./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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_spec2_productSimulator.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f3466b08a64c7fddf78a299dda71b27bda6ead813da06152b5ee1cea2f1c203 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:24:45,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:24:45,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:24:45,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:24:45,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:24:45,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:24:45,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:24:45,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:24:45,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:24:45,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:24:45,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:24:45,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:24:45,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:24:45,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:24:45,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:24:45,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:24:45,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:24:45,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:24:45,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:24:45,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:24:45,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:24:45,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:24:45,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:24:45,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:24:45,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:24:45,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:24:45,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:24:45,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:24:45,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:24:45,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:24:45,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:24:45,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:24:45,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:24:45,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:24:45,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:24:45,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:24:45,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:24:45,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:24:45,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:24:45,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:24:45,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:24:45,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:24:45,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:24:45,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:24:45,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:24:45,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:24:45,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:24:45,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:24:45,702 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:24:45,703 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:24:45,703 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:24:45,703 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:24:45,703 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:24:45,704 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:24:45,704 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:24:45,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:24:45,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:24:45,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:24:45,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:24:45,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:24:45,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:24:45,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:24:45,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:24:45,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:24:45,705 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:24:45,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:24:45,705 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:24:45,706 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:24:45,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:24:45,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:24:45,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:24:45,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:24:45,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:24:45,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:24:45,707 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:24:45,707 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f3466b08a64c7fddf78a299dda71b27bda6ead813da06152b5ee1cea2f1c203 [2021-12-22 20:24:45,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:24:45,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:24:45,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:24:45,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:24:45,911 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:24:45,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2021-12-22 20:24:45,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09611c07/ae384c381c614f249aae4b8cae6c68a7/FLAG46f4711dc [2021-12-22 20:24:46,389 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:24:46,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2021-12-22 20:24:46,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09611c07/ae384c381c614f249aae4b8cae6c68a7/FLAG46f4711dc [2021-12-22 20:24:46,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09611c07/ae384c381c614f249aae4b8cae6c68a7 [2021-12-22 20:24:46,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:24:46,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:24:46,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:46,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:24:46,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:24:46,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:46" (1/1) ... [2021-12-22 20:24:46,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cb57c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:46, skipping insertion in model container [2021-12-22 20:24:46,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:46" (1/1) ... [2021-12-22 20:24:46,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:24:46,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:24:47,124 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20836,20849] [2021-12-22 20:24:47,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:47,142 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:24:47,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20836,20849] [2021-12-22 20:24:47,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:47,235 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:24:47,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47 WrapperNode [2021-12-22 20:24:47,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:47,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:47,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:24:47,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:24:47,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,338 INFO L137 Inliner]: procedures = 64, calls = 178, calls flagged for inlining = 75, calls inlined = 450, statements flattened = 2749 [2021-12-22 20:24:47,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:47,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:24:47,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:24:47,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:24:47,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:24:47,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:24:47,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:24:47,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:24:47,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (1/1) ... [2021-12-22 20:24:47,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:24:47,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:24:47,472 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) [2021-12-22 20:24:47,480 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 [2021-12-22 20:24:47,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:24:47,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:24:47,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:24:47,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:24:47,582 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:24:47,596 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:24:48,371 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:24:48,380 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:24:48,380 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:24:48,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:48 BoogieIcfgContainer [2021-12-22 20:24:48,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:24:48,382 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:24:48,383 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:24:48,385 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:24:48,385 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:48,385 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:24:46" (1/3) ... [2021-12-22 20:24:48,386 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a488c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:48, skipping insertion in model container [2021-12-22 20:24:48,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:48,386 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:47" (2/3) ... [2021-12-22 20:24:48,386 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a488c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:48, skipping insertion in model container [2021-12-22 20:24:48,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:48,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:48" (3/3) ... [2021-12-22 20:24:48,387 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_productSimulator.cil.c [2021-12-22 20:24:48,413 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:24:48,413 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:24:48,414 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:24:48,414 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:24:48,414 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:24:48,414 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:24:48,414 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:24:48,414 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:24:48,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 770 states, 769 states have (on average 1.3485045513654097) internal successors, (1037), 769 states have internal predecessors, (1037), 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) [2021-12-22 20:24:48,486 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 507 [2021-12-22 20:24:48,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:48,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:48,493 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:48,493 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:48,493 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:24:48,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 770 states, 769 states have (on average 1.3485045513654097) internal successors, (1037), 769 states have internal predecessors, (1037), 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) [2021-12-22 20:24:48,515 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 507 [2021-12-22 20:24:48,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:48,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:48,516 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:48,520 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:48,524 INFO L791 eck$LassoCheckResult]: Stem: 361#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(38, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 699#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 432#L1134true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;havoc select_features_#t~ret55#1, select_features_#t~ret56#1, select_features_#t~ret57#1, select_features_#t~ret58#1, select_features_#t~ret59#1, select_features_#t~ret60#1;~__SELECTED_FEATURE_base~0 := 1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 640#L1109true select_features_#t~ret55#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret55#1;havoc select_features_#t~ret55#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 390#L1109-1true select_features_#t~ret56#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret56#1;havoc select_features_#t~ret56#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 126#L1109-2true select_features_#t~ret57#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret57#1;havoc select_features_#t~ret57#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 588#L1109-3true select_features_#t~ret58#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret58#1;havoc select_features_#t~ret58#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 143#L1109-4true select_features_#t~ret59#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret59#1;havoc select_features_#t~ret59#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 34#L1109-5true select_features_#t~ret60#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret60#1;havoc select_features_#t~ret60#1; 158#L1126true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := ~__SELECTED_FEATURE_base~0;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 744#L1142true main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 705#L596true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 23#L567true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 625#L694true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 309#L620-2true [2021-12-22 20:24:48,529 INFO L793 eck$LassoCheckResult]: Loop: 309#L620-2true assume !false; 35#L621true assume test_~splverifierCounter~0#1 < 4; 742#L622true test_~tmp~7#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 247#L630true assume !(0 != test_~tmp~7#1); 24#L630-2true test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 575#L640true assume !(0 != test_~tmp___0~2#1); 576#L640-2true test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 165#L650true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 106#L662true assume !(0 != test_~tmp___1~0#1); 339#L662-1true assume { :begin_inline_timeShift } true; 248#L184true assume !(0 != ~pumpRunning~0); 145#L184-2true assume !(0 != ~systemActive~0); 450#L191-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_#t~ret30#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 482#L109-10true __utac_acc__Specification2_spec__2_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret29#1;havoc __utac_acc__Specification2_spec__2_#t~ret29#1; 171#L705true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 227#L705-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 129#L201true assume { :end_inline_timeShift } true; 309#L620-2true [2021-12-22 20:24:48,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 1 times [2021-12-22 20:24:48,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:48,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197985957] [2021-12-22 20:24:48,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:48,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,662 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,694 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:48,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:48,696 INFO L85 PathProgramCache]: Analyzing trace with hash -199906935, now seen corresponding path program 1 times [2021-12-22 20:24:48,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:48,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180547231] [2021-12-22 20:24:48,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:48,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,705 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:48,712 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:48,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1885939910, now seen corresponding path program 1 times [2021-12-22 20:24:48,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:48,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986618066] [2021-12-22 20:24:48,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:48,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:24:48,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:24:48,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:24:48,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986618066] [2021-12-22 20:24:48,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986618066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:24:48,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:24:48,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 20:24:48,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991391053] [2021-12-22 20:24:48,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:24:48,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:24:48,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 20:24:48,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-22 20:24:48,981 INFO L87 Difference]: Start difference. First operand has 770 states, 769 states have (on average 1.3485045513654097) internal successors, (1037), 769 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-12-22 20:24:49,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:24:49,127 INFO L93 Difference]: Finished difference Result 2340 states and 3133 transitions. [2021-12-22 20:24:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 20:24:49,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2340 states and 3133 transitions. [2021-12-22 20:24:49,147 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1550 [2021-12-22 20:24:49,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2340 states to 2300 states and 3093 transitions. [2021-12-22 20:24:49,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2300 [2021-12-22 20:24:49,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2300 [2021-12-22 20:24:49,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2300 states and 3093 transitions. [2021-12-22 20:24:49,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:24:49,169 INFO L681 BuchiCegarLoop]: Abstraction has 2300 states and 3093 transitions. [2021-12-22 20:24:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states and 3093 transitions. [2021-12-22 20:24:49,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 814. [2021-12-22 20:24:49,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 814 states have (on average 1.343980343980344) internal successors, (1094), 813 states have internal predecessors, (1094), 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) [2021-12-22 20:24:49,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1094 transitions. [2021-12-22 20:24:49,213 INFO L704 BuchiCegarLoop]: Abstraction has 814 states and 1094 transitions. [2021-12-22 20:24:49,213 INFO L587 BuchiCegarLoop]: Abstraction has 814 states and 1094 transitions. [2021-12-22 20:24:49,213 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:24:49,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 814 states and 1094 transitions. [2021-12-22 20:24:49,216 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 547 [2021-12-22 20:24:49,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:49,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:49,217 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:49,217 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] [2021-12-22 20:24:49,217 INFO L791 eck$LassoCheckResult]: Stem: 3888#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(38, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 3872#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 3360#L1134 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;havoc select_features_#t~ret55#1, select_features_#t~ret56#1, select_features_#t~ret57#1, select_features_#t~ret58#1, select_features_#t~ret59#1, select_features_#t~ret60#1;~__SELECTED_FEATURE_base~0 := 1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3361#L1109 select_features_#t~ret55#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret55#1;havoc select_features_#t~ret55#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3211#L1109-1 select_features_#t~ret56#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret56#1;havoc select_features_#t~ret56#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3212#L1109-2 select_features_#t~ret57#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret57#1;havoc select_features_#t~ret57#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3576#L1109-3 select_features_#t~ret58#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret58#1;havoc select_features_#t~ret58#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3606#L1109-4 select_features_#t~ret59#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret59#1;havoc select_features_#t~ret59#1;assume { :begin_inline_select_one } true;havoc select_one_#res#1;havoc select_one_#t~nondet54#1, select_one_~retValue_acc~12#1, select_one_~choice~0#1;havoc select_one_~retValue_acc~12#1;select_one_~choice~0#1 := select_one_#t~nondet54#1;havoc select_one_#t~nondet54#1;select_one_~retValue_acc~12#1 := select_one_~choice~0#1;select_one_#res#1 := select_one_~retValue_acc~12#1; 3299#L1109-5 select_features_#t~ret60#1 := select_one_#res#1;assume { :end_inline_select_one } true;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret60#1;havoc select_features_#t~ret60#1; 3300#L1126 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := ~__SELECTED_FEATURE_base~0;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3631#L1142 main_#t~ret24#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 3875#L596 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 3259#L567 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3260#L694 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3580#L620-2 [2021-12-22 20:24:49,240 INFO L793 eck$LassoCheckResult]: Loop: 3580#L620-2 assume !false; 3301#L621 assume test_~splverifierCounter~0#1 < 4; 3302#L622 test_~tmp~7#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 3800#L630 assume !(0 != test_~tmp~7#1); 3214#L630-2 test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 3261#L640 assume !(0 != test_~tmp___0~2#1); 3497#L640-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3645#L650 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3537#L662 assume !(0 != test_~tmp___1~0#1); 3183#L662-1 assume { :begin_inline_timeShift } true; 3802#L184 assume !(0 != ~pumpRunning~0); 3608#L184-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 3609#L327 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0);assume { :begin_inline_processEnvironment__before__methaneAlarm } true; 3499#L284-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0);assume { :begin_inline_processEnvironment__before__lowWaterSensor } true; 3500#L241-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0);assume { :begin_inline_processEnvironment__before__highWaterSensor } true; 3818#L208-26 assume { :end_inline_processEnvironment__before__highWaterSensor } true; 3452#L250-8 assume { :end_inline_processEnvironment__before__lowWaterSensor } true; 3453#L293-2 assume { :end_inline_processEnvironment__before__methaneAlarm } true; 3470#L336 assume { :end_inline_processEnvironment } true; 3424#L191-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_#t~ret30#1, __utac_acc__Specification2_spec__2_~tmp~8#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~8#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 3425#L109-10 __utac_acc__Specification2_spec__2_#t~ret29#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~8#1 := __utac_acc__Specification2_spec__2_#t~ret29#1;havoc __utac_acc__Specification2_spec__2_#t~ret29#1; 3492#L705 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8#1);~methAndRunningLastTime~0 := 0; 3332#L705-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3579#L201 assume { :end_inline_timeShift } true; 3580#L620-2 [2021-12-22 20:24:49,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:49,241 INFO L85 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 2 times [2021-12-22 20:24:49,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:49,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923405376] [2021-12-22 20:24:49,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:49,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,252 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,262 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:49,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:49,263 INFO L85 PathProgramCache]: Analyzing trace with hash 880051575, now seen corresponding path program 1 times [2021-12-22 20:24:49,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:49,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621327622] [2021-12-22 20:24:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:49,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,269 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:49,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:49,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1030143654, now seen corresponding path program 1 times [2021-12-22 20:24:49,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:49,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697677791] [2021-12-22 20:24:49,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:49,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,284 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:49,296 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:52,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:24:52 BoogieIcfgContainer [2021-12-22 20:24:52,321 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:24:52,321 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:24:52,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:24:52,322 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:24:52,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:48" (3/4) ... [2021-12-22 20:24:52,324 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:24:52,387 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:24:52,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:24:52,388 INFO L158 Benchmark]: Toolchain (without parser) took 5580.46ms. Allocated memory was 115.3MB in the beginning and 190.8MB in the end (delta: 75.5MB). Free memory was 83.8MB in the beginning and 127.7MB in the end (delta: -43.9MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2021-12-22 20:24:52,388 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:24:52,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.78ms. Allocated memory is still 115.3MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 20:24:52,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.08ms. Allocated memory is still 115.3MB. Free memory was 81.4MB in the beginning and 72.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 20:24:52,389 INFO L158 Benchmark]: Boogie Preprocessor took 66.73ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 65.4MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-22 20:24:52,390 INFO L158 Benchmark]: RCFGBuilder took 972.66ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 65.4MB in the beginning and 99.9MB in the end (delta: -34.5MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2021-12-22 20:24:52,390 INFO L158 Benchmark]: BuchiAutomizer took 3938.55ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 99.2MB in the beginning and 131.7MB in the end (delta: -32.6MB). Peak memory consumption was 88.3MB. Max. memory is 16.1GB. [2021-12-22 20:24:52,391 INFO L158 Benchmark]: Witness Printer took 65.73ms. Allocated memory is still 190.8MB. Free memory was 131.7MB in the beginning and 127.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 20:24:52,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.78ms. Allocated memory is still 115.3MB. Free memory was 83.5MB in the beginning and 81.4MB in the end (delta: 2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.08ms. Allocated memory is still 115.3MB. Free memory was 81.4MB in the beginning and 72.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.73ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 65.4MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 972.66ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 65.4MB in the beginning and 99.9MB in the end (delta: -34.5MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3938.55ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 99.2MB in the beginning and 131.7MB in the end (delta: -32.6MB). Peak memory consumption was 88.3MB. Max. memory is 16.1GB. * Witness Printer took 65.73ms. Allocated memory is still 190.8MB. Free memory was 131.7MB in the beginning and 127.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 814 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1486 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 814 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7055 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7055 mSDsluCounter, 8398 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7367 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 1031 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 620]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, __SELECTED_FEATURE_base=1, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4584f56c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65085dc9=0, methaneLevelCritical=0, tmp=0, retValue_acc=0, retValue_acc=0, __GUIDSL_ROOT_PRODUCTION=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d7d5e43=0, tmp___2=0, cleanupTimeShifts=4, choice=29, \result=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12c6eb73=0, __SELECTED_FEATURE_methaneAlarm=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49b321b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2857419b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@354f53a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b8fcbdf=0, __SELECTED_FEATURE_lowWaterSensor=0, head=0, pumpRunning=0, __SELECTED_FEATURE_highWaterSensor=0, retValue_acc=1, \result=0, \result=1, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_stopCommand=0, methAndRunningLastTime=0, tmp=1, \result=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25ae18f6=0, head=0, __SELECTED_FEATURE_startCommand=29, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@157d00cb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54f1c560=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@774d04d6=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1508976d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d0b073d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 620]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int __SELECTED_FEATURE_base ; [L51] int __SELECTED_FEATURE_highWaterSensor ; [L52] int __SELECTED_FEATURE_lowWaterSensor ; [L53] int __SELECTED_FEATURE_methaneQuery ; [L54] int __SELECTED_FEATURE_methaneAlarm ; [L55] int __SELECTED_FEATURE_stopCommand ; [L56] int __SELECTED_FEATURE_startCommand ; [L57] int __GUIDSL_ROOT_PRODUCTION ; [L66] int waterLevel = 1; [L67] int methaneLevelCritical = 0; [L176] int pumpRunning = 0; [L177] int systemActive = 1; [L508] int cleanupTimeShifts = 4; [L688] int methAndRunningLastTime ; [L896] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int retValue_acc ; [L588] int tmp ; [L592] CALL select_helpers() [L1133] __GUIDSL_ROOT_PRODUCTION = 1 [L592] RET select_helpers() [L593] CALL select_features() [L1118] __SELECTED_FEATURE_base = 1 [L1119] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1119] RET, EXPR select_one() [L1119] __SELECTED_FEATURE_highWaterSensor = select_one() [L1120] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1120] RET, EXPR select_one() [L1120] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1121] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1121] RET, EXPR select_one() [L1121] __SELECTED_FEATURE_methaneQuery = select_one() [L1122] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1122] RET, EXPR select_one() [L1122] __SELECTED_FEATURE_methaneAlarm = select_one() [L1123] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1123] RET, EXPR select_one() [L1123] __SELECTED_FEATURE_stopCommand = select_one() [L1124] CALL, EXPR select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); [L1124] RET, EXPR select_one() [L1124] __SELECTED_FEATURE_startCommand = select_one() [L593] RET select_features() [L594] CALL, EXPR valid_product() [L1138] int retValue_acc ; [L1141] retValue_acc = __SELECTED_FEATURE_base [L1142] return (retValue_acc); [L594] RET, EXPR valid_product() [L594] tmp = valid_product() [L596] COND TRUE \read(tmp) [L598] FCALL setup() [L599] CALL runTest() [L577] CALL __utac_acc__Specification2_spec__1() [L693] methAndRunningLastTime = 0 [L577] RET __utac_acc__Specification2_spec__1() [L578] CALL test() [L611] int splverifierCounter ; [L612] int tmp ; [L613] int tmp___0 ; [L614] int tmp___1 ; [L615] int tmp___2 ; [L618] splverifierCounter = 0 Loop: [L620] COND TRUE 1 [L622] COND TRUE splverifierCounter < 4 [L628] tmp = __VERIFIER_nondet_int() [L630] COND FALSE !(\read(tmp)) [L638] tmp___0 = __VERIFIER_nondet_int() [L640] COND FALSE !(\read(tmp___0)) [L648] tmp___2 = __VERIFIER_nondet_int() [L650] COND FALSE !(\read(tmp___2)) [L660] tmp___1 = __VERIFIER_nondet_int() [L662] COND FALSE !(\read(tmp___1)) [L675] CALL timeShift() [L184] COND FALSE !(\read(pumpRunning)) [L191] COND TRUE \read(systemActive) [L193] CALL processEnvironment() [L327] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L334] CALL processEnvironment__before__methaneAlarm() [L284] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L291] CALL processEnvironment__before__lowWaterSensor() [L241] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L248] FCALL processEnvironment__before__highWaterSensor() [L291] RET processEnvironment__before__lowWaterSensor() [L334] RET processEnvironment__before__methaneAlarm() [L193] RET processEnvironment() [L199] CALL __utac_acc__Specification2_spec__2() [L698] int tmp ; [L699] int tmp___0 ; [L703] CALL, EXPR isMethaneLevelCritical() [L105] int retValue_acc ; [L108] retValue_acc = methaneLevelCritical [L109] return (retValue_acc); [L703] RET, EXPR isMethaneLevelCritical() [L703] tmp = isMethaneLevelCritical() [L705] COND FALSE !(\read(tmp)) [L721] methAndRunningLastTime = 0 [L199] RET __utac_acc__Specification2_spec__2() [L675] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:24:52,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)