./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product49_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_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product49_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/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 c3f15e5f0b48b2733d67e168986a8e79f37fa442 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:11:09,397 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:11:09,398 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:11:09,406 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:11:09,407 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:11:09,407 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:11:09,408 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:11:09,409 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:11:09,410 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:11:09,411 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:11:09,412 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:11:09,412 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:11:09,412 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:11:09,413 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:11:09,414 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:11:09,414 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:11:09,415 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:11:09,416 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:11:09,417 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:11:09,418 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:11:09,419 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:11:09,420 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:11:09,421 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:11:09,421 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:11:09,421 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:11:09,422 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:11:09,423 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:11:09,423 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:11:09,424 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:11:09,424 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:11:09,424 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:11:09,425 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:11:09,425 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:11:09,425 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:11:09,426 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:11:09,426 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:11:09,426 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 09:11:09,436 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:11:09,436 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:11:09,437 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:11:09,437 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:11:09,437 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:11:09,438 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 09:11:09,438 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 09:11:09,438 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 09:11:09,438 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 09:11:09,438 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 09:11:09,438 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 09:11:09,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:11:09,438 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:11:09,439 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:11:09,439 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:11:09,439 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:11:09,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:11:09,439 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 09:11:09,439 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 09:11:09,439 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 09:11:09,439 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:11:09,439 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:11:09,440 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 09:11:09,440 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:11:09,440 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 09:11:09,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:11:09,440 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:11:09,440 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 09:11:09,440 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:11:09,441 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:11:09,441 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 09:11:09,441 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 09:11:09,441 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_fdff13ef-d6de-45c5-a529-681bee981650/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 -> c3f15e5f0b48b2733d67e168986a8e79f37fa442 [2018-11-18 09:11:09,467 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:11:09,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:11:09,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:11:09,480 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:11:09,480 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:11:09,480 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product49_true-unreach-call_false-termination.cil.c [2018-11-18 09:11:09,527 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/data/764fafc34/8648c93394b6418482563a870ecd8e1c/FLAGb09a50b6b [2018-11-18 09:11:09,910 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:11:09,910 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/sv-benchmarks/c/product-lines/minepump_spec5_product49_true-unreach-call_false-termination.cil.c [2018-11-18 09:11:09,920 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/data/764fafc34/8648c93394b6418482563a870ecd8e1c/FLAGb09a50b6b [2018-11-18 09:11:09,932 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/data/764fafc34/8648c93394b6418482563a870ecd8e1c [2018-11-18 09:11:09,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:11:09,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:11:09,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:11:09,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:11:09,939 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:11:09,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:11:09" (1/1) ... [2018-11-18 09:11:09,942 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 09:11:09, skipping insertion in model container [2018-11-18 09:11:09,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:11:09" (1/1) ... [2018-11-18 09:11:09,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:11:09,981 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:11:10,208 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:11:10,217 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:11:10,320 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:11:10,341 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:11:10,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10 WrapperNode [2018-11-18 09:11:10,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:11:10,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:11:10,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:11:10,342 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:11:10,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... [2018-11-18 09:11:10,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... [2018-11-18 09:11:10,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:11:10,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:11:10,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:11:10,391 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:11:10,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... [2018-11-18 09:11:10,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... [2018-11-18 09:11:10,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... [2018-11-18 09:11:10,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... [2018-11-18 09:11:10,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... [2018-11-18 09:11:10,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... [2018-11-18 09:11:10,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... [2018-11-18 09:11:10,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:11:10,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:11:10,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:11:10,426 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:11:10,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/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 09:11:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:11:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:11:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:11:11,051 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:11:11,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:11 BoogieIcfgContainer [2018-11-18 09:11:11,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:11:11,052 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 09:11:11,053 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 09:11:11,055 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 09:11:11,056 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:11:11,056 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:11:09" (1/3) ... [2018-11-18 09:11:11,057 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a579b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:11:11, skipping insertion in model container [2018-11-18 09:11:11,057 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:11:11,057 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:10" (2/3) ... [2018-11-18 09:11:11,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a579b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:11:11, skipping insertion in model container [2018-11-18 09:11:11,058 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:11:11,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:11" (3/3) ... [2018-11-18 09:11:11,059 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product49_true-unreach-call_false-termination.cil.c [2018-11-18 09:11:11,095 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:11:11,095 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 09:11:11,095 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 09:11:11,095 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 09:11:11,095 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:11:11,095 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:11:11,096 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 09:11:11,096 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:11:11,096 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 09:11:11,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states. [2018-11-18 09:11:11,132 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2018-11-18 09:11:11,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:11:11,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:11:11,139 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:11:11,139 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] [2018-11-18 09:11:11,139 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 09:11:11,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states. [2018-11-18 09:11:11,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2018-11-18 09:11:11,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:11:11,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:11:11,145 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:11:11,145 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] [2018-11-18 09:11:11,149 INFO L794 eck$LassoCheckResult]: Stem: 109#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(13);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 44];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 77];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 101];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 116];#memory_int := #memory_int[#t~string28.base,4 + #t~string28.offset := 104];#memory_int := #memory_int[#t~string28.base,5 + #t~string28.offset := 58];#memory_int := #memory_int[#t~string28.base,6 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 67];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 82];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 73];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 84];#memory_int := #memory_int[#t~string30.base,4 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 79];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 75];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 41];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 15#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 104#L556true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 43#L549true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 108#L564true main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 110#L520true assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 156#L492true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 119#L941true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 48#L265-3true [2018-11-18 09:11:11,150 INFO L796 eck$LassoCheckResult]: Loop: 48#L265-3true assume true; 52#L265-1true assume !false; 17#L266true assume test_~splverifierCounter~0 < 4; 111#L267true test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 106#L275true assume !(0 != test_~tmp~4); 101#L275-2true test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 11#L285true assume !(0 != test_~tmp___0~2); 6#L285-2true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 70#L295true assume 0 != test_~tmp___2~0; 57#L301-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret72;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 145#L173true __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 33#L951true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 13#L62true assume !(0 != ~pumpRunning~0); 9#L62-2true assume !(0 != ~systemActive~0); 98#L69-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 123#L396true __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 32#L962true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 35#L962-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 152#L79true assume { :end_inline_timeShift } true; 48#L265-3true [2018-11-18 09:11:11,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:11,155 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 09:11:11,157 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:11,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:11,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:11:11,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:11,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:11,371 INFO L82 PathProgramCache]: Analyzing trace with hash -951284227, now seen corresponding path program 1 times [2018-11-18 09:11:11,371 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:11,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:11,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:11:11,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:11,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:11,385 INFO L82 PathProgramCache]: Analyzing trace with hash 478464116, now seen corresponding path program 1 times [2018-11-18 09:11:11,385 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:11,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:11,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:11:11,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:11:11,512 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 09:11:11,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:11:11,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:11:11,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:11:11,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:11:11,604 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 6 states. [2018-11-18 09:11:11,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:11:11,735 INFO L93 Difference]: Finished difference Result 171 states and 223 transitions. [2018-11-18 09:11:11,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:11:11,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 223 transitions. [2018-11-18 09:11:11,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2018-11-18 09:11:11,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 161 states and 213 transitions. [2018-11-18 09:11:11,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 161 [2018-11-18 09:11:11,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 161 [2018-11-18 09:11:11,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 161 states and 213 transitions. [2018-11-18 09:11:11,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:11:11,750 INFO L705 BuchiCegarLoop]: Abstraction has 161 states and 213 transitions. [2018-11-18 09:11:11,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states and 213 transitions. [2018-11-18 09:11:11,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2018-11-18 09:11:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-11-18 09:11:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 213 transitions. [2018-11-18 09:11:11,777 INFO L728 BuchiCegarLoop]: Abstraction has 161 states and 213 transitions. [2018-11-18 09:11:11,777 INFO L608 BuchiCegarLoop]: Abstraction has 161 states and 213 transitions. [2018-11-18 09:11:11,777 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 09:11:11,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 213 transitions. [2018-11-18 09:11:11,779 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2018-11-18 09:11:11,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:11:11,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:11:11,780 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:11:11,780 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] [2018-11-18 09:11:11,780 INFO L794 eck$LassoCheckResult]: Stem: 496#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(13);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 44];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 77];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 101];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 116];#memory_int := #memory_int[#t~string28.base,4 + #t~string28.offset := 104];#memory_int := #memory_int[#t~string28.base,5 + #t~string28.offset := 58];#memory_int := #memory_int[#t~string28.base,6 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 67];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 82];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 73];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 84];#memory_int := #memory_int[#t~string30.base,4 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 79];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 75];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 41];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 390#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 391#L556 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 432#L549 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 433#L564 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 495#L520 assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 497#L492 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 504#L941 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 440#L265-3 [2018-11-18 09:11:11,780 INFO L796 eck$LassoCheckResult]: Loop: 440#L265-3 assume true; 441#L265-1 assume !false; 392#L266 assume test_~splverifierCounter~0 < 4; 393#L267 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 493#L275 assume !(0 != test_~tmp~4); 474#L275-2 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 379#L285 assume !(0 != test_~tmp___0~2); 372#L285-2 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 373#L295 assume 0 != test_~tmp___2~0; 453#L301-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret72;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 454#L173 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 424#L951 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 385#L62 assume !(0 != ~pumpRunning~0); 377#L62-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 378#L120 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 419#L94-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 448#L86-3 assume { :end_inline_processEnvironment__wrappee__base } true; 449#L94-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 411#L120-1 assume { :end_inline_processEnvironment } true; 412#L69-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 489#L396 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 421#L962 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 422#L962-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 425#L79 assume { :end_inline_timeShift } true; 440#L265-3 [2018-11-18 09:11:11,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:11,781 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 09:11:11,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:11,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:11,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:11:11,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:11,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:11,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1292232867, now seen corresponding path program 1 times [2018-11-18 09:11:11,853 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:11,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:11,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,854 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:11:11,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:11:11,884 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 09:11:11,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:11:11,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:11:11,885 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:11:11,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:11:11,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:11:11,885 INFO L87 Difference]: Start difference. First operand 161 states and 213 transitions. cyclomatic complexity: 54 Second operand 3 states. [2018-11-18 09:11:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:11:11,964 INFO L93 Difference]: Finished difference Result 227 states and 289 transitions. [2018-11-18 09:11:11,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:11:11,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 227 states and 289 transitions. [2018-11-18 09:11:11,967 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2018-11-18 09:11:11,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 227 states to 227 states and 289 transitions. [2018-11-18 09:11:11,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 227 [2018-11-18 09:11:11,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 227 [2018-11-18 09:11:11,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 227 states and 289 transitions. [2018-11-18 09:11:11,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:11:11,971 INFO L705 BuchiCegarLoop]: Abstraction has 227 states and 289 transitions. [2018-11-18 09:11:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states and 289 transitions. [2018-11-18 09:11:11,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2018-11-18 09:11:11,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-11-18 09:11:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 289 transitions. [2018-11-18 09:11:11,981 INFO L728 BuchiCegarLoop]: Abstraction has 227 states and 289 transitions. [2018-11-18 09:11:11,981 INFO L608 BuchiCegarLoop]: Abstraction has 227 states and 289 transitions. [2018-11-18 09:11:11,982 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 09:11:11,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states and 289 transitions. [2018-11-18 09:11:11,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2018-11-18 09:11:11,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:11:11,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:11:11,985 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:11:11,985 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] [2018-11-18 09:11:11,986 INFO L794 eck$LassoCheckResult]: Stem: 897#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(13);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 44];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 77];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 101];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 116];#memory_int := #memory_int[#t~string28.base,4 + #t~string28.offset := 104];#memory_int := #memory_int[#t~string28.base,5 + #t~string28.offset := 58];#memory_int := #memory_int[#t~string28.base,6 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 67];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 82];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 73];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 84];#memory_int := #memory_int[#t~string30.base,4 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 79];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 75];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 41];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 779#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 780#L556 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 826#L549 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 827#L564 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 896#L520 assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 898#L492 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 907#L941 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 833#L265-3 [2018-11-18 09:11:11,986 INFO L796 eck$LassoCheckResult]: Loop: 833#L265-3 assume true; 834#L265-1 assume !false; 784#L266 assume test_~splverifierCounter~0 < 4; 785#L267 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 894#L275 assume !(0 != test_~tmp~4); 871#L275-2 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 772#L285 assume !(0 != test_~tmp___0~2); 763#L285-2 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 764#L295 assume 0 != test_~tmp___2~0; 845#L301-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret72;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 846#L173 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 816#L951 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 776#L62 assume !(0 != ~pumpRunning~0); 768#L62-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 769#L120 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 807#L94-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 859#L404-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 765#L409-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 766#L222-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 924#L222-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 920#L228-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 781#L98-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 783#L86-2 assume { :end_inline_processEnvironment__wrappee__base } true; 842#L94-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 802#L120-1 assume { :end_inline_processEnvironment } true; 803#L69-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 888#L396 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 813#L962 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 814#L962-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 817#L79 assume { :end_inline_timeShift } true; 833#L265-3 [2018-11-18 09:11:11,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:11,986 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 09:11:11,986 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:11,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:11,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:11,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:11:11,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:12,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:12,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1287920501, now seen corresponding path program 1 times [2018-11-18 09:11:12,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:12,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:12,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:12,046 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:11:12,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:11:12,080 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 09:11:12,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:11:12,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:11:12,081 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:11:12,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:11:12,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:11:12,082 INFO L87 Difference]: Start difference. First operand 227 states and 289 transitions. cyclomatic complexity: 64 Second operand 5 states. [2018-11-18 09:11:12,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:11:12,209 INFO L93 Difference]: Finished difference Result 640 states and 800 transitions. [2018-11-18 09:11:12,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:11:12,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 640 states and 800 transitions. [2018-11-18 09:11:12,213 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 413 [2018-11-18 09:11:12,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 640 states to 640 states and 800 transitions. [2018-11-18 09:11:12,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 640 [2018-11-18 09:11:12,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 640 [2018-11-18 09:11:12,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 640 states and 800 transitions. [2018-11-18 09:11:12,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:11:12,220 INFO L705 BuchiCegarLoop]: Abstraction has 640 states and 800 transitions. [2018-11-18 09:11:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states and 800 transitions. [2018-11-18 09:11:12,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 444. [2018-11-18 09:11:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2018-11-18 09:11:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 554 transitions. [2018-11-18 09:11:12,234 INFO L728 BuchiCegarLoop]: Abstraction has 444 states and 554 transitions. [2018-11-18 09:11:12,234 INFO L608 BuchiCegarLoop]: Abstraction has 444 states and 554 transitions. [2018-11-18 09:11:12,235 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 09:11:12,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 444 states and 554 transitions. [2018-11-18 09:11:12,237 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 314 [2018-11-18 09:11:12,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:11:12,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:11:12,238 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:11:12,238 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] [2018-11-18 09:11:12,238 INFO L794 eck$LassoCheckResult]: Stem: 1777#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 79];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 110];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 102];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 44];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 80];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 117];#memory_int := #memory_int[#t~string10.base,3 + #t~string10.offset := 109];#memory_int := #memory_int[#t~string10.base,4 + #t~string10.offset := 112];#memory_int := #memory_int[#t~string10.base,5 + #t~string10.offset := 58];#memory_int := #memory_int[#t~string10.base,6 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 79];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 110];#memory_int := #memory_int[#t~string12.base,2 + #t~string12.offset := 0];call #t~string14.base, #t~string14.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string14.base,#t~string14.offset := 79];#memory_int := #memory_int[#t~string14.base,1 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,2 + #t~string14.offset := 102];#memory_int := #memory_int[#t~string14.base,3 + #t~string14.offset := 0];call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 41];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 32];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 10];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(13);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 44];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 77];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 101];#memory_int := #memory_int[#t~string28.base,3 + #t~string28.offset := 116];#memory_int := #memory_int[#t~string28.base,4 + #t~string28.offset := 104];#memory_int := #memory_int[#t~string28.base,5 + #t~string28.offset := 58];#memory_int := #memory_int[#t~string28.base,6 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 67];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 82];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 73];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 84];#memory_int := #memory_int[#t~string30.base,4 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 79];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 75];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 41];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1665#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 1666#L556 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1706#L549 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1707#L564 main_#t~ret35 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret35;havoc main_#t~ret35; 1776#L520 assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 1778#L492 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1787#L941 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1713#L265-3 [2018-11-18 09:11:12,239 INFO L796 eck$LassoCheckResult]: Loop: 1713#L265-3 assume true; 1714#L265-1 assume !false; 1667#L266 assume test_~splverifierCounter~0 < 4; 1668#L267 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 1774#L275 assume !(0 != test_~tmp~4); 1771#L275-2 test_~tmp___0~2 := test_#t~nondet22;havoc test_#t~nondet22; 1657#L285 assume !(0 != test_~tmp___0~2); 1648#L285-2 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 1649#L295 assume 0 != test_~tmp___2~0; 1725#L301-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret72;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1726#L173 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 1696#L951 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1659#L62 assume !(0 != ~pumpRunning~0); 1651#L62-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1652#L120 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1690#L94-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret19, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1740#L404-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1644#L409-1 isHighWaterLevel_#t~ret19 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret19;havoc isHighWaterLevel_#t~ret19; 1645#L222-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1806#L222-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1802#L228-1 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1662#L98-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1664#L86-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1722#L94-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1685#L120-1 assume { :end_inline_processEnvironment } true; 1686#L69-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 1769#L396 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 1694#L962 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1695#L173-1 __utac_acc__Specification5_spec__3_#t~ret74 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 1779#L966 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1697#L962-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1698#L79 assume { :end_inline_timeShift } true; 1713#L265-3 [2018-11-18 09:11:12,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:12,239 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 09:11:12,239 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:12,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:12,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:12,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:11:12,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:12,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:12,283 INFO L82 PathProgramCache]: Analyzing trace with hash 721923760, now seen corresponding path program 1 times [2018-11-18 09:11:12,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:12,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:12,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:12,284 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:11:12,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:12,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:11:12,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1318481305, now seen corresponding path program 1 times [2018-11-18 09:11:12,292 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:11:12,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:11:12,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:12,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:11:12,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:11:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:11:12,486 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-11-18 09:11:56,712 WARN L180 SmtUtils]: Spent 44.18 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 09:12:18,602 WARN L180 SmtUtils]: Spent 21.89 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 09:12:18,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:12:18 BoogieIcfgContainer [2018-11-18 09:12:18,668 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 09:12:18,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:12:18,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:12:18,669 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:12:18,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:11" (3/4) ... [2018-11-18 09:12:18,672 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 09:12:18,720 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fdff13ef-d6de-45c5-a529-681bee981650/bin-2019/uautomizer/witness.graphml [2018-11-18 09:12:18,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:12:18,721 INFO L168 Benchmark]: Toolchain (without parser) took 68786.51 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 322.4 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -250.1 MB). Peak memory consumption was 72.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:12:18,721 INFO L168 Benchmark]: CDTParser took 0.18 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 09:12:18,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:12:18,722 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.74 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: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:12:18,722 INFO L168 Benchmark]: Boogie Preprocessor took 34.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:12:18,722 INFO L168 Benchmark]: RCFGBuilder took 626.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:12:18,723 INFO L168 Benchmark]: BuchiAutomizer took 67616.10 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 174.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -157.4 MB). Peak memory consumption was 353.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:12:18,723 INFO L168 Benchmark]: Witness Printer took 51.54 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:12:18,724 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 405.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.74 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: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 626.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 67616.10 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 174.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -157.4 MB). Peak memory consumption was 353.0 MB. Max. memory is 11.5 GB. * Witness Printer took 51.54 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 444 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 67.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 67.0s. 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, 196 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 444 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 766 SDtfs, 1498 SDslu, 810 SDs, 0 SdLazy, 142 SolverSat, 61 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: 265]: 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, "i > 0 && i <= this->argsCount"=0, ",Pump:"=35, "i > 0 && i <= this->argsCount"=23, "__utac__get_this_arg"=0, retValue_acc=0, "i > 0 && i <= this->argsCount"=15, "libacc.c"=31, methaneLevelCritical=0, "Off"=36, retValue_acc=1, tmp=1, tmp___0=0, "libacc.c"=0, tmp=0, "__utac__get_this_argtype"=0, "libacc.c"=0, retValue_acc=0, "__utac__get_this_argtype"=0, "libacc.c"=8, "i > 0 && i <= this->argsCount"=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@492dc7f8=0, "Pump(System:"=0, "Off"=0, "On"=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12f86712=0, ",Meth:"=27, cleanupTimeShifts=4, ")"=17, switchedOnBeforeTS=0, "Off"=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30f3622c=0, \result=0, NULL=0, systemActive=1, waterLevel=1, "__utac__get_this_argtype"=14, \result=1, "OK"=0, "CRIT"=0, "Off"=0, "i > 0 && i <= this->argsCount"=22, "On"=0, "On"=18, \result=0, ",Pump:"=0, "__utac__get_this_arg"=19, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_arg"=0, "libacc.c"=0, "Pump(System:"=37, \result=1, "\n"=34, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@644e5d8b=0, "__utac__get_this_arg"=12, \result=0, retValue_acc=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@438eb27f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e0ceda6=0, "__utac__get_this_argtype"=29, ") "=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30e5c61d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a036d96=155, ")"=0, tmp=1, "\n"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15b458c6=0, \result=1, "i > 0 && i <= this->argsCount"=39, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b8128f3=0, tmp=1, tmp___2=155, tmp___0=0, "CRIT"=16, "Env(Water:%i"=33, retValue_acc=1, splverifierCounter=0, "libacc.c"=0, "On"=11, "libacc.c"=26, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8a63fe6=0, head=0, retValue_acc=0, "Env(Water:%i"=0, ",Meth:"=0, "OK"=38, ") "=20, "libacc.c"=24} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 265]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L182] FCALL "Pump(System:" [L186] FCALL "On" [L190] FCALL "Off" [L194] FCALL ",Pump:" [L198] FCALL "On" [L202] FCALL "Off" [L206] FCALL ") " [L208] FCALL "\n" [L373] FCALL "Env(Water:%i" [L374] FCALL ",Meth:" [L378] FCALL "CRIT" [L382] FCALL "OK" [L386] FCALL ")" [L866] FCALL "i > 0 && i <= this->argsCount" [L866] FCALL "libacc.c" [L867] FCALL "__utac__get_this_arg" [L873] FCALL "i > 0 && i <= this->argsCount" [L873] FCALL "libacc.c" [L874] FCALL "__utac__get_this_arg" [L912] FCALL "i > 0 && i <= this->argsCount" [L912] FCALL "libacc.c" [L913] FCALL "__utac__get_this_argtype" [L919] FCALL "i > 0 && i <= this->argsCount" [L919] FCALL "libacc.c" [L920] FCALL "__utac__get_this_argtype" [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L321] int waterLevel = 1; [L322] int methaneLevelCritical = 0; [L433] int cleanupTimeShifts = 4; [L935] int switchedOnBeforeTS ; [L738] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L511] int retValue_acc ; [L512] int tmp ; [L516] FCALL select_helpers() [L517] FCALL select_features() [L518] CALL, EXPR valid_product() [L560] int retValue_acc ; [L563] retValue_acc = 1 [L564] RET return (retValue_acc); [L518] EXPR valid_product() [L518] tmp = valid_product() [L520] COND TRUE \read(tmp) [L522] FCALL setup() [L523] CALL runTest() [L501] CALL __utac_acc__Specification5_spec__1() [L940] RET switchedOnBeforeTS = 0 [L501] __utac_acc__Specification5_spec__1() [L502] CALL test() [L256] int splverifierCounter ; [L257] int tmp ; [L258] int tmp___0 ; [L259] int tmp___1 ; [L260] int tmp___2 ; [L263] splverifierCounter = 0 Loop: [L265] COND TRUE 1 [L267] COND TRUE splverifierCounter < 4 [L273] tmp = __VERIFIER_nondet_int() [L275] COND FALSE !(\read(tmp)) [L283] tmp___0 = __VERIFIER_nondet_int() [L285] COND FALSE !(\read(tmp___0)) [L293] tmp___2 = __VERIFIER_nondet_int() [L295] COND TRUE \read(tmp___2) [L308] CALL timeShift() [L60] CALL __utac_acc__Specification5_spec__2() [L949] CALL, EXPR isPumpRunning() [L169] int retValue_acc ; [L172] retValue_acc = pumpRunning [L173] RET return (retValue_acc); [L949] EXPR isPumpRunning() [L949] RET switchedOnBeforeTS = isPumpRunning() [L60] __utac_acc__Specification5_spec__2() [L62] COND FALSE !(\read(pumpRunning)) [L69] COND TRUE \read(systemActive) [L71] CALL processEnvironment() [L117] int tmp ; [L120] COND FALSE !(\read(pumpRunning)) [L135] CALL processEnvironment__wrappee__highWaterSensor() [L91] int tmp ; [L94] COND TRUE ! pumpRunning [L96] CALL, EXPR isHighWaterLevel() [L214] int retValue_acc ; [L215] int tmp ; [L216] int tmp___0 ; [L220] CALL, EXPR isHighWaterSensorDry() [L401] int retValue_acc ; [L404] COND TRUE waterLevel < 2 [L405] retValue_acc = 1 [L406] RET return (retValue_acc); [L220] EXPR isHighWaterSensorDry() [L220] tmp = isHighWaterSensorDry() [L222] COND TRUE \read(tmp) [L223] tmp___0 = 0 [L227] retValue_acc = tmp___0 [L228] RET return (retValue_acc); [L96] EXPR isHighWaterLevel() [L96] tmp = isHighWaterLevel() [L98] COND FALSE !(\read(tmp)) [L104] RET, FCALL processEnvironment__wrappee__base() [L135] RET processEnvironment__wrappee__highWaterSensor() [L71] processEnvironment() [L77] CALL __utac_acc__Specification5_spec__3() [L955] int tmp ; [L956] int tmp___0 ; [L960] CALL, EXPR getWaterLevel() [L392] int retValue_acc ; [L395] retValue_acc = waterLevel [L396] RET return (retValue_acc); [L960] EXPR getWaterLevel() [L960] tmp = getWaterLevel() [L962] COND TRUE tmp != 2 [L964] CALL, EXPR isPumpRunning() [L169] int retValue_acc ; [L172] retValue_acc = pumpRunning [L173] RET return (retValue_acc); [L964] EXPR isPumpRunning() [L964] tmp___0 = isPumpRunning() [L966] COND FALSE, RET !(\read(tmp___0)) [L77] RET __utac_acc__Specification5_spec__3() [L308] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...