./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product25.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_spec1_product25.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 510d78afd0ed540d6db513c55234784145c65178 ........................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:11:43,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:11:43,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:11:43,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:11:43,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:11:43,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:11:43,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:11:43,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:11:43,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:11:43,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:11:43,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:11:43,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:11:43,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:11:43,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:11:43,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:11:43,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:11:43,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:11:43,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:11:43,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:11:43,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:11:43,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:11:43,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:11:43,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:11:43,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:11:43,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:11:43,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:11:43,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:11:43,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:11:43,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:11:43,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:11:43,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:11:43,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:11:43,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:11:43,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:11:43,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:11:43,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:11:43,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:11:43,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:11:43,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:11:43,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:11:43,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:11:43,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:11:43,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:11:43,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:11:43,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:11:43,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:11:43,168 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:11:43,168 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:11:43,169 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:11:43,169 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:11:43,169 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:11:43,169 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:11:43,170 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:11:43,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:11:43,171 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:11:43,171 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:11:43,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:11:43,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:11:43,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:11:43,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:11:43,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:11:43,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:11:43,172 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:11:43,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:11:43,173 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:11:43,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:11:43,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:11:43,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:11:43,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:11:43,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:11:43,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:11:43,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:11:43,175 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:11:43,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 510d78afd0ed540d6db513c55234784145c65178 [2021-07-06 20:11:43,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:11:43,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:11:43,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:11:43,541 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:11:43,542 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:11:43,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product25.cil.c [2021-07-06 20:11:43,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f2cf4e9/caf4b4ebe76048f5a73d5053116e0aa6/FLAG038a6597f [2021-07-06 20:11:44,107 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:11:44,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product25.cil.c [2021-07-06 20:11:44,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f2cf4e9/caf4b4ebe76048f5a73d5053116e0aa6/FLAG038a6597f [2021-07-06 20:11:44,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f2cf4e9/caf4b4ebe76048f5a73d5053116e0aa6 [2021-07-06 20:11:44,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:11:44,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:11:44,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:11:44,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:11:44,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:11:44,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:44,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1051bae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44, skipping insertion in model container [2021-07-06 20:11:44,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:44,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:11:44,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:11:44,691 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_spec1_product25.cil.c[3600,3613] [2021-07-06 20:11:44,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:11:44,824 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:11:44,858 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_spec1_product25.cil.c[3600,3613] [2021-07-06 20:11:44,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:11:44,939 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:11:44,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44 WrapperNode [2021-07-06 20:11:44,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:11:44,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:11:44,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:11:44,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:11:44,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:44,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:45,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:11:45,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:11:45,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:11:45,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:11:45,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:45,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:45,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:45,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:45,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:45,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:45,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:45,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:11:45,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:11:45,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:11:45,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:11:45,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (1/1) ... [2021-07-06 20:11:45,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:11:45,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:11:45,108 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 20:11:45,129 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 20:11:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:11:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:11:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:11:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:11:45,822 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:11:45,823 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-07-06 20:11:45,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:11:45 BoogieIcfgContainer [2021-07-06 20:11:45,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:11:45,825 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:11:45,825 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:11:45,827 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:11:45,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:11:45,828 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:11:44" (1/3) ... [2021-07-06 20:11:45,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52195489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:11:45, skipping insertion in model container [2021-07-06 20:11:45,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:11:45,829 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:11:44" (2/3) ... [2021-07-06 20:11:45,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52195489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:11:45, skipping insertion in model container [2021-07-06 20:11:45,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:11:45,829 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:11:45" (3/3) ... [2021-07-06 20:11:45,830 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product25.cil.c [2021-07-06 20:11:45,870 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:11:45,870 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:11:45,870 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:11:45,870 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:11:45,870 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:11:45,870 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:11:45,871 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:11:45,871 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:11:45,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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 20:11:45,909 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:11:45,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:11:45,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:11:45,916 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:11:45,916 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:11:45,916 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:11:45,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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 20:11:45,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:11:45,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:11:45,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:11:45,930 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:11:45,930 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:11:45,938 INFO L791 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 17#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 72#L163true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 21#L171true main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 50#L535true assume 0 != main_~tmp~5; 37#L512true havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 28#L186-1true [2021-07-06 20:11:45,939 INFO L793 eck$LassoCheckResult]: Loop: 28#L186-1true assume !false; 46#L399true assume test_~splverifierCounter~0 < 4; 61#L400true test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 67#L408true assume !(0 != test_~tmp~4); 68#L408-1true test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 49#L418true assume !(0 != test_~tmp___0~2); 51#L418-1true test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 34#L428true assume 0 != test_~tmp___2~0; 73#L434-2true assume !(0 != ~pumpRunning~0); 55#L224true assume !(0 != ~systemActive~0); 35#L231true havoc __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_#t~ret19, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 33#L92true __utac_acc__Specification1_spec__1_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret18;havoc __utac_acc__Specification1_spec__1_#t~ret18; 4#L186true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 28#L186-1true [2021-07-06 20:11:45,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:45,943 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:11:45,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:45,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498121547] [2021-07-06 20:11:45,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:45,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,156 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,263 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,308 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:46,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:46,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1681683774, now seen corresponding path program 1 times [2021-07-06 20:11:46,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:46,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051131428] [2021-07-06 20:11:46,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:46,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,328 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,339 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,342 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:46,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:46,344 INFO L82 PathProgramCache]: Analyzing trace with hash 32595164, now seen corresponding path program 1 times [2021-07-06 20:11:46,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:46,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777163718] [2021-07-06 20:11:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:46,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:11:46,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:46,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:11:46,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:46,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:11:46,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:46,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:11:46,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:46,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:11:46,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:46,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:11:46,428 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 20:11:46,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:11:46,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777163718] [2021-07-06 20:11:46,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777163718] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:11:46,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:11:46,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:11:46,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792665687] [2021-07-06 20:11:46,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:46,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-07-06 20:11:46,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:11:46,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:11:46,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:11:46,548 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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 20:11:46,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:11:46,697 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2021-07-06 20:11:46,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 20:11:46,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2021-07-06 20:11:46,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-07-06 20:11:46,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2021-07-06 20:11:46,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2021-07-06 20:11:46,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2021-07-06 20:11:46,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2021-07-06 20:11:46,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:11:46,706 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-07-06 20:11:46,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2021-07-06 20:11:46,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-07-06 20:11:46,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 64 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 20:11:46,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2021-07-06 20:11:46,730 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-07-06 20:11:46,730 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-07-06 20:11:46,730 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:11:46,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2021-07-06 20:11:46,732 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-07-06 20:11:46,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:11:46,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:11:46,732 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:11:46,732 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:11:46,733 INFO L791 eck$LassoCheckResult]: Stem: 206#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(13);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(80, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(117, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(109, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(112, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(110, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 2 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(102, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 3 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(32, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 186#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 187#L163 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 188#L171 main_#t~ret44 := valid_product_#res;main_~tmp~5 := main_#t~ret44;havoc main_#t~ret44; 189#L535 assume 0 != main_~tmp~5; 203#L512 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 163#L186-1 [2021-07-06 20:11:46,733 INFO L793 eck$LassoCheckResult]: Loop: 163#L186-1 assume !false; 194#L399 assume test_~splverifierCounter~0 < 4; 214#L400 test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 223#L408 assume !(0 != test_~tmp~4); 225#L408-1 test_~tmp___0~2 := test_#t~nondet41;havoc test_#t~nondet41; 216#L418 assume !(0 != test_~tmp___0~2); 217#L418-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 200#L428 assume 0 != test_~tmp___2~0; 201#L434-2 assume !(0 != ~pumpRunning~0); 210#L224 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret20, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 207#L256 assume !(0 != ~pumpRunning~0); 199#L231 havoc __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_#t~ret19, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 198#L92 __utac_acc__Specification1_spec__1_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret18;havoc __utac_acc__Specification1_spec__1_#t~ret18; 162#L186 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 163#L186-1 [2021-07-06 20:11:46,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:46,734 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:11:46,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:46,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735172883] [2021-07-06 20:11:46,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:46,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,765 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,811 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,842 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:46,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:46,844 INFO L82 PathProgramCache]: Analyzing trace with hash -619582373, now seen corresponding path program 1 times [2021-07-06 20:11:46,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:46,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082019083] [2021-07-06 20:11:46,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:46,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,850 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,854 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,859 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:46,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:11:46,860 INFO L82 PathProgramCache]: Analyzing trace with hash 983457153, now seen corresponding path program 1 times [2021-07-06 20:11:46,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:11:46,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037450508] [2021-07-06 20:11:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:11:46,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:11:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,910 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:11:46,942 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:11:46,952 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:11:46,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:11:46,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:12:29,188 WARN L205 SmtUtils]: Spent 42.18 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:12:29,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:12:29,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:12:50,926 WARN L205 SmtUtils]: Spent 21.66 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:12:51,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:12:51 BoogieIcfgContainer [2021-07-06 20:12:51,046 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:12:51,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:12:51,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:12:51,047 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:12:51,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:11:45" (3/4) ... [2021-07-06 20:12:51,049 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:12:51,092 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:12:51,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:12:51,100 INFO L168 Benchmark]: Toolchain (without parser) took 66665.10 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 34.2 MB in the beginning and 27.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:51,100 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory is still 38.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:12:51,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.86 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 30.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:51,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.12 ms. Allocated memory is still 56.6 MB. Free memory was 30.7 MB in the beginning and 28.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:51,102 INFO L168 Benchmark]: Boogie Preprocessor took 58.19 ms. Allocated memory is still 56.6 MB. Free memory was 28.0 MB in the beginning and 26.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:51,102 INFO L168 Benchmark]: RCFGBuilder took 742.04 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 25.8 MB in the beginning and 45.9 MB in the end (delta: -20.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:51,103 INFO L168 Benchmark]: BuchiAutomizer took 65221.62 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 45.8 MB in the beginning and 29.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:51,103 INFO L168 Benchmark]: Witness Printer took 52.28 ms. Allocated memory is still 86.0 MB. Free memory was 29.7 MB in the beginning and 27.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:12:51,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory is still 38.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 503.86 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 30.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.12 ms. Allocated memory is still 56.6 MB. Free memory was 30.7 MB in the beginning and 28.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.19 ms. Allocated memory is still 56.6 MB. Free memory was 28.0 MB in the beginning and 26.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 742.04 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 25.8 MB in the beginning and 45.9 MB in the end (delta: -20.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 65221.62 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 45.8 MB in the beginning and 29.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. * Witness Printer took 52.28 ms. Allocated memory is still 86.0 MB. Free memory was 29.7 MB in the beginning and 27.6 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 6 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 65.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 64.8s. Construction of modules took 0.1s. 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 13.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 283 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 104.3ms 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: 398]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=17224} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b7fa6f8=0, NULL=0, retValue_acc=0, NULL=0, NULL=17234, NULL=0, NULL=17224, NULL=17231, NULL=17248, retValue_acc=0, NULL=17250, NULL=17249, NULL=17230, methaneLevelCritical=0, NULL=17236, NULL=0, tmp=0, NULL=0, NULL=0, NULL=17252, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60f5d6ce=0, tmp___0=0, NULL=17233, NULL=17228, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c77197e=0, cleanupTimeShifts=4, NULL=17227, NULL=17242, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38bc2022=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10ecf701=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@530dd60=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d36ca5a=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=17241, NULL=0, NULL=17247, \result=1, head=0, pumpRunning=0, \result=0, NULL=17251, NULL=0, NULL=17229, NULL=0, NULL=0, tmp=1, tmp=0, retValue_acc=1, NULL=17244, NULL=0, NULL=0, NULL=17245, NULL=0, NULL=0, NULL=17238, NULL=0, tmp___2=60, NULL=0, tmp___0=0, NULL=17226, NULL=17240, splverifierCounter=0, NULL=0, \result=0, NULL=17232, NULL=17237, NULL=17246, tmp=0, head=0, NULL=0, NULL=0, NULL=17243, NULL=0, NULL=17235, NULL=17225, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9082126=0, NULL=17239} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L217] int pumpRunning = 0; [L218] int systemActive = 1; [L453] int cleanupTimeShifts = 4; [L718] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L526] int retValue_acc ; [L527] int tmp ; [L167] int retValue_acc ; [L170] retValue_acc = 1 [L171] return (retValue_acc); [L533] tmp = valid_product() [L535] COND TRUE \read(tmp) [L389] int splverifierCounter ; [L390] int tmp ; [L391] int tmp___0 ; [L392] int tmp___1 ; [L393] int tmp___2 ; [L396] splverifierCounter = 0 Loop: [L398] COND TRUE 1 [L400] COND TRUE splverifierCounter < 4 [L406] tmp = __VERIFIER_nondet_int() [L408] COND FALSE !(\read(tmp)) [L416] tmp___0 = __VERIFIER_nondet_int() [L418] COND FALSE !(\read(tmp___0)) [L426] tmp___2 = __VERIFIER_nondet_int() [L428] COND TRUE \read(tmp___2) [L224] COND FALSE !(\read(pumpRunning)) [L231] COND TRUE \read(systemActive) [L253] int tmp ; [L256] COND FALSE !(\read(pumpRunning)) [L179] int tmp ; [L180] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L184] tmp = isMethaneLevelCritical() [L186] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:12:51,179 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...