./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product64_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_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product64_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/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 73819447b87648cd463b03989cd8839b460fd303 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2018-12-08 13:49:55,521 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:49:55,522 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:49:55,528 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:49:55,528 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:49:55,529 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:49:55,529 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:49:55,530 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:49:55,531 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:49:55,531 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:49:55,532 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:49:55,532 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:49:55,532 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:49:55,533 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:49:55,533 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:49:55,534 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:49:55,534 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:49:55,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:49:55,536 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:49:55,536 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:49:55,537 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:49:55,537 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:49:55,538 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:49:55,538 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:49:55,538 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:49:55,539 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:49:55,539 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:49:55,540 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:49:55,540 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:49:55,541 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:49:55,541 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:49:55,541 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:49:55,541 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:49:55,541 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:49:55,542 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:49:55,542 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:49:55,542 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-08 13:49:55,549 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:49:55,549 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:49:55,550 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:49:55,550 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:49:55,550 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 13:49:55,550 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 13:49:55,551 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 13:49:55,551 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 13:49:55,552 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 13:49:55,552 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 13:49:55,553 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:49:55,553 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 13:49:55,553 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 13:49:55,553 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 13:49:55,553 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_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/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 -> 73819447b87648cd463b03989cd8839b460fd303 [2018-12-08 13:49:55,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:49:55,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:49:55,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:49:55,579 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:49:55,579 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:49:55,579 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product64_true-unreach-call_false-termination.cil.c [2018-12-08 13:49:55,615 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/data/02d48b44a/5cb44879c1bd45d9b971b663e2327a88/FLAG18deffa5a [2018-12-08 13:49:56,063 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:49:56,064 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/sv-benchmarks/c/product-lines/minepump_spec2_product64_true-unreach-call_false-termination.cil.c [2018-12-08 13:49:56,070 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/data/02d48b44a/5cb44879c1bd45d9b971b663e2327a88/FLAG18deffa5a [2018-12-08 13:49:56,078 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/data/02d48b44a/5cb44879c1bd45d9b971b663e2327a88 [2018-12-08 13:49:56,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:49:56,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:49:56,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:49:56,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:49:56,083 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:49:56,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56, skipping insertion in model container [2018-12-08 13:49:56,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:49:56,112 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:49:56,266 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:49:56,275 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 13:49:56,368 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:49:56,384 INFO L195 MainTranslator]: Completed translation [2018-12-08 13:49:56,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56 WrapperNode [2018-12-08 13:49:56,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 13:49:56,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 13:49:56,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 13:49:56,385 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 13:49:56,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 13:49:56,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 13:49:56,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 13:49:56,431 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 13:49:56,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... [2018-12-08 13:49:56,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 13:49:56,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 13:49:56,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 13:49:56,461 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 13:49:56,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/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 [2018-12-08 13:49:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 13:49:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 13:49:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 13:49:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 13:49:56,946 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 13:49:56,947 INFO L280 CfgBuilder]: Removed 356 assue(true) statements. [2018-12-08 13:49:56,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:49:56 BoogieIcfgContainer [2018-12-08 13:49:56,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 13:49:56,948 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 13:49:56,948 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 13:49:56,951 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 13:49:56,951 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 13:49:56,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 01:49:56" (1/3) ... [2018-12-08 13:49:56,952 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6edc4424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 01:49:56, skipping insertion in model container [2018-12-08 13:49:56,953 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 13:49:56,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:49:56" (2/3) ... [2018-12-08 13:49:56,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6edc4424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 01:49:56, skipping insertion in model container [2018-12-08 13:49:56,953 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 13:49:56,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:49:56" (3/3) ... [2018-12-08 13:49:56,955 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product64_true-unreach-call_false-termination.cil.c [2018-12-08 13:49:56,993 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 13:49:56,993 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 13:49:56,993 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 13:49:56,994 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 13:49:56,994 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 13:49:56,994 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 13:49:56,994 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 13:49:56,994 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 13:49:56,994 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 13:49:57,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2018-12-08 13:49:57,025 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2018-12-08 13:49:57,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:49:57,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:49:57,031 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:49:57,031 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:49:57,031 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 13:49:57,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2018-12-08 13:49:57,035 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2018-12-08 13:49:57,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:49:57,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:49:57,036 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:49:57,036 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:49:57,039 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.alloc(13);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 15#L-1true havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 21#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; 105#L73true main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 75#L661true assume 0 != main_~tmp~8; 41#L637true ~methAndRunningLastTime~0 := 0; 157#L441true havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 160#L452-1true [2018-12-08 13:49:57,039 INFO L796 eck$LassoCheckResult]: Loop: 160#L452-1true assume !false; 98#L368true assume test_~splverifierCounter~0 < 4; 82#L369true test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 194#L377true assume !(0 != test_~tmp~6); 195#L377-1true test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 100#L387true assume !(0 != test_~tmp___0~2); 102#L387-1true test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 164#L397true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 68#L405-1true assume !(0 != ~pumpRunning~0); 24#L98true assume !(0 != ~systemActive~0); 179#L105true havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 172#L518-5true __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 155#L452true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 160#L452-1true [2018-12-08 13:49:57,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:49:57,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-12-08 13:49:57,043 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:49:57,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:49:57,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:49:57,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:49:57,163 INFO L82 PathProgramCache]: Analyzing trace with hash 18699284, now seen corresponding path program 1 times [2018-12-08 13:49:57,163 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:49:57,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:49:57,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:49:57,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:49:57,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:49:57,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:49:57,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:49:57,197 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 13:49:57,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:49:57,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:49:57,208 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2018-12-08 13:49:57,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:49:57,256 INFO L93 Difference]: Finished difference Result 449 states and 661 transitions. [2018-12-08 13:49:57,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:49:57,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 449 states and 661 transitions. [2018-12-08 13:49:57,262 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 294 [2018-12-08 13:49:57,267 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 449 states to 435 states and 646 transitions. [2018-12-08 13:49:57,268 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 435 [2018-12-08 13:49:57,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 435 [2018-12-08 13:49:57,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 435 states and 646 transitions. [2018-12-08 13:49:57,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 13:49:57,271 INFO L705 BuchiCegarLoop]: Abstraction has 435 states and 646 transitions. [2018-12-08 13:49:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states and 646 transitions. [2018-12-08 13:49:57,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 433. [2018-12-08 13:49:57,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2018-12-08 13:49:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 643 transitions. [2018-12-08 13:49:57,303 INFO L728 BuchiCegarLoop]: Abstraction has 433 states and 643 transitions. [2018-12-08 13:49:57,303 INFO L608 BuchiCegarLoop]: Abstraction has 433 states and 643 transitions. [2018-12-08 13:49:57,303 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 13:49:57,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 433 states and 643 transitions. [2018-12-08 13:49:57,305 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 292 [2018-12-08 13:49:57,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:49:57,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:49:57,306 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:49:57,306 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:49:57,306 INFO L794 eck$LassoCheckResult]: Stem: 817#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.alloc(13);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 709#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 710#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; 720#L73 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 800#L661 assume 0 != main_~tmp~8; 750#L637 ~methAndRunningLastTime~0 := 0; 751#L441 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 898#L452-1 [2018-12-08 13:49:57,306 INFO L796 eck$LassoCheckResult]: Loop: 898#L452-1 assume !false; 949#L368 assume test_~splverifierCounter~0 < 4; 948#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 922#L377 assume !(0 != test_~tmp~6); 920#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 946#L387 assume !(0 != test_~tmp___0~2); 944#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 943#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 788#L405-1 assume !(0 != ~pumpRunning~0); 725#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 726#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 808#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 790#L130-3 assume !(0 == ~pumpRunning~0); 687#L105 havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 954#L518-5 __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 952#L452 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 898#L452-1 [2018-12-08 13:49:57,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:49:57,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-12-08 13:49:57,306 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:49:57,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:49:57,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:49:57,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:49:57,345 INFO L82 PathProgramCache]: Analyzing trace with hash -407199801, now seen corresponding path program 1 times [2018-12-08 13:49:57,345 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:49:57,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:49:57,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,346 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 13:49:57,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:49:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:49:57,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:49:57,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:49:57,358 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 13:49:57,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:49:57,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:49:57,359 INFO L87 Difference]: Start difference. First operand 433 states and 643 transitions. cyclomatic complexity: 213 Second operand 3 states. [2018-12-08 13:49:57,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:49:57,437 INFO L93 Difference]: Finished difference Result 432 states and 611 transitions. [2018-12-08 13:49:57,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:49:57,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 432 states and 611 transitions. [2018-12-08 13:49:57,441 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2018-12-08 13:49:57,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 432 states to 432 states and 611 transitions. [2018-12-08 13:49:57,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 432 [2018-12-08 13:49:57,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 432 [2018-12-08 13:49:57,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 432 states and 611 transitions. [2018-12-08 13:49:57,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 13:49:57,447 INFO L705 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2018-12-08 13:49:57,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states and 611 transitions. [2018-12-08 13:49:57,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2018-12-08 13:49:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-12-08 13:49:57,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 611 transitions. [2018-12-08 13:49:57,459 INFO L728 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2018-12-08 13:49:57,459 INFO L608 BuchiCegarLoop]: Abstraction has 432 states and 611 transitions. [2018-12-08 13:49:57,459 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 13:49:57,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 611 transitions. [2018-12-08 13:49:57,461 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2018-12-08 13:49:57,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:49:57,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:49:57,462 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:49:57,463 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] [2018-12-08 13:49:57,463 INFO L794 eck$LassoCheckResult]: Stem: 1733#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.alloc(13);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 1589#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 1590#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; 1583#L73 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 1584#L661 assume 0 != main_~tmp~8; 1641#L637 ~methAndRunningLastTime~0 := 0; 1642#L441 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1698#L452-1 [2018-12-08 13:49:57,463 INFO L796 eck$LassoCheckResult]: Loop: 1698#L452-1 assume !false; 1836#L368 assume test_~splverifierCounter~0 < 4; 1835#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 1834#L377 assume !(0 != test_~tmp~6); 1832#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 1831#L387 assume !(0 != test_~tmp___0~2); 1829#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 1828#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1702#L405-1 assume !(0 != ~pumpRunning~0); 1785#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1826#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1825#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1824#L130-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1823#L558-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1821#L563-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 1813#L301-9 assume !(0 != isHighWaterLevel_~tmp~4);isHighWaterLevel_~tmp___0~0 := 1; 1809#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1805#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 1801#L134-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1560#L105 havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1842#L518-5 __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 1840#L452 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 1698#L452-1 [2018-12-08 13:49:57,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:49:57,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-12-08 13:49:57,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:49:57,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:49:57,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:49:57,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:49:57,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1236648395, now seen corresponding path program 1 times [2018-12-08 13:49:57,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:49:57,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:49:57,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,501 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 13:49:57,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:49:57,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:49:57,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:49:57,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 13:49:57,527 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 13:49:57,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 13:49:57,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 13:49:57,527 INFO L87 Difference]: Start difference. First operand 432 states and 611 transitions. cyclomatic complexity: 182 Second operand 4 states. [2018-12-08 13:49:57,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:49:57,617 INFO L93 Difference]: Finished difference Result 839 states and 1161 transitions. [2018-12-08 13:49:57,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 13:49:57,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 839 states and 1161 transitions. [2018-12-08 13:49:57,623 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 586 [2018-12-08 13:49:57,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 839 states to 839 states and 1161 transitions. [2018-12-08 13:49:57,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 839 [2018-12-08 13:49:57,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 839 [2018-12-08 13:49:57,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 839 states and 1161 transitions. [2018-12-08 13:49:57,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 13:49:57,630 INFO L705 BuchiCegarLoop]: Abstraction has 839 states and 1161 transitions. [2018-12-08 13:49:57,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states and 1161 transitions. [2018-12-08 13:49:57,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 468. [2018-12-08 13:49:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2018-12-08 13:49:57,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 647 transitions. [2018-12-08 13:49:57,641 INFO L728 BuchiCegarLoop]: Abstraction has 468 states and 647 transitions. [2018-12-08 13:49:57,641 INFO L608 BuchiCegarLoop]: Abstraction has 468 states and 647 transitions. [2018-12-08 13:49:57,641 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 13:49:57,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 468 states and 647 transitions. [2018-12-08 13:49:57,643 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2018-12-08 13:49:57,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 13:49:57,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 13:49:57,644 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:49:57,644 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] [2018-12-08 13:49:57,644 INFO L794 eck$LassoCheckResult]: Stem: 3023#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.alloc(13);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 2873#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8; 2874#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; 2869#L73 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 2870#L661 assume 0 != main_~tmp~8; 2924#L637 ~methAndRunningLastTime~0 := 0; 2925#L441 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2982#L452-1 [2018-12-08 13:49:57,645 INFO L796 eck$LassoCheckResult]: Loop: 2982#L452-1 assume !false; 2985#L368 assume test_~splverifierCounter~0 < 4; 3054#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 3019#L377 assume !(0 != test_~tmp~6); 3009#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 2847#L387 assume !(0 != test_~tmp___0~2); 2849#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 2852#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2987#L405-1 assume !(0 != ~pumpRunning~0); 2890#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2891#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3140#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3137#L130-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 3048#L558-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 3049#L563-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 2932#L301-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 2927#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 2897#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 2898#L134-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2841#L105 havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 2991#L518-5 __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 2981#L452 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 2982#L452-1 [2018-12-08 13:49:57,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:49:57,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-12-08 13:49:57,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:49:57,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:49:57,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:49:57,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:49:57,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1283311539, now seen corresponding path program 1 times [2018-12-08 13:49:57,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:49:57,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:49:57,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,678 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 13:49:57,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:49:57,688 INFO L82 PathProgramCache]: Analyzing trace with hash 416127097, now seen corresponding path program 1 times [2018-12-08 13:49:57,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 13:49:57,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 13:49:57,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:49:57,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 13:49:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:49:57,830 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2018-12-08 13:50:02,238 WARN L180 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-12-08 13:50:04,291 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 425 [2018-12-08 13:50:04,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 01:50:04 BoogieIcfgContainer [2018-12-08 13:50:04,324 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 13:50:04,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 13:50:04,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 13:50:04,324 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 13:50:04,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:49:56" (3/4) ... [2018-12-08 13:50:04,326 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-08 13:50:04,361 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b6b7f0d4-4260-4f55-bb01-484e1d70b6b8/bin-2019/uautomizer/witness.graphml [2018-12-08 13:50:04,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 13:50:04,362 INFO L168 Benchmark]: Toolchain (without parser) took 8281.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:50:04,362 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:50:04,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:04,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.32 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. [2018-12-08 13:50:04,363 INFO L168 Benchmark]: Boogie Preprocessor took 30.42 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:04,363 INFO L168 Benchmark]: RCFGBuilder took 486.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 998.9 MB in the end (delta: 93.3 MB). Peak memory consumption was 93.3 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:04,363 INFO L168 Benchmark]: BuchiAutomizer took 7376.24 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 998.9 MB in the beginning and 1.1 GB in the end (delta: -138.1 MB). Peak memory consumption was 214.3 MB. Max. memory is 11.5 GB. [2018-12-08 13:50:04,364 INFO L168 Benchmark]: Witness Printer took 37.54 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: 983.6 kB). Peak memory consumption was 983.6 kB. Max. memory is 11.5 GB. [2018-12-08 13:50:04,365 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.32 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 30.42 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 486.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 998.9 MB in the end (delta: 93.3 MB). Peak memory consumption was 93.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7376.24 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 998.9 MB in the beginning and 1.1 GB in the end (delta: -138.1 MB). Peak memory consumption was 214.3 MB. Max. memory is 11.5 GB. * Witness Printer took 37.54 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: 983.6 kB). Peak memory consumption was 983.6 kB. 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 4 locations. The remainder module has 468 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 6.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 373 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 468 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 862 SDtfs, 921 SDslu, 838 SDs, 0 SdLazy, 138 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 367]: 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=22, NULL=0, NULL=0, NULL=0, NULL=0, NULL=38, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f2ce12b=0, NULL=27, NULL=0, NULL=0, NULL=39, NULL=34, NULL=24, NULL=31, methaneLevelCritical=0, NULL=14, tmp___0=0, retValue_acc=0, NULL=0, NULL=0, NULL=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@875f475=0, tmp=0, NULL=37, tmp___1=0, tmp=0, NULL=12, cleanupTimeShifts=4, NULL=17, NULL=20, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=29, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48f9456e=0, NULL=11, retValue_acc=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70e5cc4f=0, NULL=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@403a8ebb=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b09d9be=56, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b8c74ed=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@439d562d=0, NULL=15, NULL=0, \result=1, NULL=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@316be22b=0, NULL=0, NULL=0, tmp=1, NULL=0, retValue_acc=1, tmp___0=0, tmp___2=56, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=33, NULL=26, NULL=28, NULL=8, tmp=0, head=0, tmp=0, NULL=19, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e873db3=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bc01fa9=0, NULL=0, NULL=35, NULL=23, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L435] int methAndRunningLastTime ; [L475] int waterLevel = 1; [L476] int methaneLevelCritical = 0; [L578] int cleanupTimeShifts = 4; [L844] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int retValue_acc ; [L653] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L659] tmp = valid_product() [L661] COND TRUE \read(tmp) [L440] methAndRunningLastTime = 0 [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 Loop: [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND FALSE !(\read(tmp)) [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND TRUE \read(tmp___2) [L349] systemActive = 1 [L98] COND FALSE !(\read(pumpRunning)) [L105] COND TRUE \read(systemActive) [L179] int tmp ; [L182] COND FALSE !(\read(pumpRunning)) [L153] int tmp ; [L156] COND FALSE !(\read(pumpRunning)) [L127] int tmp ; [L130] COND TRUE ! pumpRunning [L293] int retValue_acc ; [L294] int tmp ; [L295] int tmp___0 ; [L555] int retValue_acc ; [L558] COND TRUE waterLevel < 2 [L559] retValue_acc = 1 [L560] return (retValue_acc); [L299] tmp = isHighWaterSensorDry() [L301] COND TRUE \read(tmp) [L302] tmp___0 = 0 [L306] retValue_acc = tmp___0 [L307] return (retValue_acc); [L132] tmp = isHighWaterLevel() [L134] COND FALSE !(\read(tmp)) [L445] int tmp ; [L446] int tmp___0 ; [L514] int retValue_acc ; [L517] retValue_acc = methaneLevelCritical [L518] return (retValue_acc); [L450] tmp = isMethaneLevelCritical() [L452] COND FALSE !(\read(tmp)) [L468] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...