./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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_product07.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 18788254abfa5723715f3d4730fe86dc47b8285d ............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:16:21,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:16:21,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:16:21,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:16:21,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:16:21,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:16:21,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:16:21,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:16:21,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:16:21,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:16:21,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:16:21,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:16:21,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:16:21,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:16:21,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:16:21,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:16:21,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:16:21,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:16:21,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:16:21,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:16:21,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:16:21,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:16:21,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:16:21,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:16:21,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:16:21,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:16:21,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:16:21,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:16:21,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:16:21,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:16:21,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:16:21,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:16:21,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:16:21,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:16:21,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:16:21,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:16:21,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:16:21,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:16:21,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:16:21,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:16:21,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:16:21,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:16:21,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:16:21,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:16:21,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:16:21,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:16:21,969 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:16:21,969 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:16:21,969 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:16:21,970 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:16:21,970 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:16:21,970 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:16:21,971 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:16:21,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:16:21,971 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:16:21,972 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:16:21,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:16:21,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:16:21,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:16:21,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:16:21,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:16:21,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:16:21,973 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:16:21,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:16:21,974 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:16:21,974 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:16:21,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:16:21,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:16:21,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:16:21,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:16:21,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:16:21,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:16:21,976 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:16:21,977 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18788254abfa5723715f3d4730fe86dc47b8285d [2021-07-06 20:16:22,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:16:22,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:16:22,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:16:22,319 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:16:22,320 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:16:22,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2021-07-06 20:16:22,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5185ae3a8/9b7f34d4e37b4cce859533887a506c2b/FLAGa85952cc2 [2021-07-06 20:16:22,843 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:16:22,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2021-07-06 20:16:22,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5185ae3a8/9b7f34d4e37b4cce859533887a506c2b/FLAGa85952cc2 [2021-07-06 20:16:23,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5185ae3a8/9b7f34d4e37b4cce859533887a506c2b [2021-07-06 20:16:23,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:16:23,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:16:23,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:16:23,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:16:23,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:16:23,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ff30fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23, skipping insertion in model container [2021-07-06 20:16:23,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:16:23,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:16:23,501 WARN L224 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_product07.cil.c[5838,5851] [2021-07-06 20:16:23,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:16:23,590 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:16:23,626 WARN L224 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_product07.cil.c[5838,5851] [2021-07-06 20:16:23,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:16:23,671 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:16:23,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23 WrapperNode [2021-07-06 20:16:23,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:16:23,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:16:23,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:16:23,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:16:23,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:16:23,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:16:23,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:16:23,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:16:23,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:16:23,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:16:23,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:16:23,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:16:23,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (1/1) ... [2021-07-06 20:16:23,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:16:23,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:16:23,808 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) [2021-07-06 20:16:23,821 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 [2021-07-06 20:16:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:16:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:16:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:16:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:16:24,526 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:16:24,526 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-07-06 20:16:24,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:16:24 BoogieIcfgContainer [2021-07-06 20:16:24,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:16:24,530 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:16:24,530 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:16:24,533 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:16:24,534 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:16:24,534 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:16:23" (1/3) ... [2021-07-06 20:16:24,535 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37245aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:16:24, skipping insertion in model container [2021-07-06 20:16:24,535 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:16:24,535 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:16:23" (2/3) ... [2021-07-06 20:16:24,536 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37245aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:16:24, skipping insertion in model container [2021-07-06 20:16:24,536 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:16:24,536 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:16:24" (3/3) ... [2021-07-06 20:16:24,541 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product07.cil.c [2021-07-06 20:16:24,584 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:16:24,585 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:16:24,585 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:16:24,585 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:16:24,585 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:16:24,585 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:16:24,585 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:16:24,585 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:16:24,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 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) [2021-07-06 20:16:24,618 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:16:24,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:16:24,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:16:24,625 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:16:24,625 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:16:24,625 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:16:24,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 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) [2021-07-06 20:16:24,638 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:16:24,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:16:24,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:16:24,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:16:24,640 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:16:24,649 INFO L791 eck$LassoCheckResult]: Stem: 31#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 5#L376true 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; 28#L384true main_#t~ret75 := valid_product_#res;main_~tmp~5 := main_#t~ret75;havoc main_#t~ret75; 18#L848true assume 0 != main_~tmp~5; 26#L823true ~methAndRunningLastTime~0 := 0; 40#L868true havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 42#L879-1true [2021-07-06 20:16:24,650 INFO L793 eck$LassoCheckResult]: Loop: 42#L879-1true assume !false; 61#L295true assume test_~splverifierCounter~0 < 4; 7#L296true test_~tmp~1 := test_#t~nondet35;havoc test_#t~nondet35; 36#L304true assume !(0 != test_~tmp~1); 39#L304-1true test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 23#L314true assume !(0 != test_~tmp___0~0); 3#L314-1true test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 56#L324true assume 0 != test_~tmp___2~0; 30#L330-1true assume !(0 != ~pumpRunning~0); 21#L142true assume !(0 != ~systemActive~0); 9#L149true havoc __utac_acc__Specification2_spec__2_#t~ret76, __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 4#L91-1true __utac_acc__Specification2_spec__2_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret76;havoc __utac_acc__Specification2_spec__2_#t~ret76; 54#L879true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 42#L879-1true [2021-07-06 20:16:24,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:16:24,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-07-06 20:16:24,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:16:24,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241921938] [2021-07-06 20:16:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:16:24,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:16:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:24,900 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:25,001 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:16:25,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:16:25,040 INFO L82 PathProgramCache]: Analyzing trace with hash 10972499, now seen corresponding path program 1 times [2021-07-06 20:16:25,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:16:25,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402981042] [2021-07-06 20:16:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:16:25,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:16:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:25,050 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:25,065 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:16:25,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:16:25,069 INFO L82 PathProgramCache]: Analyzing trace with hash 844269005, now seen corresponding path program 1 times [2021-07-06 20:16:25,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:16:25,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129320305] [2021-07-06 20:16:25,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:16:25,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:16:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:16:25,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:16:25,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:16:25,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:16:25,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:16:25,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:16:25,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:16:25,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:16:25,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:16:25,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:16:25,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:16:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:16:25,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:16:25,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129320305] [2021-07-06 20:16:25,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129320305] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:16:25,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:16:25,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:16:25,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167892232] [2021-07-06 20:16:25,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:16:25,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-06 20:16:25,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:16:25,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:16:25,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:16:25,304 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 71 states have internal predecessors, (109), 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 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-07-06 20:16:25,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:16:25,538 INFO L93 Difference]: Finished difference Result 190 states and 265 transitions. [2021-07-06 20:16:25,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 20:16:25,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 265 transitions. [2021-07-06 20:16:25,549 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 119 [2021-07-06 20:16:25,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 169 states and 244 transitions. [2021-07-06 20:16:25,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2021-07-06 20:16:25,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2021-07-06 20:16:25,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 244 transitions. [2021-07-06 20:16:25,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:16:25,561 INFO L681 BuchiCegarLoop]: Abstraction has 169 states and 244 transitions. [2021-07-06 20:16:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 244 transitions. [2021-07-06 20:16:25,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 109. [2021-07-06 20:16:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.4403669724770642) internal successors, (157), 108 states have internal predecessors, (157), 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) [2021-07-06 20:16:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2021-07-06 20:16:25,599 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 157 transitions. [2021-07-06 20:16:25,599 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 157 transitions. [2021-07-06 20:16:25,600 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:16:25,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 157 transitions. [2021-07-06 20:16:25,601 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2021-07-06 20:16:25,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:16:25,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:16:25,602 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:16:25,603 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:16:25,603 INFO L791 eck$LassoCheckResult]: Stem: 322#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(13);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string26.base, #t~string26.offset, 1);call write~init~int(80, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(117, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(109, #t~string26.base, 3 + #t~string26.offset, 1);call write~init~int(112, #t~string26.base, 4 + #t~string26.offset, 1);call write~init~int(58, #t~string26.base, 5 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 6 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string32.base, #t~string32.offset, 1);call write~init~int(32, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string34.base, #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 1 + #t~string34.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0; 290#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 284#L376 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; 285#L384 main_#t~ret75 := valid_product_#res;main_~tmp~5 := main_#t~ret75;havoc main_#t~ret75; 306#L848 assume 0 != main_~tmp~5; 307#L823 ~methAndRunningLastTime~0 := 0; 317#L868 havoc test_#t~nondet35, test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 332#L879-1 [2021-07-06 20:16:25,607 INFO L793 eck$LassoCheckResult]: Loop: 332#L879-1 assume !false; 333#L295 assume test_~splverifierCounter~0 < 4; 288#L296 test_~tmp~1 := test_#t~nondet35;havoc test_#t~nondet35; 289#L304 assume !(0 != test_~tmp~1); 326#L304-1 test_~tmp___0~0 := test_#t~nondet36;havoc test_#t~nondet36; 311#L314 assume !(0 != test_~tmp___0~0); 280#L314-1 test_~tmp___2~0 := test_#t~nondet37;havoc test_#t~nondet37; 281#L324 assume 0 != test_~tmp___2~0; 321#L330-1 assume !(0 != ~pumpRunning~0); 297#L142 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 308#L174 assume !(0 != ~pumpRunning~0); 291#L149 havoc __utac_acc__Specification2_spec__2_#t~ret76, __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 282#L91-1 __utac_acc__Specification2_spec__2_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret76;havoc __utac_acc__Specification2_spec__2_#t~ret76; 283#L879 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 332#L879-1 [2021-07-06 20:16:25,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:16:25,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-07-06 20:16:25,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:16:25,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45266234] [2021-07-06 20:16:25,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:16:25,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:16:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:25,658 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:25,702 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,719 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:16:25,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:16:25,721 INFO L82 PathProgramCache]: Analyzing trace with hash 319619009, now seen corresponding path program 1 times [2021-07-06 20:16:25,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:16:25,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635274296] [2021-07-06 20:16:25,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:16:25,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:16:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:25,724 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:25,726 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,728 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:16:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:16:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash 382006919, now seen corresponding path program 1 times [2021-07-06 20:16:25,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:16:25,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963364392] [2021-07-06 20:16:25,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:16:25,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:16:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:25,755 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:16:25,795 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:16:25,806 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:16:25,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:16:25,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-07-06 20:17:06,484 WARN L205 SmtUtils]: Spent 40.60 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-07-06 20:17:06,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:06,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2130 [2021-07-06 20:17:26,812 WARN L205 SmtUtils]: Spent 20.23 s on a formula simplification that was a NOOP. DAG size: 435 [2021-07-06 20:17:26,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:17:26 BoogieIcfgContainer [2021-07-06 20:17:26,890 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:17:26,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:17:26,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:17:26,890 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:17:26,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:16:24" (3/4) ... [2021-07-06 20:17:26,893 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:17:26,926 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:17:26,926 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:17:26,927 INFO L168 Benchmark]: Toolchain (without parser) took 63713.83 ms. Allocated memory was 77.6 MB in the beginning and 117.4 MB in the end (delta: 39.8 MB). Free memory was 57.9 MB in the beginning and 57.6 MB in the end (delta: 273.3 kB). Peak memory consumption was 38.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:17:26,928 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 77.6 MB. Free memory was 57.7 MB in the beginning and 57.6 MB in the end (delta: 53.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:17:26,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.20 ms. Allocated memory is still 77.6 MB. Free memory was 57.8 MB in the beginning and 50.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:17:26,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.36 ms. Allocated memory is still 77.6 MB. Free memory was 50.2 MB in the beginning and 47.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:17:26,929 INFO L168 Benchmark]: Boogie Preprocessor took 37.45 ms. Allocated memory is still 77.6 MB. Free memory was 47.3 MB in the beginning and 45.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:17:26,930 INFO L168 Benchmark]: RCFGBuilder took 742.31 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 45.2 MB in the beginning and 65.0 MB in the end (delta: -19.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:17:26,930 INFO L168 Benchmark]: BuchiAutomizer took 62359.62 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.0 MB in the beginning and 60.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.1 GB. [2021-07-06 20:17:26,931 INFO L168 Benchmark]: Witness Printer took 36.24 ms. Allocated memory is still 117.4 MB. Free memory was 60.6 MB in the beginning and 57.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:17:26,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 77.6 MB. Free memory was 57.7 MB in the beginning and 57.6 MB in the end (delta: 53.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 456.20 ms. Allocated memory is still 77.6 MB. Free memory was 57.8 MB in the beginning and 50.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.36 ms. Allocated memory is still 77.6 MB. Free memory was 50.2 MB in the beginning and 47.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.45 ms. Allocated memory is still 77.6 MB. Free memory was 47.3 MB in the beginning and 45.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 742.31 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 45.2 MB in the beginning and 65.0 MB in the end (delta: -19.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 62359.62 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.0 MB in the beginning and 60.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.1 GB. * Witness Printer took 36.24 ms. Allocated memory is still 117.4 MB. Free memory was 60.6 MB in the beginning and 57.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 6 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 62.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 61.9s. Construction of modules took 0.1s. 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 27.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 60 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 96 SDtfs, 361 SDslu, 539 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 148.0ms Time 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: 294]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23758} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=23767, NULL=0, NULL=23758, NULL=23774, NULL=0, NULL=0, NULL=23777, retValue_acc=0, NULL=23761, methaneLevelCritical=0, NULL=23781, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@351cc2f3=0, NULL=23778, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=23780, NULL=23772, cleanupTimeShifts=4, NULL=23783, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48e2886a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d63e8b5=70, NULL=23776, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@212273bd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e8cc92e=0, NULL=0, systemActive=1, waterLevel=1, NULL=23760, NULL=0, NULL=0, NULL=0, NULL=23787, NULL=0, NULL=23769, NULL=0, tmp___0=0, NULL=23763, NULL=0, NULL=23765, \result=1, head=0, pumpRunning=0, \result=0, NULL=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@585826d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@532646fb=0, retValue_acc=1, NULL=23785, NULL=23779, NULL=23766, NULL=0, NULL=0, NULL=23775, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@612f25da=0, tmp___2=70, tmp___0=0, NULL=23770, NULL=23759, splverifierCounter=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=23768, NULL=23784, tmp=0, NULL=23773, head=0, NULL=0, NULL=0, NULL=23762, NULL=0, NULL=0, NULL=23764, NULL=23782, NULL=0, NULL=23786, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L567] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L764] int cleanupTimeShifts = 4; [L862] int methAndRunningLastTime ; [L839] int retValue_acc ; [L840] int tmp ; [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); [L846] tmp = valid_product() [L848] COND TRUE \read(tmp) [L867] methAndRunningLastTime = 0 [L285] int splverifierCounter ; [L286] int tmp ; [L287] int tmp___0 ; [L288] int tmp___1 ; [L289] int tmp___2 ; [L292] splverifierCounter = 0 Loop: [L294] COND TRUE 1 [L296] COND TRUE splverifierCounter < 4 [L302] tmp = __VERIFIER_nondet_int() [L304] COND FALSE !(\read(tmp)) [L312] tmp___0 = __VERIFIER_nondet_int() [L314] COND FALSE !(\read(tmp___0)) [L322] tmp___2 = __VERIFIER_nondet_int() [L324] COND TRUE \read(tmp___2) [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L171] int tmp ; [L174] COND FALSE !(\read(pumpRunning)) [L872] int tmp ; [L873] int tmp___0 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L877] tmp = isMethaneLevelCritical() [L879] COND FALSE !(\read(tmp)) [L895] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:17:26,979 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...