./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product10_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product10_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer --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 e860f9a133bb6d76e1501dcd276032def5c8511b ............................................................................................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-09 15:16:11,956 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:16:11,957 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:16:11,965 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:16:11,966 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:16:11,966 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:16:11,967 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:16:11,968 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:16:11,970 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:16:11,970 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:16:11,971 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:16:11,971 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:16:11,972 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:16:11,972 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:16:11,973 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:16:11,974 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:16:11,974 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:16:11,976 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:16:11,977 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:16:11,978 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:16:11,979 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:16:11,980 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:16:11,981 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:16:11,981 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:16:11,982 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:16:11,982 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:16:11,983 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:16:11,983 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:16:11,984 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:16:11,985 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:16:11,985 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:16:11,985 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:16:11,985 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:16:11,986 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:16:11,986 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:16:11,987 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:16:11,987 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-09 15:16:11,998 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:16:11,998 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:16:11,999 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 15:16:11,999 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 15:16:11,999 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 15:16:11,999 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 15:16:11,999 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 15:16:11,999 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 15:16:12,000 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 15:16:12,000 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 15:16:12,000 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 15:16:12,000 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:16:12,000 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:16:12,000 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 15:16:12,000 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:16:12,000 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:16:12,001 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:16:12,001 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 15:16:12,001 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 15:16:12,001 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 15:16:12,001 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:16:12,001 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:16:12,001 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 15:16:12,001 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 15:16:12,002 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 15:16:12,002 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:16:12,002 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:16:12,002 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 15:16:12,002 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:16:12,002 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 15:16:12,002 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 15:16:12,003 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 15:16:12,003 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer 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 -> e860f9a133bb6d76e1501dcd276032def5c8511b [2018-12-09 15:16:12,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:16:12,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:16:12,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:16:12,033 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:16:12,033 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:16:12,034 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product10_true-unreach-call_false-termination.cil.c [2018-12-09 15:16:12,070 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/data/8e4163f21/1ed1174063764a038048e9d9f4d45c56/FLAG3869aee2e [2018-12-09 15:16:12,441 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:16:12,441 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/sv-benchmarks/c/product-lines/minepump_spec1_product10_true-unreach-call_false-termination.cil.c [2018-12-09 15:16:12,447 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/data/8e4163f21/1ed1174063764a038048e9d9f4d45c56/FLAG3869aee2e [2018-12-09 15:16:12,455 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/data/8e4163f21/1ed1174063764a038048e9d9f4d45c56 [2018-12-09 15:16:12,456 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:16:12,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:16:12,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:16:12,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:16:12,460 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:16:12,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c0e1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12, skipping insertion in model container [2018-12-09 15:16:12,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:16:12,485 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:16:12,623 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:16:12,664 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:16:12,712 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:16:12,726 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:16:12,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12 WrapperNode [2018-12-09 15:16:12,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:16:12,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:16:12,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:16:12,727 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:16:12,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:16:12,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:16:12,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:16:12,760 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:16:12,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... [2018-12-09 15:16:12,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:16:12,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:16:12,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:16:12,777 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:16:12,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:16:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:16:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 15:16:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:16:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:16:13,086 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:16:13,086 INFO L280 CfgBuilder]: Removed 68 assue(true) statements. [2018-12-09 15:16:13,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:16:13 BoogieIcfgContainer [2018-12-09 15:16:13,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:16:13,087 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 15:16:13,087 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 15:16:13,089 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 15:16:13,089 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 15:16:13,090 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 03:16:12" (1/3) ... [2018-12-09 15:16:13,090 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4064a2f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 03:16:13, skipping insertion in model container [2018-12-09 15:16:13,090 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 15:16:13,090 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:16:12" (2/3) ... [2018-12-09 15:16:13,091 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4064a2f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 03:16:13, skipping insertion in model container [2018-12-09 15:16:13,091 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 15:16:13,091 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:16:13" (3/3) ... [2018-12-09 15:16:13,092 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product10_true-unreach-call_false-termination.cil.c [2018-12-09 15:16:13,122 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 15:16:13,123 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 15:16:13,123 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 15:16:13,123 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 15:16:13,123 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:16:13,123 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:16:13,123 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 15:16:13,123 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:16:13,123 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 15:16:13,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states. [2018-12-09 15:16:13,146 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2018-12-09 15:16:13,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:16:13,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:16:13,151 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 15:16:13,151 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:16:13,151 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 15:16:13,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states. [2018-12-09 15:16:13,153 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2018-12-09 15:16:13,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:16:13,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:16:13,153 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 15:16:13,153 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:16:13,156 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #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.alloc(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1); 7#L-1true havoc main_#res;havoc main_#t~ret14, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 16#L856true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 36#L864true main_#t~ret14 := valid_product_#res;main_~tmp~1 := main_#t~ret14;havoc main_#t~ret14; 55#L291true assume 0 != main_~tmp~1; 37#L265true havoc test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 35#L816-1true [2018-12-09 15:16:13,157 INFO L796 eck$LassoCheckResult]: Loop: 35#L816-1true assume !false; 8#L149true assume test_~splverifierCounter~0 < 4; 28#L150true test_~tmp~0 := test_#t~nondet10;havoc test_#t~nondet10; 23#L158true assume !(0 != test_~tmp~0); 21#L158-1true test_~tmp___0~0 := test_#t~nondet11;havoc test_#t~nondet11; 5#L168true assume !(0 != test_~tmp___0~0); 4#L168-1true test_~tmp___2~0 := test_#t~nondet12;havoc test_#t~nondet12; 48#L178true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 13#L186-2true assume !(0 != ~pumpRunning~0); 52#L682true assume 0 != ~systemActive~0; 42#L689true havoc __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 12#L98true __utac_acc__Specification1_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret68;havoc __utac_acc__Specification1_spec__1_#t~ret68; 33#L816true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 35#L816-1true [2018-12-09 15:16:13,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:16:13,160 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-12-09 15:16:13,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:16:13,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:16:13,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:16:13,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:16:13,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:16:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:16:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:16:13,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:16:13,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1681619226, now seen corresponding path program 1 times [2018-12-09 15:16:13,279 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:16:13,279 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:16:13,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:16:13,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:16:13,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:16:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:16:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:16:13,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:16:13,288 INFO L82 PathProgramCache]: Analyzing trace with hash 32659712, now seen corresponding path program 1 times [2018-12-09 15:16:13,288 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:16:13,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:16:13,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:16:13,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:16:13,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:16:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:16:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:16:18,559 WARN L180 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-12-09 15:16:21,039 WARN L180 SmtUtils]: Spent 2.48 s on a formula simplification that was a NOOP. DAG size: 423 [2018-12-09 15:16:21,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 03:16:21 BoogieIcfgContainer [2018-12-09 15:16:21,072 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 15:16:21,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:16:21,072 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:16:21,072 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:16:21,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:16:13" (3/4) ... [2018-12-09 15:16:21,075 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-09 15:16:21,102 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0c100745-4002-47b1-a56e-4ccae7313f89/bin-2019/uautomizer/witness.graphml [2018-12-09 15:16:21,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:16:21,103 INFO L168 Benchmark]: Toolchain (without parser) took 8645.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.5 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -118.2 MB). Peak memory consumption was 195.3 MB. Max. memory is 11.5 GB. [2018-12-09 15:16:21,103 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:16:21,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:16:21,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:16:21,104 INFO L168 Benchmark]: Boogie Preprocessor took 16.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:16:21,104 INFO L168 Benchmark]: RCFGBuilder took 309.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2018-12-09 15:16:21,104 INFO L168 Benchmark]: BuchiAutomizer took 7985.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 178.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -18.8 MB). Peak memory consumption was 357.1 MB. Max. memory is 11.5 GB. [2018-12-09 15:16:21,104 INFO L168 Benchmark]: Witness Printer took 30.20 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2018-12-09 15:16:21,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 309.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7985.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 178.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -18.8 MB). Peak memory consumption was 357.1 MB. Max. memory is 11.5 GB. * Witness Printer took 30.20 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 7.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 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: 148]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=11, NULL=33, NULL=0, NULL=0, retValue_acc=0, NULL=14, NULL=0, NULL=0, NULL=28, NULL=0, NULL=39, NULL=19, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ea82e62=0, methaneLevelCritical=0, NULL=20, NULL=0, NULL=26, NULL=0, tmp___1=0, tmp___0=0, NULL=22, cleanupTimeShifts=4, tmp=0, NULL=24, NULL=18, NULL=15, NULL=8, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=12, NULL=16, tmp___0=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=34, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bab5b28=0, tmp=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b634e45=0, NULL=23, NULL=40, retValue_acc=1, NULL=38, NULL=29, tmp___2=56, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@443b741d=0, NULL=0, NULL=0, \result=0, NULL=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@204d38b8=0, NULL=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@764b5245=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2aa795dd=0, head=0, NULL=0, NULL=31, NULL=17, NULL=36} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L55] int waterLevel = 1; [L56] int methaneLevelCritical = 0; [L205] int cleanupTimeShifts = 4; [L474] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L674] int pumpRunning = 0; [L675] int systemActive = 1; [L282] int retValue_acc ; [L283] int tmp ; [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); [L289] tmp = valid_product() [L291] COND TRUE \read(tmp) [L139] int splverifierCounter ; [L140] int tmp ; [L141] int tmp___0 ; [L142] int tmp___1 ; [L143] int tmp___2 ; [L146] splverifierCounter = 0 Loop: [L148] COND TRUE 1 [L150] COND TRUE splverifierCounter < 4 [L156] tmp = __VERIFIER_nondet_int() [L158] COND FALSE !(\read(tmp)) [L166] tmp___0 = __VERIFIER_nondet_int() [L168] COND FALSE !(\read(tmp___0)) [L176] tmp___2 = __VERIFIER_nondet_int() [L178] COND TRUE \read(tmp___2) [L803] systemActive = 1 [L682] COND FALSE !(\read(pumpRunning)) [L689] COND TRUE \read(systemActive) [L809] int tmp ; [L810] int tmp___0 ; [L94] int retValue_acc ; [L97] retValue_acc = methaneLevelCritical [L98] return (retValue_acc); [L814] tmp = isMethaneLevelCritical() [L816] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...