:13,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 04:14:13,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 04:14:13,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 04:14:13,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 04:14:13,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 04:14:13,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 04:14:13,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 04:14:13,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 04:14:13,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 04:14:13,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 04:14:13,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 04:14:13,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 04:14:13,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 04:14:13,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 04:14:13,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 04:14:13,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 04:14:13,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 04:14:13,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 04:14:13,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 04:14:13,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 04:14:13,703 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 04:14:13,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 04:14:13,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 04:14:13,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 04:14:13,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 04:14:13,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 04:14:13,706 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 04:14:13,706 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 04:14:13,707 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 04:14:13,707 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 04:14:13,707 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 04:14:13,707 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 04:14:13,708 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 04:14:13,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 04:14:13,708 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 04:14:13,708 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 04:14:13,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 04:14:13,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 04:14:13,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 04:14:13,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 04:14:13,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 04:14:13,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 04:14:13,709 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 04:14:13,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 04:14:13,709 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 04:14:13,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 04:14:13,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 04:14:13,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 04:14:13,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 04:14:13,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 04:14:13,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 04:14:13,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 04:14:13,711 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 04:14:13,711 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647f9a243e92567482b901aa26f051c7fecee7f7 [2021-08-31 04:14:13,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 04:14:13,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 04:14:14,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 04:14:14,000 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 04:14:14,001 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 04:14:14,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2021-08-31 04:14:14,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5f8e7a5/ccef678549774362a3140d701946269b/FLAG48c1a26fe [2021-08-31 04:14:14,440 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 04:14:14,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2021-08-31 04:14:14,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5f8e7a5/ccef678549774362a3140d701946269b/FLAG48c1a26fe [2021-08-31 04:14:14,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5f8e7a5/ccef678549774362a3140d701946269b [2021-08-31 04:14:14,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 04:14:14,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 04:14:14,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 04:14:14,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 04:14:14,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 04:14:14,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a144e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14, skipping insertion in model container [2021-08-31 04:14:14,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 04:14:14,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 04:14:14,732 WARN L228 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_product55.cil.c[12801,12814] [2021-08-31 04:14:14,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:14:14,774 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 04:14:14,797 WARN L228 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_product55.cil.c[12801,12814] [2021-08-31 04:14:14,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:14:14,818 INFO L208 MainTranslator]: Completed translation [2021-08-31 04:14:14,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14 WrapperNode [2021-08-31 04:14:14,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 04:14:14,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 04:14:14,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 04:14:14,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 04:14:14,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 04:14:14,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 04:14:14,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 04:14:14,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 04:14:14,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 04:14:14,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 04:14:14,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 04:14:14,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 04:14:14,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (1/1) ... [2021-08-31 04:14:14,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:14:14,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:14:14,948 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) [2021-08-31 04:14:14,956 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 [2021-08-31 04:14:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 04:14:14,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 04:14:14,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 04:14:14,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 04:14:15,390 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 04:14:15,391 INFO L299 CfgBuilder]: Removed 294 assume(true) statements. [2021-08-31 04:14:15,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:14:15 BoogieIcfgContainer [2021-08-31 04:14:15,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 04:14:15,393 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 04:14:15,393 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 04:14:15,395 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 04:14:15,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:14:15,395 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 04:14:14" (1/3) ... [2021-08-31 04:14:15,396 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@623b5273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:14:15, skipping insertion in model container [2021-08-31 04:14:15,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:14:15,396 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:14" (2/3) ... [2021-08-31 04:14:15,396 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@623b5273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:14:15, skipping insertion in model container [2021-08-31 04:14:15,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:14:15,397 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:14:15" (3/3) ... [2021-08-31 04:14:15,397 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2021-08-31 04:14:15,422 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 04:14:15,422 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 04:14:15,423 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 04:14:15,423 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 04:14:15,423 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 04:14:15,423 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 04:14:15,423 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 04:14:15,423 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 04:14:15,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.530612244897959) internal successors, (300), 196 states have internal predecessors, (300), 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) [2021-08-31 04:14:15,464 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2021-08-31 04:14:15,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:15,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:15,469 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:15,470 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:15,470 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 04:14:15,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.530612244897959) internal successors, (300), 196 states have internal predecessors, (300), 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) [2021-08-31 04:14:15,482 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2021-08-31 04:14:15,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:15,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:15,484 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:15,484 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:15,492 INFO L791 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 123#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 149#L536true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 72#L544true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 187#L500true assume 0 != main_~tmp~3; 12#L471true ~switchedOnBeforeTS~0 := 0; 59#L987true havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 146#L1008-1true [2021-08-31 04:14:15,493 INFO L793 eck$LassoCheckResult]: Loop: 146#L1008-1true assume !false; 22#L570true assume test_~splverifierCounter~0 < 4; 80#L571true test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 101#L579true assume !(0 != test_~tmp~4); 100#L579-1true test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 103#L589true assume !(0 != test_~tmp___0~0); 68#L589-1true test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 144#L599true assume 0 != test_~tmp___2~0; 133#L605-1true havoc __utac_acc__Specification5_spec__2_#t~ret80;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 84#L887true __utac_acc__Specification5_spec__2_#t~ret80 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret80;havoc __utac_acc__Specification5_spec__2_#t~ret80; 159#L997true assume !(0 != ~pumpRunning~0); 179#L750true assume !(0 != ~systemActive~0); 39#L757true havoc __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_#t~ret82, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 156#L707true __utac_acc__Specification5_spec__3_#t~ret81 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 62#L1008true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 146#L1008-1true [2021-08-31 04:14:15,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:15,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-31 04:14:15,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:15,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026589723] [2021-08-31 04:14:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:15,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:15,680 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:15,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:15,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:15,788 INFO L82 PathProgramCache]: Analyzing trace with hash -236750955, now seen corresponding path program 1 times [2021-08-31 04:14:15,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:15,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271782359] [2021-08-31 04:14:15,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:15,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:15,798 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:15,816 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:15,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:15,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1697274255, now seen corresponding path program 1 times [2021-08-31 04:14:15,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:15,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964037342] [2021-08-31 04:14:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:15,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:14:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:14:15,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:14:15,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964037342] [2021-08-31 04:14:15,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964037342] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:14:15,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:14:15,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 04:14:15,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874051916] [2021-08-31 04:14:16,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:14:16,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-31 04:14:16,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-31 04:14:16,053 INFO L87 Difference]: Start difference. First operand has 197 states, 196 states have (on average 1.530612244897959) internal successors, (300), 196 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-08-31 04:14:17,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:14:17,007 INFO L93 Difference]: Finished difference Result 445 states and 652 transitions. [2021-08-31 04:14:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 04:14:17,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 652 transitions. [2021-08-31 04:14:17,014 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 291 [2021-08-31 04:14:17,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 424 states and 631 transitions. [2021-08-31 04:14:17,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 424 [2021-08-31 04:14:17,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 424 [2021-08-31 04:14:17,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 424 states and 631 transitions. [2021-08-31 04:14:17,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:14:17,022 INFO L681 BuchiCegarLoop]: Abstraction has 424 states and 631 transitions. [2021-08-31 04:14:17,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states and 631 transitions. [2021-08-31 04:14:17,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 239. [2021-08-31 04:14:17,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 239 states have (on average 1.4769874476987448) internal successors, (353), 238 states have internal predecessors, (353), 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) [2021-08-31 04:14:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 353 transitions. [2021-08-31 04:14:17,056 INFO L704 BuchiCegarLoop]: Abstraction has 239 states and 353 transitions. [2021-08-31 04:14:17,056 INFO L587 BuchiCegarLoop]: Abstraction has 239 states and 353 transitions. [2021-08-31 04:14:17,056 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 04:14:17,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 239 states and 353 transitions. [2021-08-31 04:14:17,057 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2021-08-31 04:14:17,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:17,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:17,058 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:17,058 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:17,058 INFO L791 eck$LassoCheckResult]: Stem: 848#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 745#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 746#L536 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 803#L544 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 845#L500 assume 0 != main_~tmp~3; 715#L471 ~switchedOnBeforeTS~0 := 0; 716#L987 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 801#L1008-1 [2021-08-31 04:14:17,058 INFO L793 eck$LassoCheckResult]: Loop: 801#L1008-1 assume !false; 742#L570 assume test_~splverifierCounter~0 < 4; 743#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 670#L579 assume !(0 != test_~tmp~4); 668#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 669#L589 assume !(0 != test_~tmp___0~0); 676#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 794#L599 assume 0 != test_~tmp___2~0; 771#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret80;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 772#L887 __utac_acc__Specification5_spec__2_#t~ret80 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret80;havoc __utac_acc__Specification5_spec__2_#t~ret80; 820#L997 assume !(0 != ~pumpRunning~0); 822#L750 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 842#L834 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret59, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 838#L808-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 777#L782-3 assume !(0 == ~pumpRunning~0); 690#L757 havoc __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_#t~ret82, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 790#L707 __utac_acc__Specification5_spec__3_#t~ret81 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 816#L1008 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 801#L1008-1 [2021-08-31 04:14:17,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:17,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-31 04:14:17,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:17,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925650560] [2021-08-31 04:14:17,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:17,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:17,104 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:17,160 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:17,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:17,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1192194302, now seen corresponding path program 1 times [2021-08-31 04:14:17,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:17,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592152436] [2021-08-31 04:14:17,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:17,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:14:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:14:17,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:14:17,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592152436] [2021-08-31 04:14:17,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592152436] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:14:17,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:14:17,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:14:17,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808631665] [2021-08-31 04:14:17,187 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:14:17,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:14:17,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:14:17,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:14:17,189 INFO L87 Difference]: Start difference. First operand 239 states and 353 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-08-31 04:14:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:14:17,487 INFO L93 Difference]: Finished difference Result 250 states and 344 transitions. [2021-08-31 04:14:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 04:14:17,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 250 states and 344 transitions. [2021-08-31 04:14:17,489 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-08-31 04:14:17,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 250 states to 250 states and 344 transitions. [2021-08-31 04:14:17,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 250 [2021-08-31 04:14:17,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 250 [2021-08-31 04:14:17,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 250 states and 344 transitions. [2021-08-31 04:14:17,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:14:17,492 INFO L681 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2021-08-31 04:14:17,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states and 344 transitions. [2021-08-31 04:14:17,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2021-08-31 04:14:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 250 states have (on average 1.376) internal successors, (344), 249 states have internal predecessors, (344), 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) [2021-08-31 04:14:17,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 344 transitions. [2021-08-31 04:14:17,500 INFO L704 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2021-08-31 04:14:17,500 INFO L587 BuchiCegarLoop]: Abstraction has 250 states and 344 transitions. [2021-08-31 04:14:17,500 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 04:14:17,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 250 states and 344 transitions. [2021-08-31 04:14:17,501 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-08-31 04:14:17,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:17,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:17,502 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:17,502 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:17,502 INFO L791 eck$LassoCheckResult]: Stem: 1325#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1225#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1226#L536 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1274#L544 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1320#L500 assume 0 != main_~tmp~3; 1195#L471 ~switchedOnBeforeTS~0 := 0; 1196#L987 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1302#L1008-1 [2021-08-31 04:14:17,502 INFO L793 eck$LassoCheckResult]: Loop: 1302#L1008-1 assume !false; 1390#L570 assume test_~splverifierCounter~0 < 4; 1391#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 1404#L579 assume !(0 != test_~tmp~4); 1402#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 1401#L589 assume !(0 != test_~tmp___0~0); 1399#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 1265#L599 assume 0 != test_~tmp___2~0; 1247#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret80;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 1248#L887 __utac_acc__Specification5_spec__2_#t~ret80 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret80;havoc __utac_acc__Specification5_spec__2_#t~ret80; 1289#L997 assume !(0 != ~pumpRunning~0); 1290#L750 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1324#L834 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret59, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 1311#L808-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1250#L782-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1251#L715-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1268#L720-3 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 1231#L936-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1232#L936-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1309#L942-3 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 1240#L786-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1173#L757 havoc __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_#t~ret82, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1263#L707 __utac_acc__Specification5_spec__3_#t~ret81 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 1285#L1008 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 1302#L1008-1 [2021-08-31 04:14:17,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:17,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-08-31 04:14:17,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:17,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637190003] [2021-08-31 04:14:17,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:17,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:17,531 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:17,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:17,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:17,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1771616150, now seen corresponding path program 1 times [2021-08-31 04:14:17,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:17,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807437516] [2021-08-31 04:14:17,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:17,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:14:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:14:17,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:14:17,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807437516] [2021-08-31 04:14:17,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807437516] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:14:17,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:14:17,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-31 04:14:17,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998295561] [2021-08-31 04:14:17,591 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:14:17,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:14:17,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 04:14:17,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 04:14:17,592 INFO L87 Difference]: Start difference. First operand 250 states and 344 transitions. cyclomatic complexity: 97 Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-08-31 04:14:18,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:14:18,636 INFO L93 Difference]: Finished difference Result 1069 states and 1483 transitions. [2021-08-31 04:14:18,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-31 04:14:18,636 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1069 states and 1483 transitions. [2021-08-31 04:14:18,642 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 743 [2021-08-31 04:14:18,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1069 states to 1069 states and 1483 transitions. [2021-08-31 04:14:18,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1069 [2021-08-31 04:14:18,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1069 [2021-08-31 04:14:18,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1069 states and 1483 transitions. [2021-08-31 04:14:18,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:14:18,650 INFO L681 BuchiCegarLoop]: Abstraction has 1069 states and 1483 transitions. [2021-08-31 04:14:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states and 1483 transitions. [2021-08-31 04:14:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 490. [2021-08-31 04:14:18,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 490 states have (on average 1.3591836734693878) internal successors, (666), 489 states have internal predecessors, (666), 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) [2021-08-31 04:14:18,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 666 transitions. [2021-08-31 04:14:18,662 INFO L704 BuchiCegarLoop]: Abstraction has 490 states and 666 transitions. [2021-08-31 04:14:18,662 INFO L587 BuchiCegarLoop]: Abstraction has 490 states and 666 transitions. [2021-08-31 04:14:18,662 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 04:14:18,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 490 states and 666 transitions. [2021-08-31 04:14:18,664 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 350 [2021-08-31 04:14:18,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:18,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:18,665 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:18,665 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:18,665 INFO L791 eck$LassoCheckResult]: Stem: 2676#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 2565#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2566#L536 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 2617#L544 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 2670#L500 assume 0 != main_~tmp~3; 2534#L471 ~switchedOnBeforeTS~0 := 0; 2535#L987 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2649#L1008-1 [2021-08-31 04:14:18,665 INFO L793 eck$LassoCheckResult]: Loop: 2649#L1008-1 assume !false; 2835#L570 assume test_~splverifierCounter~0 < 4; 2836#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 2948#L579 assume !(0 != test_~tmp~4); 2946#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 2945#L589 assume !(0 != test_~tmp___0~0); 2943#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 2942#L599 assume 0 != test_~tmp___2~0; 2941#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret80;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 2949#L887 __utac_acc__Specification5_spec__2_#t~ret80 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret80;havoc __utac_acc__Specification5_spec__2_#t~ret80; 2916#L997 assume !(0 != ~pumpRunning~0); 2851#L750 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2850#L834 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret59, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 2807#L808-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret58, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 2591#L782-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret78, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2592#L715-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2610#L720-3 isHighWaterLevel_#t~ret78 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret78;havoc isHighWaterLevel_#t~ret78; 2572#L936-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2573#L936-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2655#L942-3 processEnvironment__wrappee__highWaterSensor_#t~ret58 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret58;havoc processEnvironment__wrappee__highWaterSensor_#t~ret58; 2580#L786-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 2509#L757 havoc __utac_acc__Specification5_spec__3_#t~ret81, __utac_acc__Specification5_spec__3_#t~ret82, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 2846#L707 __utac_acc__Specification5_spec__3_#t~ret81 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret81;havoc __utac_acc__Specification5_spec__3_#t~ret81; 2842#L1008 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 2843#L887-1 __utac_acc__Specification5_spec__3_#t~ret82 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret82;havoc __utac_acc__Specification5_spec__3_#t~ret82; 2838#L1012 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2649#L1008-1 [2021-08-31 04:14:18,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:18,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-08-31 04:14:18,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:18,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58710732] [2021-08-31 04:14:18,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:18,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:18,683 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:18,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:18,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1716079387, now seen corresponding path program 1 times [2021-08-31 04:14:18,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:18,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93137082] [2021-08-31 04:14:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:18,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:18,739 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:18,748 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:18,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:18,748 INFO L82 PathProgramCache]: Analyzing trace with hash 612676267, now seen corresponding path program 1 times [2021-08-31 04:14:18,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:18,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917663614] [2021-08-31 04:14:18,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:18,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:18,780 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:18,812 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:57,495 WARN L210 SmtUtils]: Spent 38.45s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-31 04:15:36,319 WARN L210 SmtUtils]: Spent 18.43s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-31 04:15:36,407 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 04:15:36,410 INFO L158 Benchmark]: Toolchain (without parser) took 81941.80ms. Allocated memory was 54.5MB in the beginning and 121.6MB in the end (delta: 67.1MB). Free memory was 30.7MB in the beginning and 89.3MB in the end (delta: -58.6MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2021-08-31 04:15:36,410 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:15:36,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.60ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 30.5MB in the beginning and 43.6MB in the end (delta: -13.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-08-31 04:15:36,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.94ms. Allocated memory is still 69.2MB. Free memory was 43.6MB in the beginning and 38.8MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 04:15:36,411 INFO L158 Benchmark]: Boogie Preprocessor took 36.63ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 49.0MB in the end (delta: -10.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-08-31 04:15:36,412 INFO L158 Benchmark]: RCFGBuilder took 486.57ms. Allocated memory is still 69.2MB. Free memory was 49.0MB in the beginning and 43.2MB in the end (delta: 5.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2021-08-31 04:15:36,412 INFO L158 Benchmark]: BuchiAutomizer took 81016.43ms. Allocated memory was 69.2MB in the beginning and 121.6MB in the end (delta: 52.4MB). Free memory was 43.2MB in the beginning and 89.3MB in the end (delta: -46.0MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2021-08-31 04:15:36,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.60ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 30.5MB in the beginning and 43.6MB in the end (delta: -13.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.94ms. Allocated memory is still 69.2MB. Free memory was 43.6MB in the beginning and 38.8MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.63ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 49.0MB in the end (delta: -10.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * RCFGBuilder took 486.57ms. Allocated memory is still 69.2MB. Free memory was 49.0MB in the beginning and 43.2MB in the end (delta: 5.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 81016.43ms. Allocated memory was 69.2MB in the beginning and 121.6MB in the end (delta: 52.4MB). Free memory was 43.2MB in the beginning and 89.3MB in the end (delta: -46.0MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 490 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 04:15:36,452 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...