./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product40_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product40_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/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 420052417c34af57247f22c0bc8935a6e484860c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-5842f4b [2018-11-18 15:12:03,335 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:12:03,337 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:12:03,343 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:12:03,343 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:12:03,344 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:12:03,345 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:12:03,346 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:12:03,347 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:12:03,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:12:03,348 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:12:03,348 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:12:03,349 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:12:03,350 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:12:03,350 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:12:03,351 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:12:03,352 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:12:03,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:12:03,354 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:12:03,355 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:12:03,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:12:03,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:12:03,358 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:12:03,359 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:12:03,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:12:03,359 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:12:03,360 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:12:03,361 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:12:03,361 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:12:03,362 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:12:03,362 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:12:03,363 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:12:03,363 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:12:03,363 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:12:03,364 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:12:03,364 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:12:03,364 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 15:12:03,375 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:12:03,375 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:12:03,376 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:12:03,376 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:12:03,377 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:12:03,377 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 15:12:03,377 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 15:12:03,377 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 15:12:03,377 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 15:12:03,377 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 15:12:03,378 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 15:12:03,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:12:03,378 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:12:03,378 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:12:03,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:12:03,378 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:12:03,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:12:03,379 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 15:12:03,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 15:12:03,379 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 15:12:03,379 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:12:03,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:12:03,379 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 15:12:03,379 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:12:03,379 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 15:12:03,380 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:12:03,380 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:12:03,380 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 15:12:03,380 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:12:03,380 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:12:03,380 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 15:12:03,381 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 15:12:03,381 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_a4d013f9-a701-4563-90c8-4476251114c0/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 -> 420052417c34af57247f22c0bc8935a6e484860c [2018-11-18 15:12:03,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:12:03,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:12:03,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:12:03,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:12:03,413 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:12:03,414 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product40_true-unreach-call_false-termination.cil.c [2018-11-18 15:12:03,449 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/data/e8cb20083/1622a5f41f1e4f248fc7b526d66d6895/FLAGc4c221128 [2018-11-18 15:12:03,868 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:12:03,869 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/sv-benchmarks/c/product-lines/minepump_spec5_product40_true-unreach-call_false-termination.cil.c [2018-11-18 15:12:03,876 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/data/e8cb20083/1622a5f41f1e4f248fc7b526d66d6895/FLAGc4c221128 [2018-11-18 15:12:03,884 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/data/e8cb20083/1622a5f41f1e4f248fc7b526d66d6895 [2018-11-18 15:12:03,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:12:03,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:12:03,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:12:03,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:12:03,891 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:12:03,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:12:03" (1/1) ... [2018-11-18 15:12:03,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:03, skipping insertion in model container [2018-11-18 15:12:03,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:12:03" (1/1) ... [2018-11-18 15:12:03,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:12:03,933 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:12:04,121 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:12:04,130 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:12:04,262 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:12:04,284 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:12:04,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04 WrapperNode [2018-11-18 15:12:04,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:12:04,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:12:04,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:12:04,286 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:12:04,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... [2018-11-18 15:12:04,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... [2018-11-18 15:12:04,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:12:04,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:12:04,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:12:04,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:12:04,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... [2018-11-18 15:12:04,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... [2018-11-18 15:12:04,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... [2018-11-18 15:12:04,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... [2018-11-18 15:12:04,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... [2018-11-18 15:12:04,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... [2018-11-18 15:12:04,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... [2018-11-18 15:12:04,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:12:04,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:12:04,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:12:04,367 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:12:04,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/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 [2018-11-18 15:12:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:12:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:12:04,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:12:05,065 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:12:05,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:12:05 BoogieIcfgContainer [2018-11-18 15:12:05,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:12:05,066 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 15:12:05,066 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 15:12:05,068 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 15:12:05,069 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:12:05,069 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 03:12:03" (1/3) ... [2018-11-18 15:12:05,070 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b7c118a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:12:05, skipping insertion in model container [2018-11-18 15:12:05,071 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:12:05,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:12:04" (2/3) ... [2018-11-18 15:12:05,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b7c118a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:12:05, skipping insertion in model container [2018-11-18 15:12:05,071 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:12:05,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:12:05" (3/3) ... [2018-11-18 15:12:05,072 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product40_true-unreach-call_false-termination.cil.c [2018-11-18 15:12:05,107 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:12:05,108 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 15:12:05,108 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 15:12:05,108 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 15:12:05,108 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:12:05,108 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:12:05,108 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 15:12:05,108 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:12:05,108 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 15:12:05,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states. [2018-11-18 15:12:05,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2018-11-18 15:12:05,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:05,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:05,151 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:05,151 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] [2018-11-18 15:12:05,151 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 15:12:05,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states. [2018-11-18 15:12:05,157 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2018-11-18 15:12:05,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:05,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:05,158 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:05,158 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] [2018-11-18 15:12:05,163 INFO L794 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(21);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(30);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(9);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 8#L877true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 120#L870true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 48#L885true main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 78#L832true assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 55#L805true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 63#L703true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, 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; 109#L270-3true [2018-11-18 15:12:05,164 INFO L796 eck$LassoCheckResult]: Loop: 109#L270-3true assume true; 121#L270-1true assume !false; 30#L271true assume test_~splverifierCounter~0 < 4; 156#L272true test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 174#L280true assume !(0 != test_~tmp~3); 171#L280-2true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 67#L290true assume !(0 != test_~tmp___0~1); 65#L290-2true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 145#L300true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 134#L253true assume { :end_inline_startSystem } true; 144#L308-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret59;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 94#L174true __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 107#L713true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 160#L63true assume !(0 != ~pumpRunning~0); 135#L63-2true assume !(0 != ~systemActive~0); 35#L70-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 27#L965true __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 106#L724true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 108#L724-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 100#L80true assume { :end_inline_timeShift } true; 109#L270-3true [2018-11-18 15:12:05,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:05,169 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 15:12:05,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:05,171 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:05,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:05,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:05,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:05,365 INFO L82 PathProgramCache]: Analyzing trace with hash -228346053, now seen corresponding path program 1 times [2018-11-18 15:12:05,365 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:05,365 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:05,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:05,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:12:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:12:05,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:12:05,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:12:05,422 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 15:12:05,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:12:05,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:12:05,438 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 3 states. [2018-11-18 15:12:05,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:12:05,496 INFO L93 Difference]: Finished difference Result 330 states and 434 transitions. [2018-11-18 15:12:05,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:12:05,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 330 states and 434 transitions. [2018-11-18 15:12:05,503 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 216 [2018-11-18 15:12:05,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 330 states to 310 states and 413 transitions. [2018-11-18 15:12:05,510 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 310 [2018-11-18 15:12:05,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 310 [2018-11-18 15:12:05,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 310 states and 413 transitions. [2018-11-18 15:12:05,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:12:05,513 INFO L705 BuchiCegarLoop]: Abstraction has 310 states and 413 transitions. [2018-11-18 15:12:05,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states and 413 transitions. [2018-11-18 15:12:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 307. [2018-11-18 15:12:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2018-11-18 15:12:05,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 409 transitions. [2018-11-18 15:12:05,547 INFO L728 BuchiCegarLoop]: Abstraction has 307 states and 409 transitions. [2018-11-18 15:12:05,547 INFO L608 BuchiCegarLoop]: Abstraction has 307 states and 409 transitions. [2018-11-18 15:12:05,547 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 15:12:05,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 307 states and 409 transitions. [2018-11-18 15:12:05,550 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2018-11-18 15:12:05,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:05,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:05,551 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:05,551 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, 1, 1, 1] [2018-11-18 15:12:05,551 INFO L794 eck$LassoCheckResult]: Stem: 689#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(21);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(30);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(9);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 531#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 523#L877 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 524#L870 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 588#L885 main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 589#L832 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 596#L805 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 597#L703 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, 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; 607#L270-3 [2018-11-18 15:12:05,551 INFO L796 eck$LassoCheckResult]: Loop: 607#L270-3 assume true; 668#L270-1 assume !false; 560#L271 assume test_~splverifierCounter~0 < 4; 561#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 707#L280 assume !(0 != test_~tmp~3); 703#L280-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 706#L290 assume !(0 != test_~tmp___0~1); 711#L290-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 691#L300 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet23;havoc test_#t~nondet23; 692#L308 assume !(0 != test_~tmp___1~0); 681#L308-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret59;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 690#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 652#L713 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 653#L63 assume !(0 != ~pumpRunning~0); 682#L63-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 683#L121 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 527#L95-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 528#L87-3 assume { :end_inline_processEnvironment__wrappee__base } true; 525#L95-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 526#L121-1 assume { :end_inline_processEnvironment } true; 568#L70-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 554#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 555#L724 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 571#L724-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 646#L80 assume { :end_inline_timeShift } true; 607#L270-3 [2018-11-18 15:12:05,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:05,552 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 15:12:05,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:05,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:05,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:05,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:05,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:05,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1883396190, now seen corresponding path program 1 times [2018-11-18 15:12:05,621 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:05,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:05,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,622 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:12:05,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:12:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:12:05,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:12:05,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:12:05,648 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 15:12:05,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:12:05,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:12:05,648 INFO L87 Difference]: Start difference. First operand 307 states and 409 transitions. cyclomatic complexity: 105 Second operand 3 states. [2018-11-18 15:12:05,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:12:05,770 INFO L93 Difference]: Finished difference Result 441 states and 566 transitions. [2018-11-18 15:12:05,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:12:05,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 441 states and 566 transitions. [2018-11-18 15:12:05,775 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2018-11-18 15:12:05,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 441 states to 441 states and 566 transitions. [2018-11-18 15:12:05,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 441 [2018-11-18 15:12:05,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 441 [2018-11-18 15:12:05,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 441 states and 566 transitions. [2018-11-18 15:12:05,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:12:05,782 INFO L705 BuchiCegarLoop]: Abstraction has 441 states and 566 transitions. [2018-11-18 15:12:05,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states and 566 transitions. [2018-11-18 15:12:05,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2018-11-18 15:12:05,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2018-11-18 15:12:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 566 transitions. [2018-11-18 15:12:05,800 INFO L728 BuchiCegarLoop]: Abstraction has 441 states and 566 transitions. [2018-11-18 15:12:05,800 INFO L608 BuchiCegarLoop]: Abstraction has 441 states and 566 transitions. [2018-11-18 15:12:05,800 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 15:12:05,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 441 states and 566 transitions. [2018-11-18 15:12:05,804 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2018-11-18 15:12:05,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:05,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:05,805 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:05,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:05,805 INFO L794 eck$LassoCheckResult]: Stem: 1445#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(21);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(30);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(9);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1287#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 1277#L877 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1278#L870 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1345#L885 main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 1346#L832 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 1356#L805 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1357#L703 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, 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; 1365#L270-3 [2018-11-18 15:12:05,805 INFO L796 eck$LassoCheckResult]: Loop: 1365#L270-3 assume true; 1428#L270-1 assume !false; 1429#L271 assume test_~splverifierCounter~0 < 4; 1539#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 1540#L280 assume !(0 != test_~tmp~3); 1502#L280-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 1503#L290 assume !(0 != test_~tmp___0~1); 1549#L290-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 1489#L300 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet23;havoc test_#t~nondet23; 1490#L308 assume !(0 != test_~tmp___1~0); 1440#L308-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret59;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1447#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 1547#L713 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1546#L63 assume !(0 != ~pumpRunning~0); 1541#L63-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1458#L121 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1281#L95-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1282#L973-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1559#L978-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1558#L223-3 assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; 1557#L223-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1556#L229-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1555#L99-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1294#L87-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1279#L95-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1280#L121-1 assume { :end_inline_processEnvironment } true; 1452#L70-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1571#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 1412#L724 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 1326#L724-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1407#L80 assume { :end_inline_timeShift } true; 1365#L270-3 [2018-11-18 15:12:05,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:05,806 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 15:12:05,806 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:05,806 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:05,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:05,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:05,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:05,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1208642380, now seen corresponding path program 1 times [2018-11-18 15:12:05,878 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:05,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:05,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,879 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:12:05,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:12:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:12:05,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:12:05,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:12:05,917 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 15:12:05,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:12:05,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:12:05,918 INFO L87 Difference]: Start difference. First operand 441 states and 566 transitions. cyclomatic complexity: 128 Second operand 5 states. [2018-11-18 15:12:06,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:12:06,032 INFO L93 Difference]: Finished difference Result 1416 states and 1796 transitions. [2018-11-18 15:12:06,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:12:06,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1416 states and 1796 transitions. [2018-11-18 15:12:06,039 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1044 [2018-11-18 15:12:06,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1416 states to 1416 states and 1796 transitions. [2018-11-18 15:12:06,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1416 [2018-11-18 15:12:06,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1416 [2018-11-18 15:12:06,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1416 states and 1796 transitions. [2018-11-18 15:12:06,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:12:06,046 INFO L705 BuchiCegarLoop]: Abstraction has 1416 states and 1796 transitions. [2018-11-18 15:12:06,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states and 1796 transitions. [2018-11-18 15:12:06,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 477. [2018-11-18 15:12:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2018-11-18 15:12:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 602 transitions. [2018-11-18 15:12:06,062 INFO L728 BuchiCegarLoop]: Abstraction has 477 states and 602 transitions. [2018-11-18 15:12:06,062 INFO L608 BuchiCegarLoop]: Abstraction has 477 states and 602 transitions. [2018-11-18 15:12:06,063 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 15:12:06,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 477 states and 602 transitions. [2018-11-18 15:12:06,064 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 339 [2018-11-18 15:12:06,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:06,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:06,065 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:06,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:06,066 INFO L794 eck$LassoCheckResult]: Stem: 3356#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(21);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(30);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(9);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 3158#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 3148#L877 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3149#L870 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 3220#L885 main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 3221#L832 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 3235#L805 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3236#L703 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, 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; 3246#L270-3 [2018-11-18 15:12:06,066 INFO L796 eck$LassoCheckResult]: Loop: 3246#L270-3 assume true; 3478#L270-1 assume !false; 3476#L271 assume test_~splverifierCounter~0 < 4; 3475#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 3474#L280 assume !(0 != test_~tmp~3); 3470#L280-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 3469#L290 assume !(0 != test_~tmp___0~1); 3428#L290-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 3429#L300 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3345#L253 assume { :end_inline_startSystem } true; 3346#L308-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret59;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 3466#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 3465#L713 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3374#L63 assume !(0 != ~pumpRunning~0); 3347#L63-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 3348#L121 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 3152#L95-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 3153#L973-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 3254#L978-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 3255#L223-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 3300#L223-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 3301#L229-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 3407#L99-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 3408#L87-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3486#L95-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3485#L121-1 assume { :end_inline_processEnvironment } true; 3461#L70-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 3459#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 3460#L724 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 3480#L724-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3479#L80 assume { :end_inline_timeShift } true; 3246#L270-3 [2018-11-18 15:12:06,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:06,066 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 15:12:06,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:06,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:06,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:06,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:06,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:06,112 INFO L82 PathProgramCache]: Analyzing trace with hash 174376388, now seen corresponding path program 1 times [2018-11-18 15:12:06,112 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:06,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:06,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,113 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:12:06,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:12:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:12:06,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:12:06,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:12:06,178 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 15:12:06,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:12:06,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:12:06,179 INFO L87 Difference]: Start difference. First operand 477 states and 602 transitions. cyclomatic complexity: 128 Second operand 5 states. [2018-11-18 15:12:06,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:12:06,322 INFO L93 Difference]: Finished difference Result 2172 states and 2712 transitions. [2018-11-18 15:12:06,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:12:06,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2172 states and 2712 transitions. [2018-11-18 15:12:06,331 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1518 [2018-11-18 15:12:06,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2172 states to 2172 states and 2712 transitions. [2018-11-18 15:12:06,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2172 [2018-11-18 15:12:06,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2172 [2018-11-18 15:12:06,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2172 states and 2712 transitions. [2018-11-18 15:12:06,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:12:06,341 INFO L705 BuchiCegarLoop]: Abstraction has 2172 states and 2712 transitions. [2018-11-18 15:12:06,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states and 2712 transitions. [2018-11-18 15:12:06,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 940. [2018-11-18 15:12:06,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2018-11-18 15:12:06,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1172 transitions. [2018-11-18 15:12:06,356 INFO L728 BuchiCegarLoop]: Abstraction has 940 states and 1172 transitions. [2018-11-18 15:12:06,356 INFO L608 BuchiCegarLoop]: Abstraction has 940 states and 1172 transitions. [2018-11-18 15:12:06,356 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 15:12:06,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 940 states and 1172 transitions. [2018-11-18 15:12:06,359 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 674 [2018-11-18 15:12:06,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:12:06,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:12:06,360 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:06,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:12:06,361 INFO L794 eck$LassoCheckResult]: Stem: 5997#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(21);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(21);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(30);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(9);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(25);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(30);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(9);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(25);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 44];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 77];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 101];#memory_int := #memory_int[#t~string67.base,3 + #t~string67.offset := 116];#memory_int := #memory_int[#t~string67.base,4 + #t~string67.offset := 104];#memory_int := #memory_int[#t~string67.base,5 + #t~string67.offset := 58];#memory_int := #memory_int[#t~string67.base,6 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 67];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 82];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 73];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 84];#memory_int := #memory_int[#t~string69.base,4 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 79];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 75];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 41];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 5826#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 5816#L877 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5817#L870 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 5892#L885 main_#t~ret62 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret62;havoc main_#t~ret62; 5893#L832 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 5902#L805 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 5903#L703 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, 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; 5912#L270-3 [2018-11-18 15:12:06,361 INFO L796 eck$LassoCheckResult]: Loop: 5912#L270-3 assume true; 6279#L270-1 assume !false; 6278#L271 assume test_~splverifierCounter~0 < 4; 6277#L272 test_~tmp~3 := test_#t~nondet20;havoc test_#t~nondet20; 6275#L280 assume !(0 != test_~tmp~3); 6273#L280-2 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 6271#L290 assume !(0 != test_~tmp___0~1); 6269#L290-2 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 6268#L300 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet23;havoc test_#t~nondet23; 6266#L308 assume !(0 != test_~tmp___1~0); 6267#L308-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret59;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 6308#L174 __utac_acc__Specification5_spec__2_#t~ret59 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret59;havoc __utac_acc__Specification5_spec__2_#t~ret59; 6307#L713 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 6304#L63 assume !(0 != ~pumpRunning~0); 6302#L63-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 6301#L121 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 6171#L95-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 6300#L973-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 5877#L978-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 6298#L223-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 6297#L223-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 6296#L229-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 6295#L99-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 6293#L87-2 assume { :end_inline_processEnvironment__wrappee__base } true; 6289#L95-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6288#L121-1 assume { :end_inline_processEnvironment } true; 6287#L70-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret60, __utac_acc__Specification5_spec__3_#t~ret61, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 6286#L965 __utac_acc__Specification5_spec__3_#t~ret60 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret60;havoc __utac_acc__Specification5_spec__3_#t~ret60; 6285#L724 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 6284#L174-1 __utac_acc__Specification5_spec__3_#t~ret61 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret61;havoc __utac_acc__Specification5_spec__3_#t~ret61; 6283#L728 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 6281#L724-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 6280#L80 assume { :end_inline_timeShift } true; 5912#L270-3 [2018-11-18 15:12:06,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:06,361 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2018-11-18 15:12:06,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:06,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:06,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:06,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:06,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:06,400 INFO L82 PathProgramCache]: Analyzing trace with hash -872136271, now seen corresponding path program 1 times [2018-11-18 15:12:06,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:06,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:06,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,401 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:12:06,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:06,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:12:06,412 INFO L82 PathProgramCache]: Analyzing trace with hash 441278440, now seen corresponding path program 1 times [2018-11-18 15:12:06,413 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:12:06,413 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:12:06,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:12:06,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:12:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:12:06,620 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-11-18 15:13:59,294 WARN L180 SmtUtils]: Spent 1.88 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 15:14:52,092 WARN L180 SmtUtils]: Spent 52.80 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 15:14:52,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 03:14:52 BoogieIcfgContainer [2018-11-18 15:14:52,158 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 15:14:52,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:14:52,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:14:52,159 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:14:52,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:12:05" (3/4) ... [2018-11-18 15:14:52,162 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 15:14:52,213 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a4d013f9-a701-4563-90c8-4476251114c0/bin-2019/uautomizer/witness.graphml [2018-11-18 15:14:52,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:14:52,214 INFO L168 Benchmark]: Toolchain (without parser) took 168327.86 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 340.3 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -245.7 MB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:52,215 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:14:52,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -208.4 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:52,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:52,216 INFO L168 Benchmark]: Boogie Preprocessor took 30.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:52,216 INFO L168 Benchmark]: RCFGBuilder took 698.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 75.4 MB). Peak memory consumption was 75.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:52,216 INFO L168 Benchmark]: BuchiAutomizer took 167092.44 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -119.6 MB). Peak memory consumption was 330.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:14:52,216 INFO L168 Benchmark]: Witness Printer took 55.31 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:14:52,221 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 397.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -208.4 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 698.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 75.4 MB). Peak memory consumption was 75.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 167092.44 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -119.6 MB). Peak memory consumption was 330.4 MB. Max. memory is 11.5 GB. * Witness Printer took 55.31 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 940 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 167.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 166.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2174 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 940 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1110 SDtfs, 2106 SDslu, 2092 SDs, 0 SdLazy, 268 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI4 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: 270]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, "__utac__get_this_arg"=0, ",Pump:"=18, "libacc.c"=27, "libacc.c"=0, retValue_acc=1, "libacc.c"=35, "OK"=38, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, retValue_acc=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_argtype"=26, methaneLevelCritical=0, "Off"=19, tmp=1, tmp___0=0, tmp=0, "Env(Water:%i"=0, "CRIT"=0, retValue_acc=0, ",Meth:"=0, tmp___1=0, "Pump(System:"=0, "Off"=0, "On"=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@663760b4=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, "i > 0 && i <= this->argsCount"=14, "i > 0 && i <= this->argsCount"=11, "Off"=16, \result=0, "__utac__get_this_argtype"=29, NULL=0, systemActive=1, waterLevel=1, "CRIT"=23, \result=1, "Off"=0, "On"=0, "On"=17, \result=0, ",Pump:"=0, "__utac__get_this_arg"=34, "__utac__get_this_arg"=36, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "libacc.c"=0, "__utac__get_this_argtype"=0, "__utac__get_this_argtype"=0, "Pump(System:"=20, \result=1, "\n"=12, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a95fd7d=0, \result=0, "libacc.c"=31, ") "=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ccb797e=0, "i > 0 && i <= this->argsCount"=0, "\n"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a14c6a2=0, \result=1, ",Meth:"=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c8cb18=0, retValue_acc=1, "OK"=0, ")"=0, tmp=1, tmp___2=0, retValue_acc=1, tmp___0=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@507859ca=0, ")"=39, "On"=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73e83f2a=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@385266b3=0, head=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34da282a=0, ") "=15, "libacc.c"=37, "i > 0 && i <= this->argsCount"=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b19c7e5=0, "Env(Water:%i"=24, "i > 0 && i <= this->argsCount"=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43e599bd=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 270]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L183] FCALL "Pump(System:" [L187] FCALL "On" [L191] FCALL "Off" [L195] FCALL ",Pump:" [L199] FCALL "On" [L203] FCALL "Off" [L207] FCALL ") " [L209] FCALL "\n" [L626] FCALL "i > 0 && i <= this->argsCount" [L626] FCALL "libacc.c" [L627] FCALL "__utac__get_this_arg" [L633] FCALL "i > 0 && i <= this->argsCount" [L633] FCALL "libacc.c" [L634] FCALL "__utac__get_this_arg" [L672] FCALL "i > 0 && i <= this->argsCount" [L672] FCALL "libacc.c" [L673] FCALL "__utac__get_this_argtype" [L679] FCALL "i > 0 && i <= this->argsCount" [L679] FCALL "libacc.c" [L680] FCALL "__utac__get_this_argtype" [L942] FCALL "Env(Water:%i" [L943] FCALL ",Meth:" [L947] FCALL "CRIT" [L951] FCALL "OK" [L955] FCALL ")" [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L697] int switchedOnBeforeTS ; [L746] int cleanupTimeShifts = 4; [L890] int waterLevel = 1; [L891] int methaneLevelCritical = 0; [L498] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L823] int retValue_acc ; [L824] int tmp ; [L828] FCALL select_helpers() [L829] FCALL select_features() [L830] CALL, EXPR valid_product() [L881] int retValue_acc ; [L884] retValue_acc = 1 [L885] RET return (retValue_acc); [L830] EXPR valid_product() [L830] tmp = valid_product() [L832] COND TRUE \read(tmp) [L834] FCALL setup() [L835] CALL runTest() [L813] CALL __utac_acc__Specification5_spec__1() [L702] RET switchedOnBeforeTS = 0 [L813] __utac_acc__Specification5_spec__1() [L814] CALL test() [L261] int splverifierCounter ; [L262] int tmp ; [L263] int tmp___0 ; [L264] int tmp___1 ; [L265] int tmp___2 ; [L268] splverifierCounter = 0 Loop: [L270] COND TRUE 1 [L272] COND TRUE splverifierCounter < 4 [L278] tmp = __VERIFIER_nondet_int() [L280] COND FALSE !(\read(tmp)) [L288] tmp___0 = __VERIFIER_nondet_int() [L290] COND FALSE !(\read(tmp___0)) [L298] tmp___2 = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp___2)) [L306] tmp___1 = __VERIFIER_nondet_int() [L308] COND FALSE !(\read(tmp___1)) [L317] CALL timeShift() [L61] CALL __utac_acc__Specification5_spec__2() [L711] CALL, EXPR isPumpRunning() [L170] int retValue_acc ; [L173] retValue_acc = pumpRunning [L174] RET return (retValue_acc); [L711] EXPR isPumpRunning() [L711] RET switchedOnBeforeTS = isPumpRunning() [L61] __utac_acc__Specification5_spec__2() [L63] COND FALSE !(\read(pumpRunning)) [L70] COND TRUE \read(systemActive) [L72] CALL processEnvironment() [L118] int tmp ; [L121] COND FALSE !(\read(pumpRunning)) [L136] CALL processEnvironment__wrappee__highWaterSensor() [L92] int tmp ; [L95] COND TRUE ! pumpRunning [L97] CALL, EXPR isHighWaterLevel() [L215] int retValue_acc ; [L216] int tmp ; [L217] int tmp___0 ; [L221] CALL, EXPR isHighWaterSensorDry() [L970] int retValue_acc ; [L973] COND TRUE waterLevel < 2 [L974] retValue_acc = 1 [L975] RET return (retValue_acc); [L221] EXPR isHighWaterSensorDry() [L221] tmp = isHighWaterSensorDry() [L223] COND TRUE \read(tmp) [L224] tmp___0 = 0 [L228] retValue_acc = tmp___0 [L229] RET return (retValue_acc); [L97] EXPR isHighWaterLevel() [L97] tmp = isHighWaterLevel() [L99] COND FALSE !(\read(tmp)) [L105] RET, FCALL processEnvironment__wrappee__base() [L136] RET processEnvironment__wrappee__highWaterSensor() [L72] processEnvironment() [L78] CALL __utac_acc__Specification5_spec__3() [L717] int tmp ; [L718] int tmp___0 ; [L722] CALL, EXPR getWaterLevel() [L961] int retValue_acc ; [L964] retValue_acc = waterLevel [L965] RET return (retValue_acc); [L722] EXPR getWaterLevel() [L722] tmp = getWaterLevel() [L724] COND TRUE tmp != 2 [L726] CALL, EXPR isPumpRunning() [L170] int retValue_acc ; [L173] retValue_acc = pumpRunning [L174] RET return (retValue_acc); [L726] EXPR isPumpRunning() [L726] tmp___0 = isPumpRunning() [L728] COND FALSE, RET !(\read(tmp___0)) [L78] RET __utac_acc__Specification5_spec__3() [L317] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...