./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product20.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_product20.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 3df8d35662b819e3a4d212ebbe7a52d191ed1c2f .............................................................................................................................................................................................................................................................................................................................................................................................. 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 20:17:29,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:17:29,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:17:29,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:17:29,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:17:29,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:17:29,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:17:29,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:17:29,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:17:29,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:17:29,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:17:29,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:17:29,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:17:29,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:17:29,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:17:29,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:17:29,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:17:29,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:17:29,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:17:29,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:17:29,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:17:29,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:17:29,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:17:29,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:17:29,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:17:29,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:17:29,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:17:29,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:17:29,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:17:29,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:17:29,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:17:29,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:17:29,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:17:29,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:17:29,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:17:29,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:17:29,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:17:29,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:17:29,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:17:29,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:17:29,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:17:29,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:17:29,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:17:29,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:17:29,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:17:29,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:17:29,364 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:17:29,364 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:17:29,364 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:17:29,364 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:17:29,365 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:17:29,365 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:17:29,365 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:17:29,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:17:29,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:17:29,366 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:17:29,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:17:29,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:17:29,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:17:29,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:17:29,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:17:29,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:17:29,367 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:17:29,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:17:29,367 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:17:29,367 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:17:29,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:17:29,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:17:29,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:17:29,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:17:29,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:17:29,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:17:29,369 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:17:29,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df8d35662b819e3a4d212ebbe7a52d191ed1c2f [2021-07-06 20:17:29,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:17:29,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:17:29,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:17:29,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:17:29,613 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:17:29,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2021-07-06 20:17:29,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67196e55c/173f57f985834da68249bec29a2bbf8b/FLAG3ac792b97 [2021-07-06 20:17:30,010 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:17:30,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2021-07-06 20:17:30,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67196e55c/173f57f985834da68249bec29a2bbf8b/FLAG3ac792b97 [2021-07-06 20:17:30,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67196e55c/173f57f985834da68249bec29a2bbf8b [2021-07-06 20:17:30,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:17:30,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:17:30,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:17:30,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:17:30,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:17:30,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525bb5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30, skipping insertion in model container [2021-07-06 20:17:30,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:17:30,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:17:30,700 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_product20.cil.c[14789,14802] [2021-07-06 20:17:30,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:17:30,716 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:17:30,747 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_product20.cil.c[14789,14802] [2021-07-06 20:17:30,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:17:30,773 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:17:30,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30 WrapperNode [2021-07-06 20:17:30,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:17:30,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:17:30,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:17:30,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:17:30,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:17:30,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:17:30,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:17:30,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:17:30,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:17:30,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:17:30,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:17:30,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:17:30,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (1/1) ... [2021-07-06 20:17:30,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:17:30,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:17:30,914 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 20:17:30,942 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 20:17:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:17:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:17:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:17:30,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:17:31,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:17:31,436 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2021-07-06 20:17:31,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:17:31 BoogieIcfgContainer [2021-07-06 20:17:31,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:17:31,438 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:17:31,438 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:17:31,440 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:17:31,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:17:31,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:17:30" (1/3) ... [2021-07-06 20:17:31,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31129de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:17:31, skipping insertion in model container [2021-07-06 20:17:31,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:17:31,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:17:30" (2/3) ... [2021-07-06 20:17:31,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31129de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:17:31, skipping insertion in model container [2021-07-06 20:17:31,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:17:31,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:17:31" (3/3) ... [2021-07-06 20:17:31,442 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2021-07-06 20:17:31,467 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:17:31,467 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:17:31,468 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:17:31,468 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:17:31,468 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:17:31,468 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:17:31,469 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:17:31,469 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:17:31,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 77 states have internal predecessors, (118), 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 20:17:31,496 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-07-06 20:17:31,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:17:31,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:17:31,501 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:31,501 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:31,501 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:17:31,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 77 states have internal predecessors, (118), 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 20:17:31,504 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-07-06 20:17:31,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:17:31,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:17:31,505 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:31,505 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:31,508 INFO L791 eck$LassoCheckResult]: Stem: 50#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);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~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 23#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 32#L109true 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; 49#L117true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 3#L303true assume 0 != main_~tmp~1; 52#L278true ~methAndRunningLastTime~0 := 0; 17#L51true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 16#L62-1true [2021-07-06 20:17:31,508 INFO L793 eck$LassoCheckResult]: Loop: 16#L62-1true assume !false; 13#L705true assume test_~splverifierCounter~0 < 4; 42#L706true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 60#L714true assume !(0 != test_~tmp~5); 48#L714-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 24#L724true assume !(0 != test_~tmp___0~1); 27#L724-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 74#L734true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 37#L742-1true assume !(0 != ~pumpRunning~0); 40#L772true assume !(0 != ~systemActive~0); 45#L779true havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;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; 28#L171true __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 19#L62true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 16#L62-1true [2021-07-06 20:17:31,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:31,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-07-06 20:17:31,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:31,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105783245] [2021-07-06 20:17:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:31,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:31,706 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:31,774 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:31,808 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:31,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:31,814 INFO L82 PathProgramCache]: Analyzing trace with hash 12142292, now seen corresponding path program 1 times [2021-07-06 20:17:31,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:31,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200052754] [2021-07-06 20:17:31,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:31,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:17:31,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:31,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:17:31,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:31,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:17:31,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:31,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:17:31,859 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 20:17:31,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:17:31,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200052754] [2021-07-06 20:17:31,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200052754] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:17:31,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:17:31,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:17:31,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492550411] [2021-07-06 20:17:31,864 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 20:17:31,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:17:31,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 20:17:31,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 20:17:31,877 INFO L87 Difference]: Start difference. First operand has 78 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 77 states have internal predecessors, (118), 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 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 20:17:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:17:31,921 INFO L93 Difference]: Finished difference Result 149 states and 211 transitions. [2021-07-06 20:17:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 20:17:31,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 211 transitions. [2021-07-06 20:17:31,927 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-07-06 20:17:31,931 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 135 states and 196 transitions. [2021-07-06 20:17:31,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2021-07-06 20:17:31,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2021-07-06 20:17:31,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 196 transitions. [2021-07-06 20:17:31,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:17:31,933 INFO L681 BuchiCegarLoop]: Abstraction has 135 states and 196 transitions. [2021-07-06 20:17:31,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 196 transitions. [2021-07-06 20:17:31,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2021-07-06 20:17:31,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 133 states have (on average 1.4511278195488722) internal successors, (193), 132 states have internal predecessors, (193), 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 20:17:31,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 193 transitions. [2021-07-06 20:17:31,962 INFO L704 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2021-07-06 20:17:31,962 INFO L587 BuchiCegarLoop]: Abstraction has 133 states and 193 transitions. [2021-07-06 20:17:31,962 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:17:31,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states and 193 transitions. [2021-07-06 20:17:31,964 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2021-07-06 20:17:31,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:17:31,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:17:31,965 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:31,965 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:17:31,965 INFO L791 eck$LassoCheckResult]: Stem: 299#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);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~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 274#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~5, main_~tmp~1;havoc main_~retValue_acc~5;havoc main_~tmp~1; 275#L109 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; 285#L117 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 236#L303 assume 0 != main_~tmp~1; 237#L278 ~methAndRunningLastTime~0 := 0; 263#L51 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 262#L62-1 [2021-07-06 20:17:31,966 INFO L793 eck$LassoCheckResult]: Loop: 262#L62-1 assume !false; 256#L705 assume test_~splverifierCounter~0 < 4; 257#L706 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 297#L714 assume !(0 != test_~tmp~5); 260#L714-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 276#L724 assume !(0 != test_~tmp___0~1); 278#L724-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 281#L734 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 288#L742-1 assume !(0 != ~pumpRunning~0); 293#L772 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 238#L804 assume !(0 != ~pumpRunning~0); 240#L779 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;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; 282#L171 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 266#L62 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 262#L62-1 [2021-07-06 20:17:31,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:31,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-07-06 20:17:31,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:31,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498109232] [2021-07-06 20:17:31,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:31,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:31,995 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:32,019 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:32,027 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:32,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:32,028 INFO L82 PathProgramCache]: Analyzing trace with hash 349417953, now seen corresponding path program 1 times [2021-07-06 20:17:32,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:32,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18046930] [2021-07-06 20:17:32,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:32,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:32,032 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:32,034 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:32,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:32,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:17:32,037 INFO L82 PathProgramCache]: Analyzing trace with hash 411805863, now seen corresponding path program 1 times [2021-07-06 20:17:32,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:17:32,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011204659] [2021-07-06 20:17:32,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:17:32,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:17:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:32,075 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:17:32,093 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:17:32,102 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:17:32,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:17:32,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-06 20:18:11,483 WARN L205 SmtUtils]: Spent 39.30 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-07-06 20:18:11,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:18:11,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2130 [2021-07-06 20:18:31,372 WARN L205 SmtUtils]: Spent 19.80 s on a formula simplification that was a NOOP. DAG size: 435 [2021-07-06 20:18:31,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:18:31 BoogieIcfgContainer [2021-07-06 20:18:31,505 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:18:31,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:18:31,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:18:31,505 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:18:31,506 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:17:31" (3/4) ... [2021-07-06 20:18:31,507 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:18:31,541 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:18:31,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:18:31,551 INFO L168 Benchmark]: Toolchain (without parser) took 61130.96 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 31.1 MB in the beginning and 51.4 MB in the end (delta: -20.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:31,552 INFO L168 Benchmark]: CDTParser took 1.17 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:18:31,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.73 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 30.9 MB in the beginning and 41.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:31,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.98 ms. Allocated memory is still 69.2 MB. Free memory was 41.7 MB in the beginning and 38.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:31,554 INFO L168 Benchmark]: Boogie Preprocessor took 53.30 ms. Allocated memory is still 69.2 MB. Free memory was 38.8 MB in the beginning and 51.2 MB in the end (delta: -12.4 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:31,555 INFO L168 Benchmark]: RCFGBuilder took 550.36 ms. Allocated memory is still 69.2 MB. Free memory was 51.2 MB in the beginning and 39.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:31,569 INFO L168 Benchmark]: BuchiAutomizer took 60066.71 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 39.9 MB in the beginning and 53.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:31,569 INFO L168 Benchmark]: Witness Printer took 45.65 ms. Allocated memory is still 83.9 MB. Free memory was 53.8 MB in the beginning and 51.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:18:31,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 351.73 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 30.9 MB in the beginning and 41.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.98 ms. Allocated memory is still 69.2 MB. Free memory was 41.7 MB in the beginning and 38.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.30 ms. Allocated memory is still 69.2 MB. Free memory was 38.8 MB in the beginning and 51.2 MB in the end (delta: -12.4 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 550.36 ms. Allocated memory is still 69.2 MB. Free memory was 51.2 MB in the beginning and 39.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 60066.71 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 39.9 MB in the beginning and 53.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. * Witness Printer took 45.65 ms. Allocated memory is still 83.9 MB. Free memory was 53.8 MB in the beginning and 51.4 MB in the end (delta: 2.4 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 3 locations. The remainder module has 133 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 60.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 59.8s. 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 19.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 133 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 108 SDtfs, 104 SDslu, 95 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.7ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 704]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13349} State at position 1 is {NULL=13357, NULL=0, NULL=0, NULL=13349, NULL=0, NULL=13370, NULL=0, NULL=0, retValue_acc=0, NULL=13373, NULL=0, NULL=0, NULL=13368, NULL=13353, methaneLevelCritical=0, NULL=0, NULL=0, tmp=0, NULL=13375, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=13350, cleanupTimeShifts=4, NULL=13360, NULL=13372, NULL=13374, NULL=13355, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c45ddde=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ebf9647=0, NULL=0, systemActive=1, waterLevel=1, NULL=13366, NULL=0, retValue_acc=0, NULL=13365, NULL=0, NULL=0, NULL=0, NULL=13358, \result=1, head=0, pumpRunning=0, NULL=13351, \result=0, NULL=13376, NULL=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=13359, tmp___0=0, NULL=13364, NULL=0, NULL=0, NULL=13369, NULL=0, NULL=13356, retValue_acc=1, tmp___2=69, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=13367, NULL=13377, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27f06e02=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bfea1a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1956ba27=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b5612ad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12a2a590=0, head=0, NULL=13362, tmp=0, NULL=0, tmp=0, NULL=13361, NULL=13354, NULL=0, NULL=0, NULL=13363, NULL=0, NULL=13371, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@135cbea=0, NULL=13352} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L45] int methAndRunningLastTime ; [L128] int waterLevel = 1; [L129] int methaneLevelCritical = 0; [L217] int cleanupTimeShifts = 4; [L486] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int pumpRunning = 0; [L766] int systemActive = 1; [L294] int retValue_acc ; [L295] int tmp ; [L113] int retValue_acc ; [L116] retValue_acc = 1 [L117] return (retValue_acc); [L301] tmp = valid_product() [L303] COND TRUE \read(tmp) [L50] methAndRunningLastTime = 0 [L695] int splverifierCounter ; [L696] int tmp ; [L697] int tmp___0 ; [L698] int tmp___1 ; [L699] int tmp___2 ; [L702] splverifierCounter = 0 Loop: [L704] COND TRUE 1 [L706] COND TRUE splverifierCounter < 4 [L712] tmp = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp)) [L722] tmp___0 = __VERIFIER_nondet_int() [L724] COND FALSE !(\read(tmp___0)) [L732] tmp___2 = __VERIFIER_nondet_int() [L734] COND TRUE \read(tmp___2) [L935] systemActive = 1 [L772] COND FALSE !(\read(pumpRunning)) [L779] COND TRUE \read(systemActive) [L801] int tmp ; [L804] COND FALSE !(\read(pumpRunning)) [L55] int tmp ; [L56] int tmp___0 ; [L167] int retValue_acc ; [L170] retValue_acc = methaneLevelCritical [L171] return (retValue_acc); [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:18:31,624 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...