./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product54_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_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product54_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/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 3f1bc34860a9b5a05b4a0969639c999f2a7389fb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:16:56,259 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:16:56,260 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:16:56,268 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:16:56,268 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:16:56,269 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:16:56,270 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:16:56,271 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:16:56,272 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:16:56,272 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:16:56,273 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:16:56,273 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:16:56,274 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:16:56,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:16:56,275 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:16:56,276 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:16:56,277 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:16:56,278 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:16:56,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:16:56,280 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:16:56,281 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:16:56,282 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:16:56,284 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:16:56,284 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:16:56,284 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:16:56,285 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:16:56,286 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:16:56,286 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:16:56,287 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:16:56,288 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:16:56,288 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:16:56,288 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:16:56,289 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:16:56,289 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:16:56,289 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:16:56,290 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:16:56,290 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 17:16:56,300 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:16:56,301 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:16:56,302 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:16:56,302 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:16:56,302 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:16:56,302 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 17:16:56,302 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 17:16:56,302 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 17:16:56,302 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 17:16:56,303 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 17:16:56,303 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 17:16:56,303 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:16:56,303 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:16:56,303 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:16:56,303 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:16:56,303 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:16:56,303 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:16:56,304 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 17:16:56,304 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 17:16:56,304 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 17:16:56,304 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:16:56,304 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:16:56,304 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 17:16:56,304 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:16:56,304 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 17:16:56,305 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:16:56,305 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:16:56,305 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 17:16:56,305 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:16:56,305 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:16:56,305 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 17:16:56,306 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 17:16:56,306 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_9189ee53-3da7-4465-b47a-e4bb7a2712b8/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 -> 3f1bc34860a9b5a05b4a0969639c999f2a7389fb [2018-11-18 17:16:56,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:16:56,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:16:56,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:16:56,343 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:16:56,343 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:16:56,344 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product54_true-unreach-call_false-termination.cil.c [2018-11-18 17:16:56,388 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/data/b57497933/67fcc539ce244256bdd69a5cd1f99734/FLAGd79e497b3 [2018-11-18 17:16:56,824 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:16:56,824 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/sv-benchmarks/c/product-lines/minepump_spec5_product54_true-unreach-call_false-termination.cil.c [2018-11-18 17:16:56,832 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/data/b57497933/67fcc539ce244256bdd69a5cd1f99734/FLAGd79e497b3 [2018-11-18 17:16:56,841 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/data/b57497933/67fcc539ce244256bdd69a5cd1f99734 [2018-11-18 17:16:56,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:16:56,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:16:56,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:16:56,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:16:56,847 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:16:56,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:56" (1/1) ... [2018-11-18 17:16:56,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bea0e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:56, skipping insertion in model container [2018-11-18 17:16:56,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:56" (1/1) ... [2018-11-18 17:16:56,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:16:56,887 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:16:57,090 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:16:57,098 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:16:57,201 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:16:57,222 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:16:57,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57 WrapperNode [2018-11-18 17:16:57,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:16:57,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:16:57,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:16:57,223 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:16:57,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... [2018-11-18 17:16:57,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... [2018-11-18 17:16:57,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:16:57,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:16:57,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:16:57,271 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:16:57,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... [2018-11-18 17:16:57,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... [2018-11-18 17:16:57,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... [2018-11-18 17:16:57,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... [2018-11-18 17:16:57,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... [2018-11-18 17:16:57,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... [2018-11-18 17:16:57,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... [2018-11-18 17:16:57,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:16:57,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:16:57,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:16:57,307 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:16:57,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/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 17:16:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:16:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:16:57,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:16:58,091 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:16:58,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:58 BoogieIcfgContainer [2018-11-18 17:16:58,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:16:58,092 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 17:16:58,092 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 17:16:58,094 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 17:16:58,095 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:16:58,096 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 05:16:56" (1/3) ... [2018-11-18 17:16:58,097 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78fd4f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:16:58, skipping insertion in model container [2018-11-18 17:16:58,097 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:16:58,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:57" (2/3) ... [2018-11-18 17:16:58,097 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78fd4f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:16:58, skipping insertion in model container [2018-11-18 17:16:58,097 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:16:58,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:58" (3/3) ... [2018-11-18 17:16:58,099 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product54_true-unreach-call_false-termination.cil.c [2018-11-18 17:16:58,144 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:16:58,144 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 17:16:58,144 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 17:16:58,144 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 17:16:58,145 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:16:58,145 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:16:58,145 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 17:16:58,145 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:16:58,145 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 17:16:58,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 283 states. [2018-11-18 17:16:58,193 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2018-11-18 17:16:58,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:58,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:58,201 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:58,201 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 17:16:58,201 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 17:16:58,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 283 states. [2018-11-18 17:16:58,209 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2018-11-18 17:16:58,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:58,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:58,210 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:58,210 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 17:16:58,215 INFO L794 eck$LassoCheckResult]: Stem: 107#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(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 79];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 110];#memory_int := #memory_int[#t~string21.base,2 + #t~string21.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string23.base,#t~string23.offset := 79];#memory_int := #memory_int[#t~string23.base,1 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,2 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,3 + #t~string23.offset := 0];call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 44];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 80];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 117];#memory_int := #memory_int[#t~string25.base,3 + #t~string25.offset := 109];#memory_int := #memory_int[#t~string25.base,4 + #t~string25.offset := 112];#memory_int := #memory_int[#t~string25.base,5 + #t~string25.offset := 58];#memory_int := #memory_int[#t~string25.base,6 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 110];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 79];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 41];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 32];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 10];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 188#L640true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 96#L633true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 41#L648true main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 239#L300true assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 243#L272true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 119#L49true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 118#L561-3true [2018-11-18 17:16:58,215 INFO L796 eck$LassoCheckResult]: Loop: 118#L561-3true assume true; 126#L561-1true assume !false; 218#L562true assume test_~splverifierCounter~0 < 4; 167#L563true test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 47#L571true assume !(0 != test_~tmp~7); 26#L571-2true test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 232#L581true assume !(0 != test_~tmp___0~3); 226#L581-2true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 285#L591true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet39;havoc test_#t~nondet39; 6#L599true assume 0 != test_~tmp___1~0; 9#L599-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 175#L464true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 31#L59true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 258#L327true assume !(0 != ~pumpRunning~0); 264#L327-2true assume !(0 != ~systemActive~0); 57#L334-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 85#L174true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 33#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 29#L70-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 233#L344true assume { :end_inline_timeShift } true; 118#L561-3true [2018-11-18 17:16:58,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:58,221 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 17:16:58,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:58,223 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:58,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:58,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:58,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:58,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:58,406 INFO L82 PathProgramCache]: Analyzing trace with hash 700420828, now seen corresponding path program 1 times [2018-11-18 17:16:58,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:58,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:58,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:58,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:58,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:58,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:58,420 INFO L82 PathProgramCache]: Analyzing trace with hash 2072946501, now seen corresponding path program 1 times [2018-11-18 17:16:58,420 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:58,420 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:58,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:58,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:58,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:58,592 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 17:16:58,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:58,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:16:58,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:16:58,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:16:58,760 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 6 states. [2018-11-18 17:16:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:58,926 INFO L93 Difference]: Finished difference Result 280 states and 371 transitions. [2018-11-18 17:16:58,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:16:58,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 280 states and 371 transitions. [2018-11-18 17:16:58,933 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 181 [2018-11-18 17:16:58,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 280 states to 270 states and 361 transitions. [2018-11-18 17:16:58,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 270 [2018-11-18 17:16:58,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 270 [2018-11-18 17:16:58,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 270 states and 361 transitions. [2018-11-18 17:16:58,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:16:58,944 INFO L705 BuchiCegarLoop]: Abstraction has 270 states and 361 transitions. [2018-11-18 17:16:58,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states and 361 transitions. [2018-11-18 17:16:58,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2018-11-18 17:16:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-11-18 17:16:58,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 361 transitions. [2018-11-18 17:16:58,974 INFO L728 BuchiCegarLoop]: Abstraction has 270 states and 361 transitions. [2018-11-18 17:16:58,974 INFO L608 BuchiCegarLoop]: Abstraction has 270 states and 361 transitions. [2018-11-18 17:16:58,974 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 17:16:58,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 361 transitions. [2018-11-18 17:16:58,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 181 [2018-11-18 17:16:58,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:58,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:58,977 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:58,977 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] [2018-11-18 17:16:58,977 INFO L794 eck$LassoCheckResult]: Stem: 737#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(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 79];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 110];#memory_int := #memory_int[#t~string21.base,2 + #t~string21.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string23.base,#t~string23.offset := 79];#memory_int := #memory_int[#t~string23.base,1 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,2 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,3 + #t~string23.offset := 0];call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 44];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 80];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 117];#memory_int := #memory_int[#t~string25.base,3 + #t~string25.offset := 109];#memory_int := #memory_int[#t~string25.base,4 + #t~string25.offset := 112];#memory_int := #memory_int[#t~string25.base,5 + #t~string25.offset := 58];#memory_int := #memory_int[#t~string25.base,6 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 110];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 79];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 41];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 32];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 10];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 594#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 595#L640 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 724#L633 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 650#L648 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 651#L300 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 841#L272 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 757#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 755#L561-3 [2018-11-18 17:16:58,977 INFO L796 eck$LassoCheckResult]: Loop: 755#L561-3 assume true; 756#L561-1 assume !false; 767#L562 assume test_~splverifierCounter~0 < 4; 801#L563 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 658#L571 assume !(0 != test_~tmp~7); 623#L571-2 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 624#L581 assume !(0 != test_~tmp___0~3); 836#L581-2 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 837#L591 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 848#L547 assume { :end_inline_startSystem } true; 587#L599-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 591#L464 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 633#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 634#L327 assume !(0 != ~pumpRunning~0); 823#L327-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 691#L411 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret17, isMethaneAlarm_~retValue_acc~5;havoc isMethaneAlarm_~retValue_acc~5;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 615#L142 isMethaneAlarm_#t~ret17 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5 := isMethaneAlarm_#t~ret17;havoc isMethaneAlarm_#t~ret17;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~5; 616#L455 processEnvironment_#t~ret16 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4 := processEnvironment_#t~ret16;havoc processEnvironment_#t~ret16; 688#L415 assume 0 != processEnvironment_~tmp~4;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 779#L445 assume { :end_inline_deactivatePump } true; 696#L411-1 assume { :end_inline_processEnvironment } true; 674#L334-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 675#L174 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 637#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 629#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 630#L344 assume { :end_inline_timeShift } true; 755#L561-3 [2018-11-18 17:16:58,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:58,978 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 17:16:58,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:58,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:58,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:58,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:58,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:59,021 INFO L82 PathProgramCache]: Analyzing trace with hash -138411580, now seen corresponding path program 1 times [2018-11-18 17:16:59,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:59,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:59,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,023 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:16:59,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:59,048 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 17:16:59,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:59,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:16:59,049 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:16:59,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:16:59,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:16:59,050 INFO L87 Difference]: Start difference. First operand 270 states and 361 transitions. cyclomatic complexity: 93 Second operand 3 states. [2018-11-18 17:16:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:59,207 INFO L93 Difference]: Finished difference Result 292 states and 369 transitions. [2018-11-18 17:16:59,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:16:59,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 292 states and 369 transitions. [2018-11-18 17:16:59,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 202 [2018-11-18 17:16:59,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 292 states to 292 states and 369 transitions. [2018-11-18 17:16:59,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 292 [2018-11-18 17:16:59,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 292 [2018-11-18 17:16:59,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 292 states and 369 transitions. [2018-11-18 17:16:59,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:16:59,217 INFO L705 BuchiCegarLoop]: Abstraction has 292 states and 369 transitions. [2018-11-18 17:16:59,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states and 369 transitions. [2018-11-18 17:16:59,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2018-11-18 17:16:59,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2018-11-18 17:16:59,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 369 transitions. [2018-11-18 17:16:59,227 INFO L728 BuchiCegarLoop]: Abstraction has 292 states and 369 transitions. [2018-11-18 17:16:59,228 INFO L608 BuchiCegarLoop]: Abstraction has 292 states and 369 transitions. [2018-11-18 17:16:59,228 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 17:16:59,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states and 369 transitions. [2018-11-18 17:16:59,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 202 [2018-11-18 17:16:59,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:59,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:59,230 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:59,230 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 17:16:59,231 INFO L794 eck$LassoCheckResult]: Stem: 1275#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(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 79];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 110];#memory_int := #memory_int[#t~string21.base,2 + #t~string21.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string23.base,#t~string23.offset := 79];#memory_int := #memory_int[#t~string23.base,1 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,2 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,3 + #t~string23.offset := 0];call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 44];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 80];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 117];#memory_int := #memory_int[#t~string25.base,3 + #t~string25.offset := 109];#memory_int := #memory_int[#t~string25.base,4 + #t~string25.offset := 112];#memory_int := #memory_int[#t~string25.base,5 + #t~string25.offset := 58];#memory_int := #memory_int[#t~string25.base,6 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 110];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 79];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 41];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 32];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 10];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1162#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 1163#L640 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1263#L633 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1198#L648 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 1199#L300 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 1373#L272 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1291#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1289#L561-3 [2018-11-18 17:16:59,231 INFO L796 eck$LassoCheckResult]: Loop: 1289#L561-3 assume true; 1290#L561-1 assume !false; 1300#L562 assume test_~splverifierCounter~0 < 4; 1334#L563 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 1205#L571 assume !(0 != test_~tmp~7); 1181#L571-2 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 1182#L581 assume !(0 != test_~tmp___0~3); 1367#L581-2 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 1368#L591 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet39;havoc test_#t~nondet39; 1155#L599 assume 0 != test_~tmp___1~0; 1156#L599-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 1161#L464 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 1187#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1188#L327 assume !(0 != ~pumpRunning~0); 1381#L327-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1235#L411 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret15, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 1236#L385-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1297#L359-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1343#L182-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1286#L187-3 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 1287#L513-9 assume !(0 != isHighWaterLevel_~tmp~5);isHighWaterLevel_~tmp___0~1 := 1; 1342#L513-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1317#L519-3 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 1268#L363-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 1149#L351-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1150#L359-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1439#L385-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1310#L411-1 assume { :end_inline_processEnvironment } true; 1417#L334-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1244#L174 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 1191#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 1185#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1186#L344 assume { :end_inline_timeShift } true; 1289#L561-3 [2018-11-18 17:16:59,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:59,231 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 17:16:59,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:59,232 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:59,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:59,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:59,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1951736169, now seen corresponding path program 1 times [2018-11-18 17:16:59,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:59,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:59,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,267 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:16:59,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:59,324 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 17:16:59,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:59,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:16:59,324 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:16:59,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:16:59,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:16:59,325 INFO L87 Difference]: Start difference. First operand 292 states and 369 transitions. cyclomatic complexity: 79 Second operand 5 states. [2018-11-18 17:16:59,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:59,472 INFO L93 Difference]: Finished difference Result 886 states and 1107 transitions. [2018-11-18 17:16:59,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:16:59,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 886 states and 1107 transitions. [2018-11-18 17:16:59,476 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 636 [2018-11-18 17:16:59,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 886 states to 886 states and 1107 transitions. [2018-11-18 17:16:59,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 886 [2018-11-18 17:16:59,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 886 [2018-11-18 17:16:59,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 886 states and 1107 transitions. [2018-11-18 17:16:59,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:16:59,483 INFO L705 BuchiCegarLoop]: Abstraction has 886 states and 1107 transitions. [2018-11-18 17:16:59,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states and 1107 transitions. [2018-11-18 17:16:59,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 319. [2018-11-18 17:16:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2018-11-18 17:16:59,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 396 transitions. [2018-11-18 17:16:59,509 INFO L728 BuchiCegarLoop]: Abstraction has 319 states and 396 transitions. [2018-11-18 17:16:59,509 INFO L608 BuchiCegarLoop]: Abstraction has 319 states and 396 transitions. [2018-11-18 17:16:59,509 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 17:16:59,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 319 states and 396 transitions. [2018-11-18 17:16:59,511 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 220 [2018-11-18 17:16:59,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:59,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:59,511 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:59,511 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 17:16:59,512 INFO L794 eck$LassoCheckResult]: Stem: 2467#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(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 79];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 110];#memory_int := #memory_int[#t~string21.base,2 + #t~string21.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string23.base,#t~string23.offset := 79];#memory_int := #memory_int[#t~string23.base,1 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,2 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,3 + #t~string23.offset := 0];call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 44];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 80];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 117];#memory_int := #memory_int[#t~string25.base,3 + #t~string25.offset := 109];#memory_int := #memory_int[#t~string25.base,4 + #t~string25.offset := 112];#memory_int := #memory_int[#t~string25.base,5 + #t~string25.offset := 58];#memory_int := #memory_int[#t~string25.base,6 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 110];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 79];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 41];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 32];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 10];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2355#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 2356#L640 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2455#L633 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 2392#L648 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 2393#L300 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 2567#L272 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2483#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2481#L561-3 [2018-11-18 17:16:59,512 INFO L796 eck$LassoCheckResult]: Loop: 2481#L561-3 assume true; 2482#L561-1 assume !false; 2492#L562 assume test_~splverifierCounter~0 < 4; 2524#L563 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 2398#L571 assume !(0 != test_~tmp~7); 2371#L571-2 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 2372#L581 assume !(0 != test_~tmp___0~3); 2562#L581-2 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 2563#L591 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2580#L547 assume { :end_inline_startSystem } true; 2346#L599-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 2646#L464 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 2645#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2575#L327 assume !(0 != ~pumpRunning~0); 2576#L327-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 2428#L411 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret15, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 2429#L385-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 2489#L359-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2536#L182-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2478#L187-3 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 2479#L513-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 2535#L513-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 2537#L519-3 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 2586#L363-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 2341#L351-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2342#L359-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2644#L385-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2433#L411-1 assume { :end_inline_processEnvironment } true; 2414#L334-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 2415#L174 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 2384#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 2378#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2379#L344 assume { :end_inline_timeShift } true; 2481#L561-3 [2018-11-18 17:16:59,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:59,512 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 17:16:59,512 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:59,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:59,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:59,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:59,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1702488568, now seen corresponding path program 1 times [2018-11-18 17:16:59,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:59,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:59,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,543 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:16:59,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:59,594 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 17:16:59,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:59,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:16:59,594 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:16:59,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:16:59,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:16:59,595 INFO L87 Difference]: Start difference. First operand 319 states and 396 transitions. cyclomatic complexity: 79 Second operand 5 states. [2018-11-18 17:16:59,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:59,727 INFO L93 Difference]: Finished difference Result 947 states and 1151 transitions. [2018-11-18 17:16:59,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:16:59,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 947 states and 1151 transitions. [2018-11-18 17:16:59,731 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 599 [2018-11-18 17:16:59,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 947 states to 947 states and 1151 transitions. [2018-11-18 17:16:59,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 947 [2018-11-18 17:16:59,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 947 [2018-11-18 17:16:59,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 947 states and 1151 transitions. [2018-11-18 17:16:59,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:16:59,736 INFO L705 BuchiCegarLoop]: Abstraction has 947 states and 1151 transitions. [2018-11-18 17:16:59,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states and 1151 transitions. [2018-11-18 17:16:59,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 628. [2018-11-18 17:16:59,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2018-11-18 17:16:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 765 transitions. [2018-11-18 17:16:59,749 INFO L728 BuchiCegarLoop]: Abstraction has 628 states and 765 transitions. [2018-11-18 17:16:59,749 INFO L608 BuchiCegarLoop]: Abstraction has 628 states and 765 transitions. [2018-11-18 17:16:59,749 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 17:16:59,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 628 states and 765 transitions. [2018-11-18 17:16:59,751 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 438 [2018-11-18 17:16:59,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:16:59,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:16:59,752 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:59,752 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, 1, 1] [2018-11-18 17:16:59,752 INFO L794 eck$LassoCheckResult]: Stem: 3751#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(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(13);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 79];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 110];#memory_int := #memory_int[#t~string21.base,2 + #t~string21.offset := 0];call #t~string23.base, #t~string23.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string23.base,#t~string23.offset := 79];#memory_int := #memory_int[#t~string23.base,1 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,2 + #t~string23.offset := 102];#memory_int := #memory_int[#t~string23.base,3 + #t~string23.offset := 0];call #t~string25.base, #t~string25.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string25.base,#t~string25.offset := 44];#memory_int := #memory_int[#t~string25.base,1 + #t~string25.offset := 80];#memory_int := #memory_int[#t~string25.base,2 + #t~string25.offset := 117];#memory_int := #memory_int[#t~string25.base,3 + #t~string25.offset := 109];#memory_int := #memory_int[#t~string25.base,4 + #t~string25.offset := 112];#memory_int := #memory_int[#t~string25.base,5 + #t~string25.offset := 58];#memory_int := #memory_int[#t~string25.base,6 + #t~string25.offset := 0];call #t~string27.base, #t~string27.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string27.base,#t~string27.offset := 79];#memory_int := #memory_int[#t~string27.base,1 + #t~string27.offset := 110];#memory_int := #memory_int[#t~string27.base,2 + #t~string27.offset := 0];call #t~string29.base, #t~string29.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string29.base,#t~string29.offset := 79];#memory_int := #memory_int[#t~string29.base,1 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,2 + #t~string29.offset := 102];#memory_int := #memory_int[#t~string29.base,3 + #t~string29.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string31.base,#t~string31.offset := 41];#memory_int := #memory_int[#t~string31.base,1 + #t~string31.offset := 32];#memory_int := #memory_int[#t~string31.base,2 + #t~string31.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 10];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 3636#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret13, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 3637#L640 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3736#L633 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 3672#L648 main_#t~ret13 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret13;havoc main_#t~ret13; 3673#L300 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 3853#L272 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3767#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3765#L561-3 [2018-11-18 17:16:59,752 INFO L796 eck$LassoCheckResult]: Loop: 3765#L561-3 assume true; 3766#L561-1 assume !false; 3776#L562 assume test_~splverifierCounter~0 < 4; 3840#L563 test_~tmp~7 := test_#t~nondet36;havoc test_#t~nondet36; 4250#L571 assume !(0 != test_~tmp~7); 4249#L571-2 test_~tmp___0~3 := test_#t~nondet37;havoc test_#t~nondet37; 4247#L581 assume !(0 != test_~tmp___0~3); 4245#L581-2 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 4244#L591 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4242#L547 assume { :end_inline_startSystem } true; 4241#L599-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 4240#L464 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 4239#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4238#L327 assume !(0 != ~pumpRunning~0); 4162#L327-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 4236#L411 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret15, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 4207#L385-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 4234#L359-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret34, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 3833#L182-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 3834#L187-3 isHighWaterLevel_#t~ret34 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret34;havoc isHighWaterLevel_#t~ret34; 4211#L513-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 4210#L513-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 4209#L519-3 processEnvironment__wrappee__highWaterSensor_#t~ret14 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret14;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14; 4208#L363-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2);assume { :begin_inline_processEnvironment__wrappee__base } true; 4205#L351-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4204#L359-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3750#L385-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3716#L411-1 assume { :end_inline_processEnvironment } true; 3695#L334-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 3696#L174 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 3665#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~6;havoc isPumpRunning_~retValue_acc~6;isPumpRunning_~retValue_acc~6 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~6; 3666#L464-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 3814#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 3659#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3660#L344 assume { :end_inline_timeShift } true; 3765#L561-3 [2018-11-18 17:16:59,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:59,753 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2018-11-18 17:16:59,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:59,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:59,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:59,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:59,778 INFO L82 PathProgramCache]: Analyzing trace with hash 271933347, now seen corresponding path program 1 times [2018-11-18 17:16:59,778 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:59,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:59,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,778 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:16:59,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:59,789 INFO L82 PathProgramCache]: Analyzing trace with hash -256914406, now seen corresponding path program 1 times [2018-11-18 17:16:59,789 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:16:59,789 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:16:59,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:59,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:16:59,974 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-11-18 17:18:34,309 WARN L180 SmtUtils]: Spent 1.57 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 17:19:24,029 WARN L180 SmtUtils]: Spent 49.72 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 17:19:24,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 05:19:24 BoogieIcfgContainer [2018-11-18 17:19:24,099 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 17:19:24,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:19:24,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:19:24,100 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:19:24,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:58" (3/4) ... [2018-11-18 17:19:24,102 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 17:19:24,151 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9189ee53-3da7-4465-b47a-e4bb7a2712b8/bin-2019/uautomizer/witness.graphml [2018-11-18 17:19:24,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:19:24,152 INFO L168 Benchmark]: Toolchain (without parser) took 147308.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -99.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:24,153 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:19:24,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -126.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:24,153 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:24,153 INFO L168 Benchmark]: Boogie Preprocessor took 36.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:24,153 INFO L168 Benchmark]: RCFGBuilder took 784.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 983.6 MB in the end (delta: 92.4 MB). Peak memory consumption was 92.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:24,154 INFO L168 Benchmark]: BuchiAutomizer took 146007.56 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Free memory was 983.6 MB in the beginning and 1.1 GB in the end (delta: -78.2 MB). Peak memory consumption was 209.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:24,154 INFO L168 Benchmark]: Witness Printer took 52.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:24,155 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 377.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -126.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 784.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 983.6 MB in the end (delta: 92.4 MB). Peak memory consumption was 92.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 146007.56 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Free memory was 983.6 MB in the beginning and 1.1 GB in the end (delta: -78.2 MB). Peak memory consumption was 209.0 MB. Max. memory is 11.5 GB. * Witness Printer took 52.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 628 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 145.9s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 145.1s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 886 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 628 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1507 SDtfs, 3170 SDslu, 2067 SDs, 0 SdLazy, 302 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 561]: 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, "OK"=31, "libacc.c"=0, "i > 0 && i <= this->argsCount"=36, "libacc.c"=0, "__utac__get_this_arg"=14, methaneLevelCritical=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=0, "\n"=19, tmp=0, "i > 0 && i <= this->argsCount"=8, retValue_acc=0, tmp___1=0, "Off"=22, "Off"=26, ",Meth:"=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33ddf502=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@266e926a=157, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1047dc9a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fffb982=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@589ec47b=0, "Off"=0, "On"=0, waterLevel=1, ")"=0, "libacc.c"=17, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, "__utac__get_this_argtype"=0, "\n"=0, \result=1, "__utac__get_this_arg"=16, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, tmp___0=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72d20c19=0, "__utac__get_this_argtype"=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cae2df2=0, "i > 0 && i <= this->argsCount"=18, head=0, tmp=0, "On"=23, ") "=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bf18740=0, "i > 0 && i <= this->argsCount"=15, "i > 0 && i <= this->argsCount"=0, retValue_acc=0, "__utac__get_this_arg"=0, "libacc.c"=12, "libacc.c"=38, "CRIT"=33, tmp___0=0, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@156547f2=0, tmp=0, tmp=1, "Env(Water:%i"=0, "CRIT"=0, switchedOnBeforeTS=0, ",Pump:"=24, ") "=20, tmp=0, \result=0, ",Pump:"=0, "On"=0, "Off"=0, NULL=0, systemActive=1, "libacc.c"=37, \result=1, ")"=29, \result=0, "OK"=0, "Env(Water:%i"=34, tmp___0=0, \result=0, "On"=27, "Pump(System:"=0, tmp___2=157, splverifierCounter=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e91061=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e93d462=0, ",Meth:"=11, "__utac__get_this_argtype"=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c179fa=0, "Pump(System:"=28, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 561]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L151] FCALL "Env(Water:%i" [L152] FCALL ",Meth:" [L156] FCALL "CRIT" [L160] FCALL "OK" [L164] FCALL ")" [L473] FCALL "Pump(System:" [L477] FCALL "On" [L481] FCALL "Off" [L485] FCALL ",Pump:" [L489] FCALL "On" [L493] FCALL "Off" [L497] FCALL ") " [L499] FCALL "\n" [L950] FCALL "i > 0 && i <= this->argsCount" [L950] FCALL "libacc.c" [L951] FCALL "__utac__get_this_arg" [L957] FCALL "i > 0 && i <= this->argsCount" [L957] FCALL "libacc.c" [L958] FCALL "__utac__get_this_arg" [L996] FCALL "i > 0 && i <= this->argsCount" [L996] FCALL "libacc.c" [L997] FCALL "__utac__get_this_argtype" [L1003] FCALL "i > 0 && i <= this->argsCount" [L1003] FCALL "libacc.c" [L1004] FCALL "__utac__get_this_argtype" [L43] int switchedOnBeforeTS ; [L99] int waterLevel = 1; [L100] int methaneLevelCritical = 0; [L211] int cleanupTimeShifts = 4; [L317] int pumpRunning = 0; [L318] int systemActive = 1; [L822] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L291] int retValue_acc ; [L292] int tmp ; [L296] FCALL select_helpers() [L297] FCALL select_features() [L298] CALL, EXPR valid_product() [L644] int retValue_acc ; [L647] retValue_acc = 1 [L648] RET return (retValue_acc); [L298] EXPR valid_product() [L298] tmp = valid_product() [L300] COND TRUE \read(tmp) [L302] FCALL setup() [L303] CALL runTest() [L281] CALL __utac_acc__Specification5_spec__1() [L48] RET switchedOnBeforeTS = 0 [L281] __utac_acc__Specification5_spec__1() [L282] CALL test() [L552] int splverifierCounter ; [L553] int tmp ; [L554] int tmp___0 ; [L555] int tmp___1 ; [L556] int tmp___2 ; [L559] splverifierCounter = 0 Loop: [L561] COND TRUE 1 [L563] COND TRUE splverifierCounter < 4 [L569] tmp = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp)) [L579] tmp___0 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___0)) [L589] tmp___2 = __VERIFIER_nondet_int() [L591] COND TRUE \read(tmp___2) [L593] CALL startSystem() [L546] RET systemActive = 1 [L593] startSystem() [L606] CALL timeShift() [L325] CALL __utac_acc__Specification5_spec__2() [L57] CALL, EXPR isPumpRunning() [L460] int retValue_acc ; [L463] retValue_acc = pumpRunning [L464] RET return (retValue_acc); [L57] EXPR isPumpRunning() [L57] RET switchedOnBeforeTS = isPumpRunning() [L325] __utac_acc__Specification5_spec__2() [L327] COND FALSE !(\read(pumpRunning)) [L334] COND TRUE \read(systemActive) [L336] CALL processEnvironment() [L408] int tmp ; [L411] COND FALSE !(\read(pumpRunning)) [L426] CALL processEnvironment__wrappee__lowWaterSensor() [L382] int tmp ; [L385] COND FALSE !(\read(pumpRunning)) [L400] CALL processEnvironment__wrappee__highWaterSensor() [L356] int tmp ; [L359] COND TRUE ! pumpRunning [L361] CALL, EXPR isHighWaterLevel() [L505] int retValue_acc ; [L506] int tmp ; [L507] int tmp___0 ; [L511] CALL, EXPR isHighWaterSensorDry() [L179] int retValue_acc ; [L182] COND TRUE waterLevel < 2 [L183] retValue_acc = 1 [L184] RET return (retValue_acc); [L511] EXPR isHighWaterSensorDry() [L511] tmp = isHighWaterSensorDry() [L513] COND TRUE \read(tmp) [L514] tmp___0 = 0 [L518] retValue_acc = tmp___0 [L519] RET return (retValue_acc); [L361] EXPR isHighWaterLevel() [L361] tmp = isHighWaterLevel() [L363] COND FALSE !(\read(tmp)) [L369] RET, FCALL processEnvironment__wrappee__base() [L400] RET processEnvironment__wrappee__highWaterSensor() [L426] RET processEnvironment__wrappee__lowWaterSensor() [L336] processEnvironment() [L342] CALL __utac_acc__Specification5_spec__3() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR getWaterLevel() [L170] int retValue_acc ; [L173] retValue_acc = waterLevel [L174] RET return (retValue_acc); [L68] EXPR getWaterLevel() [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L72] CALL, EXPR isPumpRunning() [L460] int retValue_acc ; [L463] retValue_acc = pumpRunning [L464] RET return (retValue_acc); [L72] EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] COND FALSE, RET !(\read(tmp___0)) [L342] RET __utac_acc__Specification5_spec__3() [L606] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...