./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product41_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_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/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 f25a9f8800d2b9b6ef21419533be8e4411f52f7f ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:27:54,870 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 05:27:54,871 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 05:27:54,876 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 05:27:54,877 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 05:27:54,877 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 05:27:54,878 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 05:27:54,879 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 05:27:54,879 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 05:27:54,880 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 05:27:54,880 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 05:27:54,880 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 05:27:54,881 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 05:27:54,881 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 05:27:54,882 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 05:27:54,882 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 05:27:54,882 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 05:27:54,883 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 05:27:54,884 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 05:27:54,885 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 05:27:54,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 05:27:54,886 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 05:27:54,887 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 05:27:54,887 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 05:27:54,887 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 05:27:54,888 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 05:27:54,888 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 05:27:54,889 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 05:27:54,889 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 05:27:54,890 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 05:27:54,890 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 05:27:54,890 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 05:27:54,890 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 05:27:54,890 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 05:27:54,891 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 05:27:54,891 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 05:27:54,891 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-09 05:27:54,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 05:27:54,899 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 05:27:54,900 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 05:27:54,900 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 05:27:54,900 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 05:27:54,900 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 05:27:54,900 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 05:27:54,900 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 05:27:54,901 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 05:27:54,901 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 05:27:54,902 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 05:27:54,902 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 05:27:54,902 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 05:27:54,902 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 05:27:54,902 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 05:27:54,902 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 05:27:54,902 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 05:27:54,902 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 05:27:54,902 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 05:27:54,902 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 05:27:54,902 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 05:27:54,903 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 05:27:54,903 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 05:27:54,903 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_71cc0be0-d072-41e3-abc7-e396c5a28aa7/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 -> f25a9f8800d2b9b6ef21419533be8e4411f52f7f [2018-12-09 05:27:54,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 05:27:54,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 05:27:54,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 05:27:54,934 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 05:27:54,934 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 05:27:54,935 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c [2018-12-09 05:27:54,973 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/data/88dd25043/9f7210e6385e486cb64a53caea51dd83/FLAG9266b55ed [2018-12-09 05:27:55,323 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 05:27:55,323 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/sv-benchmarks/c/product-lines/minepump_spec3_product41_true-unreach-call_false-termination.cil.c [2018-12-09 05:27:55,329 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/data/88dd25043/9f7210e6385e486cb64a53caea51dd83/FLAG9266b55ed [2018-12-09 05:27:55,720 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/data/88dd25043/9f7210e6385e486cb64a53caea51dd83 [2018-12-09 05:27:55,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 05:27:55,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 05:27:55,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 05:27:55,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 05:27:55,728 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 05:27:55,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:27:55" (1/1) ... [2018-12-09 05:27:55,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38efbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:55, skipping insertion in model container [2018-12-09 05:27:55,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:27:55" (1/1) ... [2018-12-09 05:27:55,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 05:27:55,763 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 05:27:55,931 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:27:55,975 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 05:27:56,014 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:27:56,030 INFO L195 MainTranslator]: Completed translation [2018-12-09 05:27:56,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56 WrapperNode [2018-12-09 05:27:56,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 05:27:56,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 05:27:56,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 05:27:56,031 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 05:27:56,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... [2018-12-09 05:27:56,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... [2018-12-09 05:27:56,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 05:27:56,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 05:27:56,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 05:27:56,065 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 05:27:56,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... [2018-12-09 05:27:56,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... [2018-12-09 05:27:56,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... [2018-12-09 05:27:56,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... [2018-12-09 05:27:56,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... [2018-12-09 05:27:56,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... [2018-12-09 05:27:56,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... [2018-12-09 05:27:56,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 05:27:56,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 05:27:56,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 05:27:56,086 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 05:27:56,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/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 05:27:56,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 05:27:56,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 05:27:56,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 05:27:56,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 05:27:56,444 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 05:27:56,444 INFO L280 CfgBuilder]: Removed 120 assue(true) statements. [2018-12-09 05:27:56,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:27:56 BoogieIcfgContainer [2018-12-09 05:27:56,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 05:27:56,444 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 05:27:56,444 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 05:27:56,447 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 05:27:56,447 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 05:27:56,447 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 05:27:55" (1/3) ... [2018-12-09 05:27:56,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41a25fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 05:27:56, skipping insertion in model container [2018-12-09 05:27:56,448 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 05:27:56,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:27:56" (2/3) ... [2018-12-09 05:27:56,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41a25fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 05:27:56, skipping insertion in model container [2018-12-09 05:27:56,448 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 05:27:56,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:27:56" (3/3) ... [2018-12-09 05:27:56,449 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product41_true-unreach-call_false-termination.cil.c [2018-12-09 05:27:56,480 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 05:27:56,481 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 05:27:56,481 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 05:27:56,481 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 05:27:56,481 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 05:27:56,481 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 05:27:56,481 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 05:27:56,481 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 05:27:56,481 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 05:27:56,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states. [2018-12-09 05:27:56,505 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2018-12-09 05:27:56,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:27:56,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:27:56,510 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 05:27:56,510 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:27:56,510 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 05:27:56,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states. [2018-12-09 05:27:56,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2018-12-09 05:27:56,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:27:56,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:27:56,513 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 05:27:56,513 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:27:56,517 INFO L794 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);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(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 18#L-1true havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 23#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 17#L73true main_#t~ret38 := valid_product_#res;main_~tmp~5 := main_#t~ret38;havoc main_#t~ret38; 53#L538true assume 0 != main_~tmp~5; 5#L515true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 11#L343-1true [2018-12-09 05:27:56,517 INFO L796 eck$LassoCheckResult]: Loop: 11#L343-1true assume !false; 58#L272true assume test_~splverifierCounter~0 < 4; 68#L273true test_~tmp~3 := test_#t~nondet21;havoc test_#t~nondet21; 34#L281true assume !(0 != test_~tmp~3); 30#L281-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 90#L291true assume !(0 != test_~tmp___0~1); 86#L291-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 64#L301true assume 0 != test_~tmp___2~0; 27#L307-2true assume !(0 != ~pumpRunning~0); 49#L95true assume !(0 != ~systemActive~0); 6#L102true havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 76#L405-1true __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 52#L337true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 11#L343-1true [2018-12-09 05:27:56,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:56,520 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-12-09 05:27:56,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:56,522 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:56,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:27:56,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:56,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:56,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1681191243, now seen corresponding path program 1 times [2018-12-09 05:27:56,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:56,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:56,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:27:56,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:56,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:56,647 INFO L82 PathProgramCache]: Analyzing trace with hash 33087695, now seen corresponding path program 1 times [2018-12-09 05:27:56,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:56,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:56,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:27:56,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:27:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:27:56,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:27:56,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 05:27:56,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 05:27:56,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 05:27:56,799 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 6 states. [2018-12-09 05:27:56,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:27:56,848 INFO L93 Difference]: Finished difference Result 90 states and 124 transitions. [2018-12-09 05:27:56,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 05:27:56,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 124 transitions. [2018-12-09 05:27:56,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2018-12-09 05:27:56,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 83 states and 117 transitions. [2018-12-09 05:27:56,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 83 [2018-12-09 05:27:56,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 83 [2018-12-09 05:27:56,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 117 transitions. [2018-12-09 05:27:56,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 05:27:56,860 INFO L705 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2018-12-09 05:27:56,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 117 transitions. [2018-12-09 05:27:56,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-12-09 05:27:56,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-12-09 05:27:56,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2018-12-09 05:27:56,883 INFO L728 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2018-12-09 05:27:56,883 INFO L608 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2018-12-09 05:27:56,883 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 05:27:56,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 117 transitions. [2018-12-09 05:27:56,884 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2018-12-09 05:27:56,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:27:56,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:27:56,884 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 05:27:56,884 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:27:56,884 INFO L794 eck$LassoCheckResult]: Stem: 261#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);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(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 229#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 230#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 224#L73 main_#t~ret38 := valid_product_#res;main_~tmp~5 := main_#t~ret38;havoc main_#t~ret38; 225#L538 assume 0 != main_~tmp~5; 202#L515 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 203#L343-1 [2018-12-09 05:27:56,885 INFO L796 eck$LassoCheckResult]: Loop: 203#L343-1 assume !false; 215#L272 assume test_~splverifierCounter~0 < 4; 270#L273 test_~tmp~3 := test_#t~nondet21;havoc test_#t~nondet21; 247#L281 assume !(0 != test_~tmp~3); 238#L281-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 245#L291 assume !(0 != test_~tmp___0~1); 263#L291-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 274#L301 assume 0 != test_~tmp___2~0; 232#L307-2 assume !(0 != ~pumpRunning~0); 239#L95 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 226#L127 assume !(0 == ~pumpRunning~0); 204#L102 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 205#L405-1 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 264#L337 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 203#L343-1 [2018-12-09 05:27:56,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:56,885 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-12-09 05:27:56,885 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:56,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:56,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:27:56,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:56,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:56,921 INFO L82 PathProgramCache]: Analyzing trace with hash -619089842, now seen corresponding path program 1 times [2018-12-09 05:27:56,921 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:56,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:56,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,922 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:27:56,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:27:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:27:56,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:27:56,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 05:27:56,934 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-09 05:27:56,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 05:27:56,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 05:27:56,934 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. cyclomatic complexity: 36 Second operand 3 states. [2018-12-09 05:27:56,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:27:56,972 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2018-12-09 05:27:56,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 05:27:56,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 177 transitions. [2018-12-09 05:27:56,974 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2018-12-09 05:27:56,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 130 states and 177 transitions. [2018-12-09 05:27:56,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 130 [2018-12-09 05:27:56,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 130 [2018-12-09 05:27:56,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 130 states and 177 transitions. [2018-12-09 05:27:56,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 05:27:56,975 INFO L705 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2018-12-09 05:27:56,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states and 177 transitions. [2018-12-09 05:27:56,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-12-09 05:27:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-12-09 05:27:56,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2018-12-09 05:27:56,980 INFO L728 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2018-12-09 05:27:56,980 INFO L608 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2018-12-09 05:27:56,980 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 05:27:56,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 177 transitions. [2018-12-09 05:27:56,981 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2018-12-09 05:27:56,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:27:56,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:27:56,981 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 05:27:56,981 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:27:56,981 INFO L794 eck$LassoCheckResult]: Stem: 480#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);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(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 443#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 444#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 441#L73 main_#t~ret38 := valid_product_#res;main_~tmp~5 := main_#t~ret38;havoc main_#t~ret38; 442#L538 assume 0 != main_~tmp~5; 421#L515 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 422#L343-1 [2018-12-09 05:27:56,982 INFO L796 eck$LassoCheckResult]: Loop: 422#L343-1 assume !false; 433#L272 assume test_~splverifierCounter~0 < 4; 489#L273 test_~tmp~3 := test_#t~nondet21;havoc test_#t~nondet21; 465#L281 assume !(0 != test_~tmp~3); 456#L281-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 462#L291 assume !(0 != test_~tmp___0~1); 482#L291-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 493#L301 assume 0 != test_~tmp___2~0; 449#L307-2 assume !(0 != ~pumpRunning~0); 457#L95 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 445#L127 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 446#L445 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 472#L450 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 473#L247 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 503#L247-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 477#L253 processEnvironment_#t~ret1 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret1;havoc processEnvironment_#t~ret1; 464#L131 assume !(0 != processEnvironment_~tmp~0); 423#L102 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 424#L405-1 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 483#L337 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 422#L343-1 [2018-12-09 05:27:56,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:56,982 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-12-09 05:27:56,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:56,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:56,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:27:56,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:57,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:57,005 INFO L82 PathProgramCache]: Analyzing trace with hash -21695270, now seen corresponding path program 1 times [2018-12-09 05:27:57,005 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:57,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:57,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,006 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:27:57,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:57,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:57,014 INFO L82 PathProgramCache]: Analyzing trace with hash -6983296, now seen corresponding path program 1 times [2018-12-09 05:27:57,014 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:57,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:57,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:27:57,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:27:57,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:27:57,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 05:27:57,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 05:27:57,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 05:27:57,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 05:27:57,167 INFO L87 Difference]: Start difference. First operand 130 states and 177 transitions. cyclomatic complexity: 49 Second operand 5 states. [2018-12-09 05:27:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 05:27:57,277 INFO L93 Difference]: Finished difference Result 434 states and 594 transitions. [2018-12-09 05:27:57,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 05:27:57,278 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 434 states and 594 transitions. [2018-12-09 05:27:57,281 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 314 [2018-12-09 05:27:57,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 434 states to 434 states and 594 transitions. [2018-12-09 05:27:57,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 434 [2018-12-09 05:27:57,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 434 [2018-12-09 05:27:57,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 434 states and 594 transitions. [2018-12-09 05:27:57,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 05:27:57,287 INFO L705 BuchiCegarLoop]: Abstraction has 434 states and 594 transitions. [2018-12-09 05:27:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states and 594 transitions. [2018-12-09 05:27:57,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 254. [2018-12-09 05:27:57,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-12-09 05:27:57,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 340 transitions. [2018-12-09 05:27:57,299 INFO L728 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2018-12-09 05:27:57,300 INFO L608 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2018-12-09 05:27:57,300 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 05:27:57,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 254 states and 340 transitions. [2018-12-09 05:27:57,301 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2018-12-09 05:27:57,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:27:57,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:27:57,302 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 05:27:57,302 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:27:57,302 INFO L794 eck$LassoCheckResult]: Stem: 1070#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.alloc(13);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(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(13);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(30);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(9);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(21);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(30);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(9);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(21);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(30);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(9);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(25);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(30);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(9);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(25); 1025#L-1 havoc main_#res;havoc main_#t~ret38, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1026#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1023#L73 main_#t~ret38 := valid_product_#res;main_~tmp~5 := main_#t~ret38;havoc main_#t~ret38; 1024#L538 assume 0 != main_~tmp~5; 1003#L515 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1004#L343-1 [2018-12-09 05:27:57,303 INFO L796 eck$LassoCheckResult]: Loop: 1004#L343-1 assume !false; 1015#L272 assume test_~splverifierCounter~0 < 4; 1079#L273 test_~tmp~3 := test_#t~nondet21;havoc test_#t~nondet21; 1252#L281 assume !(0 != test_~tmp~3); 1250#L281-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 1249#L291 assume !(0 != test_~tmp___0~1); 1248#L291-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1247#L301 assume 0 != test_~tmp___2~0; 1040#L307-2 assume !(0 != ~pumpRunning~0); 1041#L95 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 1027#L127 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret20, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 1028#L445 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 1060#L450 isHighWaterLevel_#t~ret20 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret20;havoc isHighWaterLevel_#t~ret20; 1061#L247 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1100#L247-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1065#L253 processEnvironment_#t~ret1 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret1;havoc processEnvironment_#t~ret1; 1049#L131 assume !(0 != processEnvironment_~tmp~0); 1005#L102 havoc __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_#t~ret26, __utac_acc__Specification3_spec__1_#t~ret27, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 1006#L405-1 __utac_acc__Specification3_spec__1_#t~ret25 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret25;havoc __utac_acc__Specification3_spec__1_#t~ret25; 1073#L337 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 1074#L437 __utac_acc__Specification3_spec__1_#t~ret26 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret26;havoc __utac_acc__Specification3_spec__1_#t~ret26; 1009#L343 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1004#L343-1 [2018-12-09 05:27:57,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:57,303 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2018-12-09 05:27:57,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:57,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:57,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:27:57,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:57,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:57,325 INFO L82 PathProgramCache]: Analyzing trace with hash 625688428, now seen corresponding path program 1 times [2018-12-09 05:27:57,325 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:57,325 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:57,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,326 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:27:57,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:57,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:27:57,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1878993554, now seen corresponding path program 1 times [2018-12-09 05:27:57,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:27:57,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:27:57,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:27:57,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:27:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:27:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:28:00,793 WARN L180 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-12-09 05:28:02,430 WARN L180 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 423 [2018-12-09 05:28:02,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 05:28:02 BoogieIcfgContainer [2018-12-09 05:28:02,460 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 05:28:02,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 05:28:02,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 05:28:02,460 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 05:28:02,461 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:27:56" (3/4) ... [2018-12-09 05:28:02,462 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-09 05:28:02,491 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71cc0be0-d072-41e3-abc7-e396c5a28aa7/bin-2019/uautomizer/witness.graphml [2018-12-09 05:28:02,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 05:28:02,492 INFO L168 Benchmark]: Toolchain (without parser) took 6768.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 950.6 MB in the beginning and 828.6 MB in the end (delta: 122.0 MB). Peak memory consumption was 271.9 MB. Max. memory is 11.5 GB. [2018-12-09 05:28:02,492 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:28:02,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-12-09 05:28:02,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 05:28:02,493 INFO L168 Benchmark]: Boogie Preprocessor took 20.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:28:02,493 INFO L168 Benchmark]: RCFGBuilder took 358.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2018-12-09 05:28:02,494 INFO L168 Benchmark]: BuchiAutomizer took 6015.22 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 55.1 MB). Free memory was 1.0 GB in the beginning and 833.0 MB in the end (delta: 191.4 MB). Peak memory consumption was 258.9 MB. Max. memory is 11.5 GB. [2018-12-09 05:28:02,494 INFO L168 Benchmark]: Witness Printer took 31.33 ms. Allocated memory is still 1.2 GB. Free memory was 833.0 MB in the beginning and 828.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. [2018-12-09 05:28:02,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 358.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6015.22 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 55.1 MB). Free memory was 1.0 GB in the beginning and 833.0 MB in the end (delta: 191.4 MB). Peak memory consumption was 258.9 MB. Max. memory is 11.5 GB. * Witness Printer took 31.33 ms. Allocated memory is still 1.2 GB. Free memory was 833.0 MB in the beginning and 828.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 254 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 180 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 254 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 392 SDtfs, 891 SDslu, 536 SDs, 0 SdLazy, 108 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 271]: 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=24, NULL=0, NULL=0, NULL=39, NULL=29, NULL=0, NULL=0, retValue_acc=0, NULL=27, methaneLevelCritical=0, NULL=16, tmp___0=0, tmp=0, retValue_acc=0, NULL=0, NULL=0, NULL=18, NULL=0, NULL=38, NULL=0, tmp___1=0, NULL=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a5e36bd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@529cf044=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@371b51fa=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aa3002=0, NULL=19, tmp=0, NULL=23, tmp___0=1, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=35, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67fe0019=0, NULL=14, \result=0, retValue_acc=0, NULL=8, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3beb2468=0, NULL=15, \result=0, retValue_acc=1, NULL=0, NULL=37, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23cd27e0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d501c49=56, tmp=1, NULL=17, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29e66e08=0, \result=1, NULL=40, NULL=11, NULL=0, tmp=1, NULL=31, retValue_acc=1, retValue_acc=1, tmp___2=56, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=28, NULL=34, tmp=0, NULL=12, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2717bc04=0, head=0, NULL=22, NULL=0, NULL=0, NULL=0, NULL=0, NULL=36, NULL=26} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L87] int pumpRunning = 0; [L88] int systemActive = 1; [L362] int waterLevel = 1; [L363] int methaneLevelCritical = 0; [L456] int cleanupTimeShifts = 4; [L721] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L529] int retValue_acc ; [L530] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L536] tmp = valid_product() [L538] COND TRUE \read(tmp) [L262] int splverifierCounter ; [L263] int tmp ; [L264] int tmp___0 ; [L265] int tmp___1 ; [L266] int tmp___2 ; [L269] splverifierCounter = 0 Loop: [L271] COND TRUE 1 [L273] COND TRUE splverifierCounter < 4 [L279] tmp = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp)) [L289] tmp___0 = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp___0)) [L299] tmp___2 = __VERIFIER_nondet_int() [L301] COND TRUE \read(tmp___2) [L95] COND FALSE !(\read(pumpRunning)) [L102] COND TRUE \read(systemActive) [L124] int tmp ; [L127] COND TRUE ! pumpRunning [L239] int retValue_acc ; [L240] int tmp ; [L241] int tmp___0 ; [L442] int retValue_acc ; [L445] COND TRUE waterLevel < 2 [L446] retValue_acc = 1 [L447] return (retValue_acc); [L245] tmp = isHighWaterSensorDry() [L247] COND TRUE \read(tmp) [L248] tmp___0 = 0 [L252] retValue_acc = tmp___0 [L253] return (retValue_acc); [L129] tmp = isHighWaterLevel() [L131] COND FALSE !(\read(tmp)) [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L401] int retValue_acc ; [L404] retValue_acc = methaneLevelCritical [L405] return (retValue_acc); [L335] tmp = isMethaneLevelCritical() [L337] COND FALSE !(\read(tmp)) [L433] int retValue_acc ; [L436] retValue_acc = waterLevel [L437] return (retValue_acc); [L341] tmp___0 = getWaterLevel() [L343] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...