./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product46_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_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product46_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/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 484c358b13fd8def6bfbf41b26d96fd32414391c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:24:39,373 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:24:39,375 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:24:39,383 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:24:39,384 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:24:39,384 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:24:39,385 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:24:39,386 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:24:39,388 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:24:39,389 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:24:39,389 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:24:39,390 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:24:39,390 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:24:39,391 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:24:39,392 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:24:39,392 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:24:39,393 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:24:39,394 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:24:39,395 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:24:39,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:24:39,397 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:24:39,398 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:24:39,400 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:24:39,400 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:24:39,400 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:24:39,401 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:24:39,402 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:24:39,402 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:24:39,403 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:24:39,403 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:24:39,404 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:24:39,404 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:24:39,405 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:24:39,405 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:24:39,405 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:24:39,406 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:24:39,406 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 17:24:39,417 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:24:39,418 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:24:39,418 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:24:39,419 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:24:39,419 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:24:39,419 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 17:24:39,419 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 17:24:39,419 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 17:24:39,419 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 17:24:39,420 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 17:24:39,420 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 17:24:39,420 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:24:39,420 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:24:39,420 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:24:39,420 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:24:39,420 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:24:39,420 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:24:39,421 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 17:24:39,421 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 17:24:39,421 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 17:24:39,421 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:24:39,421 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:24:39,421 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 17:24:39,421 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:24:39,421 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 17:24:39,422 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:24:39,422 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:24:39,422 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 17:24:39,422 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:24:39,422 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:24:39,422 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 17:24:39,423 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 17:24:39,423 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_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/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 -> 484c358b13fd8def6bfbf41b26d96fd32414391c [2018-11-18 17:24:39,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:24:39,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:24:39,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:24:39,455 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:24:39,455 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:24:39,456 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product46_true-unreach-call_false-termination.cil.c [2018-11-18 17:24:39,492 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/data/9608023e9/c72cf696dfcc4c3baa9b8fb5fb4b8e49/FLAGe9c2195ca [2018-11-18 17:24:39,933 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:24:39,934 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/sv-benchmarks/c/product-lines/minepump_spec5_product46_true-unreach-call_false-termination.cil.c [2018-11-18 17:24:39,944 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/data/9608023e9/c72cf696dfcc4c3baa9b8fb5fb4b8e49/FLAGe9c2195ca [2018-11-18 17:24:39,954 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/data/9608023e9/c72cf696dfcc4c3baa9b8fb5fb4b8e49 [2018-11-18 17:24:39,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:24:39,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:24:39,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:24:39,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:24:39,961 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:24:39,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:24:39" (1/1) ... [2018-11-18 17:24:39,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:39, skipping insertion in model container [2018-11-18 17:24:39,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:24:39" (1/1) ... [2018-11-18 17:24:39,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:24:40,000 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:24:40,192 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:24:40,200 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:24:40,292 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:24:40,308 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:24:40,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40 WrapperNode [2018-11-18 17:24:40,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:24:40,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:24:40,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:24:40,308 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:24:40,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... [2018-11-18 17:24:40,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... [2018-11-18 17:24:40,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:24:40,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:24:40,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:24:40,346 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:24:40,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... [2018-11-18 17:24:40,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... [2018-11-18 17:24:40,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... [2018-11-18 17:24:40,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... [2018-11-18 17:24:40,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... [2018-11-18 17:24:40,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... [2018-11-18 17:24:40,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... [2018-11-18 17:24:40,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:24:40,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:24:40,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:24:40,371 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:24:40,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/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 17:24:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:24:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:24:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:24:40,978 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:24:40,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:24:40 BoogieIcfgContainer [2018-11-18 17:24:40,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:24:40,979 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 17:24:40,979 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 17:24:40,981 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 17:24:40,982 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:24:40,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 05:24:39" (1/3) ... [2018-11-18 17:24:40,982 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46f3cf01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:24:40, skipping insertion in model container [2018-11-18 17:24:40,982 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:24:40,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:24:40" (2/3) ... [2018-11-18 17:24:40,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46f3cf01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:24:40, skipping insertion in model container [2018-11-18 17:24:40,983 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:24:40,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:24:40" (3/3) ... [2018-11-18 17:24:40,984 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product46_true-unreach-call_false-termination.cil.c [2018-11-18 17:24:41,021 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:24:41,022 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 17:24:41,022 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 17:24:41,022 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 17:24:41,022 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:24:41,022 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:24:41,022 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 17:24:41,023 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:24:41,023 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 17:24:41,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states. [2018-11-18 17:24:41,055 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-18 17:24:41,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:41,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:41,061 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:41,061 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 17:24:41,061 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 17:24:41,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states. [2018-11-18 17:24:41,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-18 17:24:41,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:41,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:41,067 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:41,067 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 17:24:41,070 INFO L794 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 44];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 77];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 101];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 116];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 104];#memory_int := #memory_int[#t~string42.base,5 + #t~string42.offset := 58];#memory_int := #memory_int[#t~string42.base,6 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 67];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 82];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 73];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 84];#memory_int := #memory_int[#t~string44.base,4 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 75];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 41];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 14#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 82#L683true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3#L676true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 169#L691true main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 140#L183true assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 143#L155true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 107#L49true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 109#L924-3true [2018-11-18 17:24:41,070 INFO L796 eck$LassoCheckResult]: Loop: 109#L924-3true assume true; 117#L924-1true assume !false; 87#L925true assume test_~splverifierCounter~0 < 4; 139#L926true test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 58#L934true assume !(0 != test_~tmp~9); 36#L934-2true test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 186#L944true assume !(0 != test_~tmp___0~2); 175#L944-2true test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 131#L954true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet74;havoc test_#t~nondet74; 21#L962true assume 0 != test_~tmp___1~0; 22#L962-2true 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~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 38#L846true __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; 19#L59true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 187#L718true assume !(0 != ~pumpRunning~0); 188#L718-2true assume !(0 != ~systemActive~0); 23#L725-1true 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~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 62#L642true __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; 20#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 18#L70-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 180#L735true assume { :end_inline_timeShift } true; 109#L924-3true [2018-11-18 17:24:41,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:41,074 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 17:24:41,075 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:41,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:41,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:41,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:41,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:41,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1977875612, now seen corresponding path program 1 times [2018-11-18 17:24:41,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:41,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:41,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:41,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:41,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:41,236 INFO L82 PathProgramCache]: Analyzing trace with hash -944566011, now seen corresponding path program 1 times [2018-11-18 17:24:41,236 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:41,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:41,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:41,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:24:41,372 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 17:24:41,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:24:41,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:24:41,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:24:41,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:24:41,479 INFO L87 Difference]: Start difference. First operand 193 states. Second operand 6 states. [2018-11-18 17:24:41,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:41,605 INFO L93 Difference]: Finished difference Result 190 states and 245 transitions. [2018-11-18 17:24:41,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:24:41,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 245 transitions. [2018-11-18 17:24:41,613 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2018-11-18 17:24:41,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 180 states and 235 transitions. [2018-11-18 17:24:41,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 180 [2018-11-18 17:24:41,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 180 [2018-11-18 17:24:41,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 180 states and 235 transitions. [2018-11-18 17:24:41,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:41,621 INFO L705 BuchiCegarLoop]: Abstraction has 180 states and 235 transitions. [2018-11-18 17:24:41,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states and 235 transitions. [2018-11-18 17:24:41,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2018-11-18 17:24:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-11-18 17:24:41,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 235 transitions. [2018-11-18 17:24:41,648 INFO L728 BuchiCegarLoop]: Abstraction has 180 states and 235 transitions. [2018-11-18 17:24:41,648 INFO L608 BuchiCegarLoop]: Abstraction has 180 states and 235 transitions. [2018-11-18 17:24:41,649 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 17:24:41,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 180 states and 235 transitions. [2018-11-18 17:24:41,651 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2018-11-18 17:24:41,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:41,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:41,652 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:41,652 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:41,652 INFO L794 eck$LassoCheckResult]: Stem: 575#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 44];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 77];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 101];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 116];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 104];#memory_int := #memory_int[#t~string42.base,5 + #t~string42.offset := 58];#memory_int := #memory_int[#t~string42.base,6 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 67];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 82];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 73];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 84];#memory_int := #memory_int[#t~string44.base,4 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 75];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 41];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 427#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 428#L683 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 406#L676 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 407#L691 main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 477#L183 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 478#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 498#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 573#L924-3 [2018-11-18 17:24:41,653 INFO L796 eck$LassoCheckResult]: Loop: 573#L924-3 assume true; 580#L924-1 assume !false; 566#L925 assume test_~splverifierCounter~0 < 4; 469#L926 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 470#L934 assume !(0 != test_~tmp~9); 434#L934-2 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 492#L944 assume !(0 != test_~tmp___0~2); 571#L944-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 442#L954 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 408#L910 assume { :end_inline_startSystem } true; 409#L962-2 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~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 458#L846 __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; 451#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 452#L718 assume !(0 != ~pumpRunning~0); 549#L718-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 577#L776 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 456#L750-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 410#L742-3 assume { :end_inline_processEnvironment__wrappee__base } true; 402#L750-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 453#L776-1 assume { :end_inline_processEnvironment } true; 461#L725-1 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~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 462#L642 __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; 454#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 449#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 450#L735 assume { :end_inline_timeShift } true; 573#L924-3 [2018-11-18 17:24:41,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:41,653 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 17:24:41,653 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:41,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:41,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:41,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:41,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:41,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1327277517, now seen corresponding path program 1 times [2018-11-18 17:24:41,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:41,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:41,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,699 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:41,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:24:41,720 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 17:24:41,721 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:24:41,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:24:41,721 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:24:41,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:24:41,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:24:41,722 INFO L87 Difference]: Start difference. First operand 180 states and 235 transitions. cyclomatic complexity: 57 Second operand 3 states. [2018-11-18 17:24:41,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:41,830 INFO L93 Difference]: Finished difference Result 253 states and 318 transitions. [2018-11-18 17:24:41,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:24:41,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 253 states and 318 transitions. [2018-11-18 17:24:41,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2018-11-18 17:24:41,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 253 states to 253 states and 318 transitions. [2018-11-18 17:24:41,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 253 [2018-11-18 17:24:41,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 253 [2018-11-18 17:24:41,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 253 states and 318 transitions. [2018-11-18 17:24:41,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:41,837 INFO L705 BuchiCegarLoop]: Abstraction has 253 states and 318 transitions. [2018-11-18 17:24:41,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states and 318 transitions. [2018-11-18 17:24:41,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2018-11-18 17:24:41,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-11-18 17:24:41,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 318 transitions. [2018-11-18 17:24:41,846 INFO L728 BuchiCegarLoop]: Abstraction has 253 states and 318 transitions. [2018-11-18 17:24:41,847 INFO L608 BuchiCegarLoop]: Abstraction has 253 states and 318 transitions. [2018-11-18 17:24:41,847 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 17:24:41,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 318 transitions. [2018-11-18 17:24:41,848 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2018-11-18 17:24:41,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:41,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:41,849 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:41,850 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:41,850 INFO L794 eck$LassoCheckResult]: Stem: 1019#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 44];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 77];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 101];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 116];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 104];#memory_int := #memory_int[#t~string42.base,5 + #t~string42.offset := 58];#memory_int := #memory_int[#t~string42.base,6 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 67];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 82];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 73];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 84];#memory_int := #memory_int[#t~string44.base,4 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 75];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 41];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 864#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 865#L683 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 840#L676 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 841#L691 main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 915#L183 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 916#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 936#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1016#L924-3 [2018-11-18 17:24:41,850 INFO L796 eck$LassoCheckResult]: Loop: 1016#L924-3 assume true; 1026#L924-1 assume !false; 1009#L925 assume test_~splverifierCounter~0 < 4; 905#L926 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 906#L934 assume !(0 != test_~tmp~9); 871#L934-2 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 928#L944 assume !(0 != test_~tmp___0~2); 1013#L944-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 880#L954 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet74;havoc test_#t~nondet74; 881#L962 assume 0 != test_~tmp___1~0; 847#L962-2 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~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 896#L846 __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; 889#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 890#L718 assume !(0 != ~pumpRunning~0); 1024#L718-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1021#L776 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 894#L750-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 895#L650-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 972#L655-1 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 986#L895-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 987#L895-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 929#L901-1 processEnvironment__wrappee__methaneQuery_#t~ret50 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret50;havoc processEnvironment__wrappee__methaneQuery_#t~ret50; 930#L754-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 842#L742-2 assume { :end_inline_processEnvironment__wrappee__base } true; 843#L750-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 893#L776-1 assume { :end_inline_processEnvironment } true; 899#L725-1 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~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 900#L642 __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; 891#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 885#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 886#L735 assume { :end_inline_timeShift } true; 1016#L924-3 [2018-11-18 17:24:41,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:41,851 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 17:24:41,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:41,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:41,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:41,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:41,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:41,886 INFO L82 PathProgramCache]: Analyzing trace with hash -963529820, now seen corresponding path program 1 times [2018-11-18 17:24:41,886 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:41,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:41,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,887 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:41,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:24:41,936 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 17:24:41,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:24:41,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:24:41,937 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:24:41,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:24:41,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:24:41,938 INFO L87 Difference]: Start difference. First operand 253 states and 318 transitions. cyclomatic complexity: 67 Second operand 5 states. [2018-11-18 17:24:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:24:42,091 INFO L93 Difference]: Finished difference Result 727 states and 897 transitions. [2018-11-18 17:24:42,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:24:42,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 727 states and 897 transitions. [2018-11-18 17:24:42,100 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 467 [2018-11-18 17:24:42,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 727 states to 727 states and 897 transitions. [2018-11-18 17:24:42,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 727 [2018-11-18 17:24:42,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 727 [2018-11-18 17:24:42,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 727 states and 897 transitions. [2018-11-18 17:24:42,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:24:42,108 INFO L705 BuchiCegarLoop]: Abstraction has 727 states and 897 transitions. [2018-11-18 17:24:42,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states and 897 transitions. [2018-11-18 17:24:42,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 496. [2018-11-18 17:24:42,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2018-11-18 17:24:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 612 transitions. [2018-11-18 17:24:42,125 INFO L728 BuchiCegarLoop]: Abstraction has 496 states and 612 transitions. [2018-11-18 17:24:42,125 INFO L608 BuchiCegarLoop]: Abstraction has 496 states and 612 transitions. [2018-11-18 17:24:42,125 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 17:24:42,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 496 states and 612 transitions. [2018-11-18 17:24:42,128 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 350 [2018-11-18 17:24:42,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:24:42,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:24:42,129 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:24:42,129 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 17:24:42,129 INFO L794 eck$LassoCheckResult]: Stem: 2029#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 44];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 77];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 101];#memory_int := #memory_int[#t~string42.base,3 + #t~string42.offset := 116];#memory_int := #memory_int[#t~string42.base,4 + #t~string42.offset := 104];#memory_int := #memory_int[#t~string42.base,5 + #t~string42.offset := 58];#memory_int := #memory_int[#t~string42.base,6 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 67];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 82];#memory_int := #memory_int[#t~string44.base,2 + #t~string44.offset := 73];#memory_int := #memory_int[#t~string44.base,3 + #t~string44.offset := 84];#memory_int := #memory_int[#t~string44.base,4 + #t~string44.offset := 0];call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string46.base,#t~string46.offset := 79];#memory_int := #memory_int[#t~string46.base,1 + #t~string46.offset := 75];#memory_int := #memory_int[#t~string46.base,2 + #t~string46.offset := 0];call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string48.base,#t~string48.offset := 41];#memory_int := #memory_int[#t~string48.base,1 + #t~string48.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 80];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 117];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 109];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 112];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 110];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 102];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 32];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 10];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1860#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 1861#L683 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1836#L676 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1837#L691 main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 1915#L183 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 1916#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1938#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2026#L924-3 [2018-11-18 17:24:42,130 INFO L796 eck$LassoCheckResult]: Loop: 2026#L924-3 assume true; 2041#L924-1 assume !false; 2013#L925 assume test_~splverifierCounter~0 < 4; 2014#L926 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 2331#L934 assume !(0 != test_~tmp~9); 2330#L934-2 test_~tmp___0~2 := test_#t~nondet72;havoc test_#t~nondet72; 2328#L944 assume !(0 != test_~tmp___0~2); 2326#L944-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 1877#L954 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1842#L910 assume { :end_inline_startSystem } true; 1843#L962-2 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~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 2311#L846 __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; 2309#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2305#L718 assume !(0 != ~pumpRunning~0); 2278#L718-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2031#L776 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret50, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1892#L750-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1893#L650-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1975#L655-1 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 2270#L895-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2268#L895-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 2265#L901-1 processEnvironment__wrappee__methaneQuery_#t~ret50 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret50;havoc processEnvironment__wrappee__methaneQuery_#t~ret50; 2262#L754-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 2263#L742-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2295#L750-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2292#L776-1 assume { :end_inline_processEnvironment } true; 1899#L725-1 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~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1900#L642 __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; 1889#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1890#L846-1 __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; 1939#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1883#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1884#L735 assume { :end_inline_timeShift } true; 2026#L924-3 [2018-11-18 17:24:42,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:42,130 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 17:24:42,130 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:42,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:42,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:42,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:42,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:42,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:42,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1795619616, now seen corresponding path program 1 times [2018-11-18 17:24:42,166 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:42,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:42,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:42,167 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:24:42,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:42,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:24:42,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1185932969, now seen corresponding path program 1 times [2018-11-18 17:24:42,178 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:24:42,178 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:24:42,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:42,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:24:42,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:24:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:24:42,341 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-11-18 17:26:24,878 WARN L180 SmtUtils]: Spent 1.71 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 17:27:20,381 WARN L180 SmtUtils]: Spent 55.50 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 17:27:20,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 05:27:20 BoogieIcfgContainer [2018-11-18 17:27:20,443 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 17:27:20,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:27:20,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:27:20,443 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:27:20,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:24:40" (3/4) ... [2018-11-18 17:27:20,446 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 17:27:20,490 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a71fc845-bd5e-4c24-83cb-ac4470a07e4e/bin-2019/uautomizer/witness.graphml [2018-11-18 17:27:20,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:27:20,491 INFO L168 Benchmark]: Toolchain (without parser) took 160533.79 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.8 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 73.9 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:20,492 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:27:20,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -196.8 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:20,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:20,492 INFO L168 Benchmark]: Boogie Preprocessor took 25.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:20,493 INFO L168 Benchmark]: RCFGBuilder took 607.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 87.7 MB). Peak memory consumption was 87.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:20,494 INFO L168 Benchmark]: BuchiAutomizer took 159463.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -47.1 MB). Peak memory consumption was 294.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:20,494 INFO L168 Benchmark]: Witness Printer took 47.44 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:20,496 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 349.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -196.8 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 607.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 87.7 MB). Peak memory consumption was 87.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 159463.91 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -47.1 MB). Peak memory consumption was 294.3 MB. Max. memory is 11.5 GB. * Witness Printer took 47.44 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 496 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 159.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 158.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 231 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 496 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 814 SDtfs, 1682 SDslu, 876 SDs, 0 SdLazy, 127 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 924]: 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, "Pump(System:"=36, "On"=0, retValue_acc=0, "OK"=0, "OK"=38, "Env(Water:%i"=0, "CRIT"=0, ",Pump:"=0, "On"=31, ",Meth:"=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@178ada15=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21c2b9b9=0, "Off"=0, "\n"=0, "__utac__get_this_argtype"=11, ") "=0, tmp___1=0, tmp=0, tmp=1, "libacc.c"=18, "__utac__get_this_argtype"=24, retValue_acc=0, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=27, switchedOnBeforeTS=0, "i > 0 && i <= this->argsCount"=16, "i > 0 && i <= this->argsCount"=12, ",Meth:"=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48eea871=0, \result=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_arg"=0, NULL=0, systemActive=1, waterLevel=1, "\n"=39, \result=1, "libacc.c"=0, \result=0, "CRIT"=22, "Pump(System:"=0, "On"=0, tmp___0=0, \result=1, head=0, pumpRunning=0, "On"=35, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65144ca1=0, "__utac__get_this_argtype"=0, tmp=1, "libacc.c"=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=26, \result=1, ")"=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5eb833c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25aeddac=167, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@229b54c3=0, ") "=29, ",Pump:"=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68d4b0cc=0, "i > 0 && i <= this->argsCount"=19, retValue_acc=1, retValue_acc=0, tmp=1, tmp___2=167, tmp___0=0, "libacc.c"=15, retValue_acc=1, splverifierCounter=0, "Off"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c75b4c4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e083d34=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76395dfe=0, "Off"=34, head=0, "libacc.c"=0, "__utac__get_this_arg"=17, "__utac__get_this_arg"=0, tmp=0, "__utac__get_this_arg"=14, "libacc.c"=8, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "Env(Water:%i"=23, ")"=0, "Off"=28, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 924]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L494] FCALL "i > 0 && i <= this->argsCount" [L494] FCALL "libacc.c" [L495] FCALL "__utac__get_this_arg" [L501] FCALL "i > 0 && i <= this->argsCount" [L501] FCALL "libacc.c" [L502] FCALL "__utac__get_this_arg" [L540] FCALL "i > 0 && i <= this->argsCount" [L540] FCALL "libacc.c" [L541] FCALL "__utac__get_this_argtype" [L547] FCALL "i > 0 && i <= this->argsCount" [L547] FCALL "libacc.c" [L548] FCALL "__utac__get_this_argtype" [L619] FCALL "Env(Water:%i" [L620] FCALL ",Meth:" [L624] FCALL "CRIT" [L628] FCALL "OK" [L632] FCALL ")" [L855] FCALL "Pump(System:" [L859] FCALL "On" [L863] FCALL "Off" [L867] FCALL ",Pump:" [L871] FCALL "On" [L875] FCALL "Off" [L879] FCALL ") " [L881] FCALL "\n" [L43] int switchedOnBeforeTS ; [L92] int cleanupTimeShifts = 4; [L567] int waterLevel = 1; [L568] int methaneLevelCritical = 0; [L708] int pumpRunning = 0; [L709] int systemActive = 1; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L174] int retValue_acc ; [L175] int tmp ; [L179] FCALL select_helpers() [L180] FCALL select_features() [L181] CALL, EXPR valid_product() [L687] int retValue_acc ; [L690] retValue_acc = 1 [L691] RET return (retValue_acc); [L181] EXPR valid_product() [L181] tmp = valid_product() [L183] COND TRUE \read(tmp) [L185] FCALL setup() [L186] CALL runTest() [L164] CALL __utac_acc__Specification5_spec__1() [L48] RET switchedOnBeforeTS = 0 [L164] __utac_acc__Specification5_spec__1() [L165] CALL test() [L915] int splverifierCounter ; [L916] int tmp ; [L917] int tmp___0 ; [L918] int tmp___1 ; [L919] int tmp___2 ; [L922] splverifierCounter = 0 Loop: [L924] COND TRUE 1 [L926] COND TRUE splverifierCounter < 4 [L932] tmp = __VERIFIER_nondet_int() [L934] COND FALSE !(\read(tmp)) [L942] tmp___0 = __VERIFIER_nondet_int() [L944] COND FALSE !(\read(tmp___0)) [L952] tmp___2 = __VERIFIER_nondet_int() [L954] COND TRUE \read(tmp___2) [L956] CALL startSystem() [L909] RET systemActive = 1 [L956] startSystem() [L969] CALL timeShift() [L716] CALL __utac_acc__Specification5_spec__2() [L57] CALL, EXPR isPumpRunning() [L842] int retValue_acc ; [L845] retValue_acc = pumpRunning [L846] RET return (retValue_acc); [L57] EXPR isPumpRunning() [L57] RET switchedOnBeforeTS = isPumpRunning() [L716] __utac_acc__Specification5_spec__2() [L718] COND FALSE !(\read(pumpRunning)) [L725] COND TRUE \read(systemActive) [L727] CALL processEnvironment() [L773] int tmp ; [L776] COND FALSE !(\read(pumpRunning)) [L791] CALL processEnvironment__wrappee__methaneQuery() [L747] int tmp ; [L750] COND TRUE ! pumpRunning [L752] CALL, EXPR isHighWaterLevel() [L887] int retValue_acc ; [L888] int tmp ; [L889] int tmp___0 ; [L893] CALL, EXPR isHighWaterSensorDry() [L647] int retValue_acc ; [L650] COND TRUE waterLevel < 2 [L651] retValue_acc = 1 [L652] RET return (retValue_acc); [L893] EXPR isHighWaterSensorDry() [L893] tmp = isHighWaterSensorDry() [L895] COND TRUE \read(tmp) [L896] tmp___0 = 0 [L900] retValue_acc = tmp___0 [L901] RET return (retValue_acc); [L752] EXPR isHighWaterLevel() [L752] tmp = isHighWaterLevel() [L754] COND FALSE !(\read(tmp)) [L760] RET, FCALL processEnvironment__wrappee__base() [L791] RET processEnvironment__wrappee__methaneQuery() [L727] processEnvironment() [L733] CALL __utac_acc__Specification5_spec__3() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR getWaterLevel() [L638] int retValue_acc ; [L641] retValue_acc = waterLevel [L642] RET return (retValue_acc); [L68] EXPR getWaterLevel() [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L72] CALL, EXPR isPumpRunning() [L842] int retValue_acc ; [L845] retValue_acc = pumpRunning [L846] RET return (retValue_acc); [L72] EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] COND FALSE, RET !(\read(tmp___0)) [L733] RET __utac_acc__Specification5_spec__3() [L969] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...