./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product10.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_spec3_product10.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 5afec15b24012ce62630e94cc787fef1371f4427 ............................................................................................................................................................................................................................................................................................................................................................................................................ 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 20:22:25,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:22:25,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:22:25,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:22:25,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:22:25,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:22:25,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:22:25,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:22:25,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:22:25,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:22:25,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:22:25,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:22:25,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:22:25,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:22:25,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:22:25,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:22:25,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:22:25,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:22:25,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:22:25,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:22:25,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:22:25,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:22:25,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:22:25,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:22:25,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:22:25,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:22:25,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:22:25,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:22:25,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:22:25,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:22:25,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:22:25,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:22:25,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:22:25,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:22:25,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:22:25,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:22:25,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:22:25,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:22:25,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:22:25,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:22:25,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:22:25,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:22:25,429 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:22:25,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:22:25,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:22:25,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:22:25,432 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:22:25,432 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:22:25,432 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:22:25,432 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:22:25,433 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:22:25,433 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:22:25,434 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:22:25,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:22:25,434 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:22:25,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:22:25,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:22:25,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:22:25,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:22:25,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:22:25,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:22:25,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:22:25,435 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:22:25,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:22:25,436 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:22:25,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:22:25,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:22:25,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:22:25,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:22:25,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:22:25,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:22:25,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:22:25,438 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:22:25,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5afec15b24012ce62630e94cc787fef1371f4427 [2021-07-06 20:22:25,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:22:25,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:22:25,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:22:25,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:22:25,789 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:22:25,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c [2021-07-06 20:22:25,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591395be6/8f19ee5bb5fb44d589445c891d1fe281/FLAG77585009e [2021-07-06 20:22:26,339 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:22:26,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c [2021-07-06 20:22:26,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591395be6/8f19ee5bb5fb44d589445c891d1fe281/FLAG77585009e [2021-07-06 20:22:26,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/591395be6/8f19ee5bb5fb44d589445c891d1fe281 [2021-07-06 20:22:26,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:22:26,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:22:26,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:22:26,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:22:26,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:22:26,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:22:26" (1/1) ... [2021-07-06 20:22:26,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@287a04fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:26, skipping insertion in model container [2021-07-06 20:22:26,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:22:26" (1/1) ... [2021-07-06 20:22:26,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:22:26,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:22:26,915 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_spec3_product10.cil.c[3019,3032] [2021-07-06 20:22:27,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:22:27,053 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:22:27,085 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_spec3_product10.cil.c[3019,3032] [2021-07-06 20:22:27,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:22:27,164 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:22:27,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27 WrapperNode [2021-07-06 20:22:27,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:22:27,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:22:27,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:22:27,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:22:27,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:22:27,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:22:27,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:22:27,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:22:27,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:22:27,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:22:27,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:22:27,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:22:27,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (1/1) ... [2021-07-06 20:22:27,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:22:27,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:22:27,325 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 20:22:27,336 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 20:22:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:22:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:22:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:22:27,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:22:27,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:22:27,920 INFO L299 CfgBuilder]: Removed 74 assume(true) statements. [2021-07-06 20:22:27,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:22:27 BoogieIcfgContainer [2021-07-06 20:22:27,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:22:27,923 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:22:27,923 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:22:27,926 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:22:27,926 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:22:27,927 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:22:26" (1/3) ... [2021-07-06 20:22:27,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67d6f67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:22:27, skipping insertion in model container [2021-07-06 20:22:27,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:22:27,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:22:27" (2/3) ... [2021-07-06 20:22:27,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67d6f67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:22:27, skipping insertion in model container [2021-07-06 20:22:27,929 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:22:27,929 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:22:27" (3/3) ... [2021-07-06 20:22:27,930 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2021-07-06 20:22:27,973 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:22:27,973 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:22:27,973 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:22:27,973 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:22:27,973 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:22:27,973 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:22:27,974 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:22:27,974 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:22:27,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 states have internal predecessors, (90), 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 20:22:28,010 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2021-07-06 20:22:28,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:22:28,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:22:28,017 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:22:28,017 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:22:28,017 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:22:28,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 states have internal predecessors, (90), 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 20:22:28,027 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2021-07-06 20:22:28,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:22:28,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:22:28,028 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:22:28,028 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:22:28,031 INFO L791 eck$LassoCheckResult]: Stem: 29#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 8#L-1true havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 53#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 60#L75true main_#t~ret78 := valid_product_#res;main_~tmp~6 := main_#t~ret78;havoc main_#t~ret78; 56#L865true assume 0 != main_~tmp~6; 45#L842true havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 15#L764-1true [2021-07-06 20:22:28,032 INFO L793 eck$LassoCheckResult]: Loop: 15#L764-1true assume !false; 7#L555true assume test_~splverifierCounter~0 < 4; 21#L556true test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 24#L564true assume !(0 != test_~tmp~3); 30#L564-1true test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 9#L574true assume !(0 != test_~tmp___0~0); 11#L574-1true test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 61#L584true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 4#L592-2true assume !(0 != ~pumpRunning~0); 55#L623true assume 0 != ~systemActive~0; 40#L630true havoc __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 49#L129true __utac_acc__Specification3_spec__1_#t~ret75 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret75;havoc __utac_acc__Specification3_spec__1_#t~ret75; 41#L758true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 15#L764-1true [2021-07-06 20:22:28,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:22:28,037 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:22:28,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:22:28,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172295101] [2021-07-06 20:22:28,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:22:28,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:22:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:28,296 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:28,384 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:28,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:22:28,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:22:28,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1681619239, now seen corresponding path program 1 times [2021-07-06 20:22:28,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:22:28,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619908770] [2021-07-06 20:22:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:22:28,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:22:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:28,436 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:28,457 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:28,461 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:22:28,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:22:28,464 INFO L82 PathProgramCache]: Analyzing trace with hash 32659699, now seen corresponding path program 1 times [2021-07-06 20:22:28,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:22:28,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822412888] [2021-07-06 20:22:28,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:22:28,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:22:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:22:28,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:22:28,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:22:28,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:22:28,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:22:28,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:22:28,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:22:28,619 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 20:22:28,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:22:28,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822412888] [2021-07-06 20:22:28,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822412888] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:22:28,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:22:28,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:22:28,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486896590] [2021-07-06 20:22:28,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:22:28,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:22:28,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:22:28,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 20:22:28,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-06 20:22:28,772 INFO L87 Difference]: Start difference. First operand has 60 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 59 states have internal predecessors, (90), 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 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 20:22:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:22:28,946 INFO L93 Difference]: Finished difference Result 185 states and 263 transitions. [2021-07-06 20:22:28,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-06 20:22:28,950 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 185 states and 263 transitions. [2021-07-06 20:22:28,959 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-07-06 20:22:28,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 185 states to 163 states and 241 transitions. [2021-07-06 20:22:28,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 163 [2021-07-06 20:22:28,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 163 [2021-07-06 20:22:28,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 163 states and 241 transitions. [2021-07-06 20:22:28,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:22:28,972 INFO L681 BuchiCegarLoop]: Abstraction has 163 states and 241 transitions. [2021-07-06 20:22:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states and 241 transitions. [2021-07-06 20:22:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 100. [2021-07-06 20:22:28,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.4) internal successors, (140), 99 states have internal predecessors, (140), 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 20:22:28,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 140 transitions. [2021-07-06 20:22:29,000 INFO L704 BuchiCegarLoop]: Abstraction has 100 states and 140 transitions. [2021-07-06 20:22:29,000 INFO L587 BuchiCegarLoop]: Abstraction has 100 states and 140 transitions. [2021-07-06 20:22:29,000 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:22:29,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 140 transitions. [2021-07-06 20:22:29,002 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 70 [2021-07-06 20:22:29,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:22:29,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:22:29,002 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:22:29,002 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:22:29,003 INFO L791 eck$LassoCheckResult]: Stem: 304#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 277#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 278#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 332#L75 main_#t~ret78 := valid_product_#res;main_~tmp~6 := main_#t~ret78;havoc main_#t~ret78; 333#L865 assume 0 != main_~tmp~6; 322#L842 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 323#L764-1 [2021-07-06 20:22:29,003 INFO L793 eck$LassoCheckResult]: Loop: 323#L764-1 assume !false; 343#L555 assume test_~splverifierCounter~0 < 4; 292#L556 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 293#L564 assume !(0 != test_~tmp~3); 299#L564-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 279#L574 assume !(0 != test_~tmp___0~0); 280#L574-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 283#L584 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 268#L592-2 assume !(0 != ~pumpRunning~0); 269#L623 assume 0 != ~systemActive~0; 318#L630 havoc __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 319#L129 __utac_acc__Specification3_spec__1_#t~ret75 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret75;havoc __utac_acc__Specification3_spec__1_#t~ret75; 320#L758 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 309#L161 __utac_acc__Specification3_spec__1_#t~ret76 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 310#L764 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 323#L764-1 [2021-07-06 20:22:29,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:22:29,003 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:22:29,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:22:29,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799124690] [2021-07-06 20:22:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:22:29,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:22:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:29,033 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:29,060 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:29,077 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:22:29,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:22:29,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1128380277, now seen corresponding path program 1 times [2021-07-06 20:22:29,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:22:29,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482827374] [2021-07-06 20:22:29,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:22:29,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:22:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:29,082 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:29,085 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:29,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:22:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:22:29,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1321204773, now seen corresponding path program 1 times [2021-07-06 20:22:29,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:22:29,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674496697] [2021-07-06 20:22:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:22:29,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:22:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:29,115 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:22:29,144 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:22:29,154 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:22:29,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:22:29,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-06 20:23:08,839 WARN L205 SmtUtils]: Spent 39.56 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:23:08,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:23:08,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:23:29,369 WARN L205 SmtUtils]: Spent 20.46 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:23:29,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:23:29 BoogieIcfgContainer [2021-07-06 20:23:29,473 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:23:29,474 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:23:29,474 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:23:29,474 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:23:29,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:22:27" (3/4) ... [2021-07-06 20:23:29,477 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:23:29,532 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:23:29,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:23:29,533 INFO L168 Benchmark]: Toolchain (without parser) took 62881.90 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 28.7 MB in the beginning and 54.3 MB in the end (delta: -25.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-07-06 20:23:29,534 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:23:29,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.40 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.5 MB in the beginning and 36.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:23:29,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.33 ms. Allocated memory is still 62.9 MB. Free memory was 36.7 MB in the beginning and 34.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:23:29,535 INFO L168 Benchmark]: Boogie Preprocessor took 53.81 ms. Allocated memory is still 62.9 MB. Free memory was 34.0 MB in the beginning and 32.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:23:29,535 INFO L168 Benchmark]: RCFGBuilder took 626.76 ms. Allocated memory is still 62.9 MB. Free memory was 32.1 MB in the beginning and 37.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:23:29,536 INFO L168 Benchmark]: BuchiAutomizer took 61550.49 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 37.3 MB in the beginning and 56.4 MB in the end (delta: -19.0 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:23:29,536 INFO L168 Benchmark]: Witness Printer took 58.41 ms. Allocated memory is still 92.3 MB. Free memory was 56.4 MB in the beginning and 54.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:23:29,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 512.40 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.5 MB in the beginning and 36.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.33 ms. Allocated memory is still 62.9 MB. Free memory was 36.7 MB in the beginning and 34.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.81 ms. Allocated memory is still 62.9 MB. Free memory was 34.0 MB in the beginning and 32.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 626.76 ms. Allocated memory is still 62.9 MB. Free memory was 32.1 MB in the beginning and 37.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 61550.49 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 37.3 MB in the beginning and 56.4 MB in the end (delta: -19.0 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. * Witness Printer took 58.41 ms. Allocated memory is still 92.3 MB. Free memory was 56.4 MB in the beginning and 54.3 MB in the end (delta: 2.1 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 5 locations. The remainder module has 100 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 61.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 61.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 17.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 63 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 100 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 106 SDtfs, 280 SDslu, 300 SDs, 0 SdLazy, 43 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 91.7ms 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: 554]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12495} State at position 1 is {NULL=12508, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=12495, NULL=12511, NULL=0, NULL=0, NULL=0, NULL=0, NULL=12505, retValue_acc=0, NULL=12513, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32fbbef0=0, NULL=12518, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49885c3a=0, NULL=12501, methaneLevelCritical=0, NULL=12507, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b99f9dd=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d331c91=0, NULL=12523, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20309408=0, NULL=0, NULL=12506, tmp___1=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c17bb85=0, NULL=12517, NULL=12510, cleanupTimeShifts=4, tmp=0, NULL=12497, NULL=12504, NULL=12509, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=12498, tmp___0=0, NULL=0, NULL=12496, retValue_acc=1, NULL=12522, \result=1, head=0, pumpRunning=0, NULL=12499, \result=0, NULL=12503, NULL=0, NULL=12502, NULL=0, NULL=0, tmp=1, NULL=0, NULL=12521, NULL=0, NULL=0, NULL=12514, retValue_acc=1, tmp___2=86, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=12515, NULL=12516, NULL=12512, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@419ff944=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78a7daca=86, tmp___1=0, head=0, NULL=0, NULL=0, NULL=12520, NULL=0, NULL=0, NULL=12500, NULL=12519, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L783] int cleanupTimeShifts = 4; [L856] int retValue_acc ; [L857] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 Loop: [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND FALSE !(\read(tmp)) [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND TRUE \read(tmp___2) [L744] systemActive = 1 [L623] COND FALSE !(\read(pumpRunning)) [L630] COND TRUE \read(systemActive) [L750] int tmp ; [L751] int tmp___0 ; [L752] int tmp___1 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L756] tmp = isMethaneLevelCritical() [L758] COND FALSE !(\read(tmp)) [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L762] tmp___0 = getWaterLevel() [L764] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:23:29,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...