./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product64_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product64_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 73819447b87648cd463b03989cd8839b460fd303 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:26:43,442 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:26:43,443 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:26:43,451 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:26:43,451 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:26:43,452 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:26:43,452 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:26:43,453 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:26:43,455 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:26:43,455 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:26:43,456 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:26:43,456 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:26:43,457 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:26:43,457 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:26:43,458 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:26:43,459 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:26:43,459 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:26:43,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:26:43,461 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:26:43,462 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:26:43,463 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:26:43,464 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:26:43,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:26:43,466 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:26:43,466 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:26:43,466 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:26:43,467 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:26:43,468 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:26:43,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:26:43,469 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:26:43,469 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:26:43,470 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:26:43,470 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:26:43,470 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:26:43,471 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:26:43,471 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:26:43,471 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 11:26:43,481 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:26:43,481 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:26:43,482 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:26:43,482 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:26:43,483 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:26:43,483 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:26:43,483 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:26:43,483 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:26:43,483 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:26:43,483 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:26:43,483 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:26:43,484 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:26:43,484 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:26:43,484 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:26:43,484 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:26:43,484 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:26:43,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:26:43,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:26:43,485 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:26:43,485 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:26:43,485 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:26:43,485 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:26:43,485 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:26:43,485 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:26:43,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:26:43,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:26:43,486 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:26:43,486 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:26:43,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:26:43,486 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:26:43,486 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:26:43,487 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:26:43,487 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_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73819447b87648cd463b03989cd8839b460fd303 [2018-11-18 11:26:43,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:26:43,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:26:43,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:26:43,521 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:26:43,521 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:26:43,522 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product64_true-unreach-call_false-termination.cil.c [2018-11-18 11:26:43,559 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/data/128f0448f/72591c0a604142ed841e2371bddfb54e/FLAGac489042f [2018-11-18 11:26:44,003 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:26:44,003 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/sv-benchmarks/c/product-lines/minepump_spec2_product64_true-unreach-call_false-termination.cil.c [2018-11-18 11:26:44,014 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/data/128f0448f/72591c0a604142ed841e2371bddfb54e/FLAGac489042f [2018-11-18 11:26:44,026 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/data/128f0448f/72591c0a604142ed841e2371bddfb54e [2018-11-18 11:26:44,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:26:44,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:26:44,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:26:44,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:26:44,033 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:26:44,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,035 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 11:26:44, skipping insertion in model container [2018-11-18 11:26:44,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:26:44,074 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:26:44,282 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:26:44,291 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:26:44,401 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:26:44,421 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:26:44,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44 WrapperNode [2018-11-18 11:26:44,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:26:44,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:26:44,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:26:44,423 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:26:44,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:26:44,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:26:44,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:26:44,485 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:26:44,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... [2018-11-18 11:26:44,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:26:44,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:26:44,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:26:44,535 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:26:44,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/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 11:26:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:26:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:26:44,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:26:45,408 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:26:45,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:26:45 BoogieIcfgContainer [2018-11-18 11:26:45,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:26:45,410 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:26:45,410 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:26:45,412 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:26:45,412 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:26:45,412 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:26:44" (1/3) ... [2018-11-18 11:26:45,413 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b138263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:26:45, skipping insertion in model container [2018-11-18 11:26:45,413 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:26:45,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:44" (2/3) ... [2018-11-18 11:26:45,414 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b138263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:26:45, skipping insertion in model container [2018-11-18 11:26:45,414 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:26:45,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:26:45" (3/3) ... [2018-11-18 11:26:45,416 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product64_true-unreach-call_false-termination.cil.c [2018-11-18 11:26:45,449 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:26:45,450 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:26:45,450 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:26:45,450 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:26:45,450 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:26:45,450 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:26:45,450 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:26:45,450 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:26:45,450 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:26:45,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 329 states. [2018-11-18 11:26:45,496 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2018-11-18 11:26:45,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:26:45,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:26:45,504 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:26:45,504 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:26:45,504 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:26:45,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 329 states. [2018-11-18 11:26:45,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2018-11-18 11:26:45,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:26:45,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:26:45,514 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:26:45,514 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:26:45,518 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 110];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 44];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 80];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 117];#memory_int := #memory_int[#t~string13.base,3 + #t~string13.offset := 109];#memory_int := #memory_int[#t~string13.base,4 + #t~string13.offset := 112];#memory_int := #memory_int[#t~string13.base,5 + #t~string13.offset := 58];#memory_int := #memory_int[#t~string13.base,6 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 110];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 79];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,3 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 41];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 32];#memory_int := #memory_int[#t~string19.base,2 + #t~string19.offset := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 10];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(13);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 44];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 77];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 101];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 116];#memory_int := #memory_int[#t~string33.base,4 + #t~string33.offset := 104];#memory_int := #memory_int[#t~string33.base,5 + #t~string33.offset := 58];#memory_int := #memory_int[#t~string33.base,6 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 67];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 82];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 73];#memory_int := #memory_int[#t~string35.base,3 + #t~string35.offset := 84];#memory_int := #memory_int[#t~string35.base,4 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 79];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 75];#memory_int := #memory_int[#t~string37.base,2 + #t~string37.offset := 0];call #t~string39.base, #t~string39.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string39.base,#t~string39.offset := 41];#memory_int := #memory_int[#t~string39.base,1 + #t~string39.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 20#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 28#L65true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 270#L58true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 159#L73true main_#t~ret40 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 112#L661true assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 64#L637true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 234#L441true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 83#L367-3true [2018-11-18 11:26:45,519 INFO L796 eck$LassoCheckResult]: Loop: 83#L367-3true assume true; 78#L367-1true assume !false; 146#L368true assume test_~splverifierCounter~0 < 4; 117#L369true test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 278#L377true assume !(0 != test_~tmp~6); 280#L377-2true test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 150#L387true assume !(0 != test_~tmp___0~2); 156#L387-2true test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 242#L397true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 103#L350true assume { :end_inline_startSystem } true; 105#L405-2true assume { :begin_inline_timeShift } true; 33#L98true assume !(0 != ~pumpRunning~0); 24#L98-2true assume !(0 != ~systemActive~0); 253#L105-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 249#L518-5true __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 232#L452true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 238#L452-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 124#L115true assume { :end_inline_timeShift } true; 83#L367-3true [2018-11-18 11:26:45,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:26:45,524 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 11:26:45,525 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:26:45,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:26:45,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:45,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:26:45,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:45,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:26:45,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1290111559, now seen corresponding path program 1 times [2018-11-18 11:26:45,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:26:45,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:26:45,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:45,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:26:45,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:26:45,731 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 11:26:45,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:26:45,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:26:45,737 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:26:45,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:26:45,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:26:45,748 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 3 states. [2018-11-18 11:26:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:26:45,824 INFO L93 Difference]: Finished difference Result 642 states and 854 transitions. [2018-11-18 11:26:45,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:26:45,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 642 states and 854 transitions. [2018-11-18 11:26:45,835 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 424 [2018-11-18 11:26:45,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 642 states to 622 states and 833 transitions. [2018-11-18 11:26:45,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 622 [2018-11-18 11:26:45,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 622 [2018-11-18 11:26:45,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 622 states and 833 transitions. [2018-11-18 11:26:45,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:26:45,850 INFO L705 BuchiCegarLoop]: Abstraction has 622 states and 833 transitions. [2018-11-18 11:26:45,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states and 833 transitions. [2018-11-18 11:26:45,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 619. [2018-11-18 11:26:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2018-11-18 11:26:45,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 829 transitions. [2018-11-18 11:26:45,893 INFO L728 BuchiCegarLoop]: Abstraction has 619 states and 829 transitions. [2018-11-18 11:26:45,894 INFO L608 BuchiCegarLoop]: Abstraction has 619 states and 829 transitions. [2018-11-18 11:26:45,894 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:26:45,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 619 states and 829 transitions. [2018-11-18 11:26:45,897 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 421 [2018-11-18 11:26:45,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:26:45,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:26:45,898 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:26:45,899 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 11:26:45,899 INFO L794 eck$LassoCheckResult]: Stem: 1166#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 110];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 44];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 80];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 117];#memory_int := #memory_int[#t~string13.base,3 + #t~string13.offset := 109];#memory_int := #memory_int[#t~string13.base,4 + #t~string13.offset := 112];#memory_int := #memory_int[#t~string13.base,5 + #t~string13.offset := 58];#memory_int := #memory_int[#t~string13.base,6 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 110];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 79];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,3 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 41];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 32];#memory_int := #memory_int[#t~string19.base,2 + #t~string19.offset := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 10];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(13);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 44];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 77];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 101];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 116];#memory_int := #memory_int[#t~string33.base,4 + #t~string33.offset := 104];#memory_int := #memory_int[#t~string33.base,5 + #t~string33.offset := 58];#memory_int := #memory_int[#t~string33.base,6 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 67];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 82];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 73];#memory_int := #memory_int[#t~string35.base,3 + #t~string35.offset := 84];#memory_int := #memory_int[#t~string35.base,4 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 79];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 75];#memory_int := #memory_int[#t~string37.base,2 + #t~string37.offset := 0];call #t~string39.base, #t~string39.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string39.base,#t~string39.offset := 41];#memory_int := #memory_int[#t~string39.base,1 + #t~string39.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1013#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 1014#L65 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1029#L58 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1195#L73 main_#t~ret40 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 1150#L661 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 1085#L637 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1086#L441 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1115#L367-3 [2018-11-18 11:26:45,899 INFO L796 eck$LassoCheckResult]: Loop: 1115#L367-3 assume true; 1105#L367-1 assume !false; 1106#L368 assume test_~splverifierCounter~0 < 4; 1159#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 1160#L377 assume !(0 != test_~tmp~6); 1295#L377-2 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 1188#L387 assume !(0 != test_~tmp___0~2); 1066#L387-2 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 1192#L397 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1138#L350 assume { :end_inline_startSystem } true; 1139#L405-2 assume { :begin_inline_timeShift } true; 1039#L98 assume !(0 != ~pumpRunning~0); 1022#L98-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1023#L182 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret5, isMethaneAlarm_~retValue_acc~2;havoc isMethaneAlarm_~retValue_acc~2;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1158#L518 isMethaneAlarm_#t~ret5 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2 := isMethaneAlarm_#t~ret5;havoc isMethaneAlarm_#t~ret5;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~2; 1243#L243 processEnvironment_#t~ret3 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2 := processEnvironment_#t~ret3;havoc processEnvironment_#t~ret3; 982#L186 assume 0 != processEnvironment_~tmp~2;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 983#L233-1 assume { :end_inline_deactivatePump } true; 1153#L182-1 assume { :end_inline_processEnvironment } true; 1154#L105-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1275#L518-5 __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 1264#L452 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 1152#L452-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1169#L115 assume { :end_inline_timeShift } true; 1115#L367-3 [2018-11-18 11:26:45,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:26:45,900 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 11:26:45,900 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:26:45,900 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:26:45,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:45,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:26:45,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:45,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:26:45,959 INFO L82 PathProgramCache]: Analyzing trace with hash 722519042, now seen corresponding path program 1 times [2018-11-18 11:26:45,959 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:26:45,960 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:26:45,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:45,960 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:26:45,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:26:45,986 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 11:26:45,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:26:45,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:26:45,986 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:26:45,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:26:45,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:26:45,987 INFO L87 Difference]: Start difference. First operand 619 states and 829 transitions. cyclomatic complexity: 213 Second operand 3 states. [2018-11-18 11:26:46,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:26:46,106 INFO L93 Difference]: Finished difference Result 645 states and 824 transitions. [2018-11-18 11:26:46,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:26:46,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 645 states and 824 transitions. [2018-11-18 11:26:46,110 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 451 [2018-11-18 11:26:46,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 645 states to 645 states and 824 transitions. [2018-11-18 11:26:46,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 645 [2018-11-18 11:26:46,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 645 [2018-11-18 11:26:46,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 645 states and 824 transitions. [2018-11-18 11:26:46,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:26:46,115 INFO L705 BuchiCegarLoop]: Abstraction has 645 states and 824 transitions. [2018-11-18 11:26:46,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states and 824 transitions. [2018-11-18 11:26:46,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2018-11-18 11:26:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2018-11-18 11:26:46,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 824 transitions. [2018-11-18 11:26:46,131 INFO L728 BuchiCegarLoop]: Abstraction has 645 states and 824 transitions. [2018-11-18 11:26:46,131 INFO L608 BuchiCegarLoop]: Abstraction has 645 states and 824 transitions. [2018-11-18 11:26:46,131 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 11:26:46,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 645 states and 824 transitions. [2018-11-18 11:26:46,134 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 451 [2018-11-18 11:26:46,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:26:46,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:26:46,135 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:26:46,136 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:26:46,136 INFO L794 eck$LassoCheckResult]: Stem: 2408#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(13);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 79];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 110];#memory_int := #memory_int[#t~string9.base,2 + #t~string9.offset := 0];call #t~string11.base, #t~string11.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string11.base,#t~string11.offset := 79];#memory_int := #memory_int[#t~string11.base,1 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,2 + #t~string11.offset := 102];#memory_int := #memory_int[#t~string11.base,3 + #t~string11.offset := 0];call #t~string13.base, #t~string13.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string13.base,#t~string13.offset := 44];#memory_int := #memory_int[#t~string13.base,1 + #t~string13.offset := 80];#memory_int := #memory_int[#t~string13.base,2 + #t~string13.offset := 117];#memory_int := #memory_int[#t~string13.base,3 + #t~string13.offset := 109];#memory_int := #memory_int[#t~string13.base,4 + #t~string13.offset := 112];#memory_int := #memory_int[#t~string13.base,5 + #t~string13.offset := 58];#memory_int := #memory_int[#t~string13.base,6 + #t~string13.offset := 0];call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string15.base,#t~string15.offset := 79];#memory_int := #memory_int[#t~string15.base,1 + #t~string15.offset := 110];#memory_int := #memory_int[#t~string15.base,2 + #t~string15.offset := 0];call #t~string17.base, #t~string17.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string17.base,#t~string17.offset := 79];#memory_int := #memory_int[#t~string17.base,1 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,2 + #t~string17.offset := 102];#memory_int := #memory_int[#t~string17.base,3 + #t~string17.offset := 0];call #t~string19.base, #t~string19.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string19.base,#t~string19.offset := 41];#memory_int := #memory_int[#t~string19.base,1 + #t~string19.offset := 32];#memory_int := #memory_int[#t~string19.base,2 + #t~string19.offset := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string21.base,#t~string21.offset := 10];#memory_int := #memory_int[#t~string21.base,1 + #t~string21.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(13);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string33.base,#t~string33.offset := 44];#memory_int := #memory_int[#t~string33.base,1 + #t~string33.offset := 77];#memory_int := #memory_int[#t~string33.base,2 + #t~string33.offset := 101];#memory_int := #memory_int[#t~string33.base,3 + #t~string33.offset := 116];#memory_int := #memory_int[#t~string33.base,4 + #t~string33.offset := 104];#memory_int := #memory_int[#t~string33.base,5 + #t~string33.offset := 58];#memory_int := #memory_int[#t~string33.base,6 + #t~string33.offset := 0];call #t~string35.base, #t~string35.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string35.base,#t~string35.offset := 67];#memory_int := #memory_int[#t~string35.base,1 + #t~string35.offset := 82];#memory_int := #memory_int[#t~string35.base,2 + #t~string35.offset := 73];#memory_int := #memory_int[#t~string35.base,3 + #t~string35.offset := 84];#memory_int := #memory_int[#t~string35.base,4 + #t~string35.offset := 0];call #t~string37.base, #t~string37.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string37.base,#t~string37.offset := 79];#memory_int := #memory_int[#t~string37.base,1 + #t~string37.offset := 75];#memory_int := #memory_int[#t~string37.base,2 + #t~string37.offset := 0];call #t~string39.base, #t~string39.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string39.base,#t~string39.offset := 41];#memory_int := #memory_int[#t~string39.base,1 + #t~string39.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2275#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~10, main_~tmp~8;havoc main_~retValue_acc~10;havoc main_~tmp~8;assume { :begin_inline_select_helpers } true; 2276#L65 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2290#L58 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 2437#L73 main_#t~ret40 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 2392#L661 assume 0 != main_~tmp~8;assume { :begin_inline_setup } true; 2335#L637 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2336#L441 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2491#L367-3 [2018-11-18 11:26:46,136 INFO L796 eck$LassoCheckResult]: Loop: 2491#L367-3 assume true; 2685#L367-1 assume !false; 2682#L368 assume test_~splverifierCounter~0 < 4; 2683#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 2854#L377 assume !(0 != test_~tmp~6); 2852#L377-2 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 2850#L387 assume !(0 != test_~tmp___0~2); 2848#L387-2 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 2847#L397 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2380#L350 assume { :end_inline_startSystem } true; 2381#L405-2 assume { :begin_inline_timeShift } true; 2845#L98 assume !(0 != ~pumpRunning~0); 2283#L98-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2284#L182 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 2663#L156-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2894#L130-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 2893#L558-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 2892#L563-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 2891#L301-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 2676#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 2675#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 2674#L134-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2455#L122-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2349#L130-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2357#L156-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2395#L182-1 assume { :end_inline_processEnvironment } true; 2396#L105-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28, __utac_acc__Specification2_spec__2_#t~ret29, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 2499#L518-5 __utac_acc__Specification2_spec__2_#t~ret28 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret28;havoc __utac_acc__Specification2_spec__2_#t~ret28; 2488#L452 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 2394#L452-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2492#L115 assume { :end_inline_timeShift } true; 2491#L367-3 [2018-11-18 11:26:46,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:26:46,137 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 11:26:46,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:26:46,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:26:46,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:46,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:26:46,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:46,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:26:46,185 INFO L82 PathProgramCache]: Analyzing trace with hash -148859907, now seen corresponding path program 1 times [2018-11-18 11:26:46,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:26:46,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:26:46,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:46,187 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:26:46,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:46,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:26:46,199 INFO L82 PathProgramCache]: Analyzing trace with hash -960900108, now seen corresponding path program 1 times [2018-11-18 11:26:46,200 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:26:46,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:26:46,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:46,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:26:46,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:26:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:26:46,381 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2018-11-18 11:28:06,954 WARN L180 SmtUtils]: Spent 1.34 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 11:28:40,517 WARN L180 SmtUtils]: Spent 33.56 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 11:28:40,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:28:40 BoogieIcfgContainer [2018-11-18 11:28:40,600 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:28:40,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:28:40,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:28:40,600 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:28:40,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:26:45" (3/4) ... [2018-11-18 11:28:40,602 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 11:28:40,643 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1bf09446-d909-4570-aaa8-a1f1efdca0c7/bin-2019/uautomizer/witness.graphml [2018-11-18 11:28:40,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:28:40,643 INFO L168 Benchmark]: Toolchain (without parser) took 116614.58 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 277.3 MB). Free memory was 951.1 MB in the beginning and 1.2 GB in the end (delta: -200.4 MB). Peak memory consumption was 77.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:40,644 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:28:40,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -198.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:40,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.82 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:40,645 INFO L168 Benchmark]: Boogie Preprocessor took 49.63 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:40,645 INFO L168 Benchmark]: RCFGBuilder took 874.67 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: 97.2 MB). Peak memory consumption was 97.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:40,645 INFO L168 Benchmark]: BuchiAutomizer took 115190.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 109.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -112.6 MB). Peak memory consumption was 266.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:28:40,645 INFO L168 Benchmark]: Witness Printer took 42.94 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:28:40,647 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 392.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -198.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.82 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.63 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 874.67 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: 97.2 MB). Peak memory consumption was 97.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 115190.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 109.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -112.6 MB). Peak memory consumption was 266.5 MB. Max. memory is 11.5 GB. * Witness Printer took 42.94 ms. Allocated memory is still 1.3 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 645 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 115.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 114.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 645 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 750 SDtfs, 663 SDslu, 553 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 367]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {"On"=16, NULL=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30c13342=0, "Pump(System:"=20, "__utac__get_this_arg"=0, "libacc.c"=0, "libacc.c"=35, "libacc.c"=39, "Off"=18, "__utac__get_this_arg"=34, methaneLevelCritical=0, "OK"=26, tmp___0=0, retValue_acc=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, ",Meth:"=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@750da861=0, tmp=0, "i > 0 && i <= this->argsCount"=8, tmp___1=0, tmp=0, ")"=24, cleanupTimeShifts=4, "Env(Water:%i"=12, "Off"=15, "\n"=0, NULL=0, systemActive=1, waterLevel=1, "libacc.c"=33, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59a3f8d=0, "libacc.c"=23, retValue_acc=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@342716f8=0, "\n"=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26dfec93=0, ") "=0, "__utac__get_this_argtype"=0, "On"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14b86e7f=170, "CRIT"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a000a8c=0, ",Meth:"=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bd6c3d8=0, "CRIT"=27, "Off"=0, \result=1, "__utac__get_this_arg"=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12047ddd=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, tmp=1, "__utac__get_this_argtype"=0, retValue_acc=1, tmp___0=0, tmp___2=170, tmp___0=0, splverifierCounter=0, "i > 0 && i <= this->argsCount"=0, "On"=0, "Pump(System:"=0, methAndRunningLastTime=0, \result=0, "__utac__get_this_argtype"=40, "On"=19, "__utac__get_this_argtype"=29, "i > 0 && i <= this->argsCount"=22, tmp=0, head=0, tmp=0, ") "=14, "OK"=0, ")"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42f097cb=0, "Env(Water:%i"=0, ",Pump:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@669ae9cc=0, "Off"=0, "i > 0 && i <= this->argsCount"=36, ",Pump:"=17, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 367]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L261] FCALL "Pump(System:" [L265] FCALL "On" [L269] FCALL "Off" [L273] FCALL ",Pump:" [L277] FCALL "On" [L281] FCALL "Off" [L285] FCALL ") " [L287] FCALL "\n" [L527] FCALL "Env(Water:%i" [L528] FCALL ",Meth:" [L532] FCALL "CRIT" [L536] FCALL "OK" [L540] FCALL ")" [L972] FCALL "i > 0 && i <= this->argsCount" [L972] FCALL "libacc.c" [L973] FCALL "__utac__get_this_arg" [L979] FCALL "i > 0 && i <= this->argsCount" [L979] FCALL "libacc.c" [L980] FCALL "__utac__get_this_arg" [L1018] FCALL "i > 0 && i <= this->argsCount" [L1018] FCALL "libacc.c" [L1019] FCALL "__utac__get_this_argtype" [L1025] FCALL "i > 0 && i <= this->argsCount" [L1025] FCALL "libacc.c" [L1026] FCALL "__utac__get_this_argtype" [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L435] int methAndRunningLastTime ; [L475] int waterLevel = 1; [L476] int methaneLevelCritical = 0; [L578] int cleanupTimeShifts = 4; [L844] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int retValue_acc ; [L653] int tmp ; [L657] FCALL select_helpers() [L658] FCALL select_features() [L659] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] RET return (retValue_acc); [L659] EXPR valid_product() [L659] tmp = valid_product() [L661] COND TRUE \read(tmp) [L663] FCALL setup() [L664] CALL runTest() [L645] CALL __utac_acc__Specification2_spec__1() [L440] RET methAndRunningLastTime = 0 [L645] __utac_acc__Specification2_spec__1() [L646] CALL test() [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 Loop: [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND FALSE !(\read(tmp)) [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND TRUE \read(tmp___2) [L399] CALL startSystem() [L349] RET systemActive = 1 [L399] startSystem() [L414] CALL timeShift() [L98] COND FALSE !(\read(pumpRunning)) [L105] COND TRUE \read(systemActive) [L107] CALL processEnvironment() [L179] int tmp ; [L182] COND FALSE !(\read(pumpRunning)) [L197] CALL processEnvironment__wrappee__methaneQuery() [L153] int tmp ; [L156] COND FALSE !(\read(pumpRunning)) [L171] CALL processEnvironment__wrappee__highWaterSensor() [L127] int tmp ; [L130] COND TRUE ! pumpRunning [L132] CALL, EXPR isHighWaterLevel() [L293] int retValue_acc ; [L294] int tmp ; [L295] int tmp___0 ; [L299] CALL, EXPR isHighWaterSensorDry() [L555] int retValue_acc ; [L558] COND TRUE waterLevel < 2 [L559] retValue_acc = 1 [L560] RET return (retValue_acc); [L299] EXPR isHighWaterSensorDry() [L299] tmp = isHighWaterSensorDry() [L301] COND TRUE \read(tmp) [L302] tmp___0 = 0 [L306] retValue_acc = tmp___0 [L307] RET return (retValue_acc); [L132] EXPR isHighWaterLevel() [L132] tmp = isHighWaterLevel() [L134] COND FALSE !(\read(tmp)) [L140] RET, FCALL processEnvironment__wrappee__base() [L171] RET processEnvironment__wrappee__highWaterSensor() [L197] RET processEnvironment__wrappee__methaneQuery() [L107] processEnvironment() [L113] CALL __utac_acc__Specification2_spec__2() [L445] int tmp ; [L446] int tmp___0 ; [L450] CALL, EXPR isMethaneLevelCritical() [L514] int retValue_acc ; [L517] retValue_acc = methaneLevelCritical [L518] RET return (retValue_acc); [L450] EXPR isMethaneLevelCritical() [L450] tmp = isMethaneLevelCritical() [L452] COND FALSE !(\read(tmp)) [L468] RET methAndRunningLastTime = 0 [L113] RET __utac_acc__Specification2_spec__2() [L414] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...