./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product57_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_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product57_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/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 324eb41748355c32a9add81086317d66d1f7b200 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:46:19,467 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:46:19,468 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:46:19,475 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:46:19,476 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:46:19,476 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:46:19,477 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:46:19,478 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:46:19,479 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:46:19,480 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:46:19,480 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:46:19,480 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:46:19,481 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:46:19,482 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:46:19,483 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:46:19,483 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:46:19,484 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:46:19,485 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:46:19,486 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:46:19,487 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:46:19,488 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:46:19,489 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:46:19,494 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:46:19,495 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:46:19,495 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:46:19,495 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:46:19,496 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:46:19,496 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:46:19,497 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:46:19,498 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:46:19,498 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:46:19,499 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:46:19,499 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:46:19,499 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:46:19,500 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:46:19,500 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:46:19,500 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:46:19,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:46:19,510 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:46:19,511 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:46:19,511 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:46:19,511 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:46:19,512 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:46:19,512 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:46:19,512 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:46:19,512 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:46:19,512 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:46:19,512 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:46:19,512 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:46:19,513 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:46:19,513 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:46:19,513 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:46:19,513 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:46:19,513 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:46:19,513 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:46:19,513 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:46:19,513 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:46:19,513 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:46:19,514 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:46:19,514 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:46:19,514 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:46:19,514 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:46:19,514 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:46:19,514 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:46:19,514 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:46:19,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:46:19,515 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:46:19,515 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:46:19,515 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:46:19,515 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_5bb21f5f-654a-4c98-ade9-4eade2871610/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 -> 324eb41748355c32a9add81086317d66d1f7b200 [2018-11-18 16:46:19,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:46:19,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:46:19,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:46:19,546 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:46:19,546 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:46:19,547 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product57_true-unreach-call_false-termination.cil.c [2018-11-18 16:46:19,580 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/data/df85ea645/5582ce39526f4e3096639f9c4f3d78a2/FLAG2889431db [2018-11-18 16:46:20,017 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:46:20,018 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/sv-benchmarks/c/product-lines/minepump_spec3_product57_true-unreach-call_false-termination.cil.c [2018-11-18 16:46:20,025 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/data/df85ea645/5582ce39526f4e3096639f9c4f3d78a2/FLAG2889431db [2018-11-18 16:46:20,033 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/data/df85ea645/5582ce39526f4e3096639f9c4f3d78a2 [2018-11-18 16:46:20,035 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:46:20,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:46:20,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:46:20,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:46:20,038 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:46:20,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20, skipping insertion in model container [2018-11-18 16:46:20,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:46:20,078 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:46:20,260 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:46:20,269 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:46:20,368 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:46:20,383 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:46:20,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20 WrapperNode [2018-11-18 16:46:20,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:46:20,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:46:20,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:46:20,384 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:46:20,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:46:20,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:46:20,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:46:20,422 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:46:20,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... [2018-11-18 16:46:20,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:46:20,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:46:20,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:46:20,447 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:46:20,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/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 16:46:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:46:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:46:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:46:21,038 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:46:21,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:46:21 BoogieIcfgContainer [2018-11-18 16:46:21,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:46:21,039 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:46:21,039 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:46:21,042 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:46:21,043 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:46:21,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:46:20" (1/3) ... [2018-11-18 16:46:21,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21132dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:46:21, skipping insertion in model container [2018-11-18 16:46:21,044 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:46:21,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:46:20" (2/3) ... [2018-11-18 16:46:21,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21132dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:46:21, skipping insertion in model container [2018-11-18 16:46:21,045 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:46:21,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:46:21" (3/3) ... [2018-11-18 16:46:21,046 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product57_true-unreach-call_false-termination.cil.c [2018-11-18 16:46:21,088 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:46:21,089 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:46:21,089 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:46:21,089 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:46:21,089 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:46:21,089 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:46:21,089 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:46:21,089 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:46:21,090 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:46:21,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states. [2018-11-18 16:46:21,126 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2018-11-18 16:46:21,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:46:21,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:46:21,132 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:46:21,132 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:46:21,132 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:46:21,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states. [2018-11-18 16:46:21,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2018-11-18 16:46:21,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:46:21,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:46:21,139 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:46:21,139 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:46:21,143 INFO L794 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 16#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 154#L542true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 129#L535true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 67#L550true main_#t~ret75 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 27#L967true assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 155#L944true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 21#L830-3true [2018-11-18 16:46:21,143 INFO L796 eck$LassoCheckResult]: Loop: 21#L830-3true assume true; 18#L830-1true assume !false; 65#L831true assume test_~splverifierCounter~0 < 4; 133#L832true test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 35#L840true assume !(0 != test_~tmp~9); 36#L840-2true test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 169#L850true assume !(0 != test_~tmp___0~3); 175#L850-2true test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 127#L860true assume 0 != test_~tmp___2~0; 95#L866-2true assume { :begin_inline_timeShift } true; 52#L611true assume !(0 != ~pumpRunning~0); 53#L611-2true assume !(0 != ~systemActive~0); 100#L618-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 47#L457-2true __utac_acc__Specification3_spec__1_#t~ret46 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret46;havoc __utac_acc__Specification3_spec__1_#t~ret46; 11#L566true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 68#L572-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 134#L628true assume { :end_inline_timeShift } true; 21#L830-3true [2018-11-18 16:46:21,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:21,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 16:46:21,150 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:21,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:21,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:46:21,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:21,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:21,296 INFO L82 PathProgramCache]: Analyzing trace with hash 259941733, now seen corresponding path program 1 times [2018-11-18 16:46:21,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:21,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:21,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:46:21,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:21,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:21,309 INFO L82 PathProgramCache]: Analyzing trace with hash -671739871, now seen corresponding path program 1 times [2018-11-18 16:46:21,309 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:21,309 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:21,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:46:21,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:46:21,467 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 16:46:21,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:46:21,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:46:21,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:46:21,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:46:21,553 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 6 states. [2018-11-18 16:46:21,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:46:21,724 INFO L93 Difference]: Finished difference Result 191 states and 249 transitions. [2018-11-18 16:46:21,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 16:46:21,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 249 transitions. [2018-11-18 16:46:21,730 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2018-11-18 16:46:21,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 181 states and 239 transitions. [2018-11-18 16:46:21,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 181 [2018-11-18 16:46:21,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 181 [2018-11-18 16:46:21,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 181 states and 239 transitions. [2018-11-18 16:46:21,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:46:21,738 INFO L705 BuchiCegarLoop]: Abstraction has 181 states and 239 transitions. [2018-11-18 16:46:21,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states and 239 transitions. [2018-11-18 16:46:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-11-18 16:46:21,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-18 16:46:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 239 transitions. [2018-11-18 16:46:21,767 INFO L728 BuchiCegarLoop]: Abstraction has 181 states and 239 transitions. [2018-11-18 16:46:21,767 INFO L608 BuchiCegarLoop]: Abstraction has 181 states and 239 transitions. [2018-11-18 16:46:21,767 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:46:21,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 181 states and 239 transitions. [2018-11-18 16:46:21,769 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2018-11-18 16:46:21,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:46:21,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:46:21,770 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:46:21,771 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] [2018-11-18 16:46:21,771 INFO L794 eck$LassoCheckResult]: Stem: 558#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 453#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 454#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 499#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 500#L550 main_#t~ret75 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 504#L967 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 505#L944 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 479#L830-3 [2018-11-18 16:46:21,772 INFO L796 eck$LassoCheckResult]: Loop: 479#L830-3 assume true; 464#L830-1 assume !false; 465#L831 assume test_~splverifierCounter~0 < 4; 517#L832 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 518#L840 assume !(0 != test_~tmp~9); 525#L840-2 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 527#L850 assume !(0 != test_~tmp___0~3); 510#L850-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 497#L860 assume 0 != test_~tmp___2~0; 426#L866-2 assume { :begin_inline_timeShift } true; 446#L611 assume !(0 != ~pumpRunning~0); 420#L611-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 545#L669 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 432#L643-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 434#L635-3 assume { :end_inline_processEnvironment__wrappee__base } true; 444#L643-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 422#L669-1 assume { :end_inline_processEnvironment } true; 455#L618-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 456#L457-2 __utac_acc__Specification3_spec__1_#t~ret46 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret46;havoc __utac_acc__Specification3_spec__1_#t~ret46; 437#L566 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 439#L572-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 519#L628 assume { :end_inline_timeShift } true; 479#L830-3 [2018-11-18 16:46:21,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:21,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 16:46:21,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:21,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:21,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:46:21,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:21,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:21,819 INFO L82 PathProgramCache]: Analyzing trace with hash -202453101, now seen corresponding path program 1 times [2018-11-18 16:46:21,819 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:21,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:21,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,820 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:46:21,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:46:21,852 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 16:46:21,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:46:21,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:46:21,852 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:46:21,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:46:21,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:46:21,853 INFO L87 Difference]: Start difference. First operand 181 states and 239 transitions. cyclomatic complexity: 60 Second operand 3 states. [2018-11-18 16:46:21,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:46:21,909 INFO L93 Difference]: Finished difference Result 250 states and 318 transitions. [2018-11-18 16:46:21,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:46:21,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 250 states and 318 transitions. [2018-11-18 16:46:21,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2018-11-18 16:46:21,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 250 states to 250 states and 318 transitions. [2018-11-18 16:46:21,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 250 [2018-11-18 16:46:21,915 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 250 [2018-11-18 16:46:21,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 250 states and 318 transitions. [2018-11-18 16:46:21,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:46:21,916 INFO L705 BuchiCegarLoop]: Abstraction has 250 states and 318 transitions. [2018-11-18 16:46:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states and 318 transitions. [2018-11-18 16:46:21,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2018-11-18 16:46:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-11-18 16:46:21,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 318 transitions. [2018-11-18 16:46:21,933 INFO L728 BuchiCegarLoop]: Abstraction has 250 states and 318 transitions. [2018-11-18 16:46:21,934 INFO L608 BuchiCegarLoop]: Abstraction has 250 states and 318 transitions. [2018-11-18 16:46:21,934 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:46:21,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 250 states and 318 transitions. [2018-11-18 16:46:21,935 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2018-11-18 16:46:21,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:46:21,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:46:21,937 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:46:21,937 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] [2018-11-18 16:46:21,938 INFO L794 eck$LassoCheckResult]: Stem: 1002#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 889#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 890#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 940#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 941#L550 main_#t~ret75 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 945#L967 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 946#L944 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 912#L830-3 [2018-11-18 16:46:21,938 INFO L796 eck$LassoCheckResult]: Loop: 912#L830-3 assume true; 899#L830-1 assume !false; 900#L831 assume test_~splverifierCounter~0 < 4; 957#L832 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 958#L840 assume !(0 != test_~tmp~9); 967#L840-2 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 969#L850 assume !(0 != test_~tmp___0~3); 949#L850-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 938#L860 assume 0 != test_~tmp___2~0; 858#L866-2 assume { :begin_inline_timeShift } true; 880#L611 assume !(0 != ~pumpRunning~0); 998#L611-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 988#L669 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 869#L643-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 870#L497-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 918#L502-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 942#L789-3 assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~1 := 1; 1030#L789-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1019#L795-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 974#L647-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 976#L635-2 assume { :end_inline_processEnvironment__wrappee__base } true; 881#L643-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 863#L669-1 assume { :end_inline_processEnvironment } true; 892#L618-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 893#L457-2 __utac_acc__Specification3_spec__1_#t~ret46 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret46;havoc __utac_acc__Specification3_spec__1_#t~ret46; 873#L566 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 875#L572-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 960#L628 assume { :end_inline_timeShift } true; 912#L830-3 [2018-11-18 16:46:21,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:21,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 16:46:21,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:21,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:21,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:46:21,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:21,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:21,977 INFO L82 PathProgramCache]: Analyzing trace with hash 205570601, now seen corresponding path program 1 times [2018-11-18 16:46:21,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:21,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:21,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,979 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:46:21,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:46:22,015 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 16:46:22,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:46:22,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:46:22,016 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:46:22,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 16:46:22,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:46:22,016 INFO L87 Difference]: Start difference. First operand 250 states and 318 transitions. cyclomatic complexity: 70 Second operand 4 states. [2018-11-18 16:46:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:46:22,138 INFO L93 Difference]: Finished difference Result 487 states and 611 transitions. [2018-11-18 16:46:22,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 16:46:22,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 487 states and 611 transitions. [2018-11-18 16:46:22,143 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 344 [2018-11-18 16:46:22,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 487 states to 487 states and 611 transitions. [2018-11-18 16:46:22,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 487 [2018-11-18 16:46:22,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 487 [2018-11-18 16:46:22,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 487 states and 611 transitions. [2018-11-18 16:46:22,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:46:22,149 INFO L705 BuchiCegarLoop]: Abstraction has 487 states and 611 transitions. [2018-11-18 16:46:22,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states and 611 transitions. [2018-11-18 16:46:22,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 262. [2018-11-18 16:46:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-11-18 16:46:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 330 transitions. [2018-11-18 16:46:22,158 INFO L728 BuchiCegarLoop]: Abstraction has 262 states and 330 transitions. [2018-11-18 16:46:22,159 INFO L608 BuchiCegarLoop]: Abstraction has 262 states and 330 transitions. [2018-11-18 16:46:22,159 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 16:46:22,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 262 states and 330 transitions. [2018-11-18 16:46:22,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2018-11-18 16:46:22,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:46:22,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:46:22,162 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:46:22,162 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] [2018-11-18 16:46:22,162 INFO L794 eck$LassoCheckResult]: Stem: 1756#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1640#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1641#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1693#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1694#L550 main_#t~ret75 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 1699#L967 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1700#L944 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1663#L830-3 [2018-11-18 16:46:22,163 INFO L796 eck$LassoCheckResult]: Loop: 1663#L830-3 assume true; 1649#L830-1 assume !false; 1650#L831 assume test_~splverifierCounter~0 < 4; 1711#L832 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 1712#L840 assume !(0 != test_~tmp~9); 1720#L840-2 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 1722#L850 assume !(0 != test_~tmp___0~3); 1703#L850-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 1691#L860 assume 0 != test_~tmp___2~0; 1607#L866-2 assume { :begin_inline_timeShift } true; 1631#L611 assume !(0 != ~pumpRunning~0); 1751#L611-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1740#L669 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1620#L643-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1621#L497-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1669#L502-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 1696#L789-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1787#L789-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1776#L795-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 1727#L647-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 1729#L635-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1632#L643-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1612#L669-1 assume { :end_inline_processEnvironment } true; 1642#L618-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1643#L457-2 __utac_acc__Specification3_spec__1_#t~ret46 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret46;havoc __utac_acc__Specification3_spec__1_#t~ret46; 1624#L566 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 1626#L572-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1714#L628 assume { :end_inline_timeShift } true; 1663#L830-3 [2018-11-18 16:46:22,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:22,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 16:46:22,163 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:22,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:22,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:46:22,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:22,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:22,197 INFO L82 PathProgramCache]: Analyzing trace with hash -52594837, now seen corresponding path program 1 times [2018-11-18 16:46:22,198 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:22,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:22,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,199 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:46:22,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:22,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:22,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1303576785, now seen corresponding path program 1 times [2018-11-18 16:46:22,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:22,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:22,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:46:22,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:46:22,280 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 16:46:22,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:46:22,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:46:22,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:46:22,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:46:22,386 INFO L87 Difference]: Start difference. First operand 262 states and 330 transitions. cyclomatic complexity: 70 Second operand 5 states. [2018-11-18 16:46:22,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:46:22,528 INFO L93 Difference]: Finished difference Result 949 states and 1191 transitions. [2018-11-18 16:46:22,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:46:22,529 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 949 states and 1191 transitions. [2018-11-18 16:46:22,532 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 696 [2018-11-18 16:46:22,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 949 states to 949 states and 1191 transitions. [2018-11-18 16:46:22,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 949 [2018-11-18 16:46:22,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 949 [2018-11-18 16:46:22,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 949 states and 1191 transitions. [2018-11-18 16:46:22,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:46:22,537 INFO L705 BuchiCegarLoop]: Abstraction has 949 states and 1191 transitions. [2018-11-18 16:46:22,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states and 1191 transitions. [2018-11-18 16:46:22,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 517. [2018-11-18 16:46:22,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2018-11-18 16:46:22,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 645 transitions. [2018-11-18 16:46:22,550 INFO L728 BuchiCegarLoop]: Abstraction has 517 states and 645 transitions. [2018-11-18 16:46:22,550 INFO L608 BuchiCegarLoop]: Abstraction has 517 states and 645 transitions. [2018-11-18 16:46:22,550 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 16:46:22,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 517 states and 645 transitions. [2018-11-18 16:46:22,552 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 364 [2018-11-18 16:46:22,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:46:22,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:46:22,553 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:46:22,553 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 16:46:22,553 INFO L794 eck$LassoCheckResult]: Stem: 2991#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string38.base,#t~string38.offset := 44];#memory_int := #memory_int[#t~string38.base,1 + #t~string38.offset := 77];#memory_int := #memory_int[#t~string38.base,2 + #t~string38.offset := 101];#memory_int := #memory_int[#t~string38.base,3 + #t~string38.offset := 116];#memory_int := #memory_int[#t~string38.base,4 + #t~string38.offset := 104];#memory_int := #memory_int[#t~string38.base,5 + #t~string38.offset := 58];#memory_int := #memory_int[#t~string38.base,6 + #t~string38.offset := 0];call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string40.base,#t~string40.offset := 67];#memory_int := #memory_int[#t~string40.base,1 + #t~string40.offset := 82];#memory_int := #memory_int[#t~string40.base,2 + #t~string40.offset := 73];#memory_int := #memory_int[#t~string40.base,3 + #t~string40.offset := 84];#memory_int := #memory_int[#t~string40.base,4 + #t~string40.offset := 0];call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string42.base,#t~string42.offset := 79];#memory_int := #memory_int[#t~string42.base,1 + #t~string42.offset := 75];#memory_int := #memory_int[#t~string42.base,2 + #t~string42.offset := 0];call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string44.base,#t~string44.offset := 41];#memory_int := #memory_int[#t~string44.base,1 + #t~string44.offset := 0];call #t~string54.base, #t~string54.offset := #Ultimate.alloc(13);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 110];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 79];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 102];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 44];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 80];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 117];#memory_int := #memory_int[#t~string60.base,3 + #t~string60.offset := 109];#memory_int := #memory_int[#t~string60.base,4 + #t~string60.offset := 112];#memory_int := #memory_int[#t~string60.base,5 + #t~string60.offset := 58];#memory_int := #memory_int[#t~string60.base,6 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 110];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 79];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 102];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 41];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 32];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 10];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2868#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 2869#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2925#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 2926#L550 main_#t~ret75 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret75;havoc main_#t~ret75; 2930#L967 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 2931#L944 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet71, test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2893#L830-3 [2018-11-18 16:46:22,553 INFO L796 eck$LassoCheckResult]: Loop: 2893#L830-3 assume true; 2877#L830-1 assume !false; 2878#L831 assume test_~splverifierCounter~0 < 4; 3006#L832 test_~tmp~9 := test_#t~nondet71;havoc test_#t~nondet71; 3326#L840 assume !(0 != test_~tmp~9); 3323#L840-2 test_~tmp___0~3 := test_#t~nondet72;havoc test_#t~nondet72; 3319#L850 assume !(0 != test_~tmp___0~3); 3317#L850-2 test_~tmp___2~0 := test_#t~nondet73;havoc test_#t~nondet73; 3308#L860 assume 0 != test_~tmp___2~0; 3303#L866-2 assume { :begin_inline_timeShift } true; 3296#L611 assume !(0 != ~pumpRunning~0); 3295#L611-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2975#L669 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 2850#L643-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 2851#L497-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 2899#L502-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 2927#L789-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 3029#L789-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 3015#L795-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 2960#L647-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 2962#L635-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2882#L643-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2993#L669-1 assume { :end_inline_processEnvironment } true; 2870#L618-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 2871#L457-2 __utac_acc__Specification3_spec__1_#t~ret46 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret46;havoc __utac_acc__Specification3_spec__1_#t~ret46; 2856#L566 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 2857#L489 __utac_acc__Specification3_spec__1_#t~ret47 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 3011#L572 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2944#L572-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2947#L628 assume { :end_inline_timeShift } true; 2893#L830-3 [2018-11-18 16:46:22,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:22,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2018-11-18 16:46:22,554 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:22,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:22,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:46:22,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:22,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:22,583 INFO L82 PathProgramCache]: Analyzing trace with hash 997223486, now seen corresponding path program 1 times [2018-11-18 16:46:22,583 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:22,583 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:22,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,584 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:46:22,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:22,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:46:22,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1394414338, now seen corresponding path program 1 times [2018-11-18 16:46:22,592 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:46:22,592 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:46:22,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:46:22,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:46:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:46:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:47:06,731 WARN L180 SmtUtils]: Spent 43.96 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 16:47:18,432 WARN L180 SmtUtils]: Spent 11.70 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 16:47:18,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:47:18 BoogieIcfgContainer [2018-11-18 16:47:18,494 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:47:18,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:47:18,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:47:18,495 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:47:18,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:46:21" (3/4) ... [2018-11-18 16:47:18,498 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:47:18,540 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5bb21f5f-654a-4c98-ade9-4eade2871610/bin-2019/uautomizer/witness.graphml [2018-11-18 16:47:18,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:47:18,541 INFO L168 Benchmark]: Toolchain (without parser) took 58505.13 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 301.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -126.9 MB). Peak memory consumption was 174.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:47:18,541 INFO L168 Benchmark]: CDTParser took 0.10 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 16:47:18,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -219.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:47:18,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:47:18,542 INFO L168 Benchmark]: Boogie Preprocessor took 24.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:47:18,542 INFO L168 Benchmark]: RCFGBuilder took 591.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:47:18,542 INFO L168 Benchmark]: BuchiAutomizer took 57455.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 114.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -7.1 MB). Peak memory consumption was 286.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:47:18,543 INFO L168 Benchmark]: Witness Printer took 45.19 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:47:18,545 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 346.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -219.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 591.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 86.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 57455.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 114.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -7.1 MB). Peak memory consumption was 286.3 MB. Max. memory is 11.5 GB. * Witness Printer took 45.19 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 517 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 57.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 56.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 657 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 517 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1067 SDtfs, 2223 SDslu, 1700 SDs, 0 SdLazy, 207 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc2 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: 830]: 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, "Off"=0, "On"=0, "CRIT"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27a3f9e2=0, ")"=0, ",Pump:"=0, ",Meth:"=8, "OK"=0, "Off"=36, "On"=31, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@309735f6=0, tmp___0=0, "\n"=0, ") "=0, "\n"=28, tmp___1=0, tmp=0, "__utac__get_this_argtype"=17, "__utac__get_this_arg"=20, tmp___0=1, "__utac__get_this_arg"=24, "libacc.c"=18, "Env(Water:%i"=12, tmp=0, cleanupTimeShifts=4, "libacc.c"=15, "OK"=34, tmp=0, tmp=1, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_argtype"=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, ",Meth:"=0, "Off"=38, retValue_acc=0, \result=0, ")"=33, "Pump(System:"=0, ",Pump:"=37, "Off"=0, "On"=0, \result=1, retValue_acc=0, "i > 0 && i <= this->argsCount"=27, head=0, pumpRunning=0, \result=0, retValue_acc=1, "i > 0 && i <= this->argsCount"=23, "libacc.c"=0, "Env(Water:%i"=0, ") "=39, "i > 0 && i <= this->argsCount"=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dacb95a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c8e1c8e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@318c2750=160, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b537166=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c2e6761=0, "libacc.c"=22, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21d2419c=0, tmp=1, tmp___0=0, tmp___2=160, retValue_acc=1, "i > 0 && i <= this->argsCount"=16, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d7bf922=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a54e6cd=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58c61f62=0, tmp___1=0, head=0, "libacc.c"=0, tmp=0, "libacc.c"=26, "i > 0 && i <= this->argsCount"=19, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=14, "libacc.c"=0, "libacc.c"=0, "CRIT"=11, "On"=35, "Pump(System:"=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 830]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L337] FCALL "i > 0 && i <= this->argsCount" [L337] FCALL "libacc.c" [L338] FCALL "__utac__get_this_arg" [L344] FCALL "i > 0 && i <= this->argsCount" [L344] FCALL "libacc.c" [L345] FCALL "__utac__get_this_arg" [L383] FCALL "i > 0 && i <= this->argsCount" [L383] FCALL "libacc.c" [L384] FCALL "__utac__get_this_argtype" [L390] FCALL "i > 0 && i <= this->argsCount" [L390] FCALL "libacc.c" [L391] FCALL "__utac__get_this_argtype" [L466] FCALL "Env(Water:%i" [L467] FCALL ",Meth:" [L471] FCALL "CRIT" [L475] FCALL "OK" [L479] FCALL ")" [L749] FCALL "Pump(System:" [L753] FCALL "On" [L757] FCALL "Off" [L761] FCALL ",Pump:" [L765] FCALL "On" [L769] FCALL "Off" [L773] FCALL ") " [L775] FCALL "\n" [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L604] int pumpRunning = 0; [L605] int systemActive = 1; [L885] int cleanupTimeShifts = 4; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L958] int retValue_acc ; [L959] int tmp ; [L963] FCALL select_helpers() [L964] FCALL select_features() [L965] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] RET return (retValue_acc); [L965] EXPR valid_product() [L965] tmp = valid_product() [L967] COND TRUE \read(tmp) [L969] FCALL setup() [L970] CALL runTest() [L952] CALL test() [L821] int splverifierCounter ; [L822] int tmp ; [L823] int tmp___0 ; [L824] int tmp___1 ; [L825] int tmp___2 ; [L828] splverifierCounter = 0 Loop: [L830] COND TRUE 1 [L832] COND TRUE splverifierCounter < 4 [L838] tmp = __VERIFIER_nondet_int() [L840] COND FALSE !(\read(tmp)) [L848] tmp___0 = __VERIFIER_nondet_int() [L850] COND FALSE !(\read(tmp___0)) [L858] tmp___2 = __VERIFIER_nondet_int() [L860] COND TRUE \read(tmp___2) [L873] CALL timeShift() [L611] COND FALSE !(\read(pumpRunning)) [L618] COND TRUE \read(systemActive) [L620] CALL processEnvironment() [L666] int tmp ; [L669] COND FALSE !(\read(pumpRunning)) [L684] CALL processEnvironment__wrappee__highWaterSensor() [L640] int tmp ; [L643] COND TRUE ! pumpRunning [L645] CALL, EXPR isHighWaterLevel() [L781] int retValue_acc ; [L782] int tmp ; [L783] int tmp___0 ; [L787] CALL, EXPR isHighWaterSensorDry() [L494] int retValue_acc ; [L497] COND TRUE waterLevel < 2 [L498] retValue_acc = 1 [L499] RET return (retValue_acc); [L787] EXPR isHighWaterSensorDry() [L787] tmp = isHighWaterSensorDry() [L789] COND TRUE \read(tmp) [L790] tmp___0 = 0 [L794] retValue_acc = tmp___0 [L795] RET return (retValue_acc); [L645] EXPR isHighWaterLevel() [L645] tmp = isHighWaterLevel() [L647] COND FALSE !(\read(tmp)) [L653] RET, FCALL processEnvironment__wrappee__base() [L684] RET processEnvironment__wrappee__highWaterSensor() [L620] processEnvironment() [L626] CALL __utac_acc__Specification3_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L564] CALL, EXPR isMethaneLevelCritical() [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] RET return (retValue_acc); [L564] EXPR isMethaneLevelCritical() [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L570] CALL, EXPR getWaterLevel() [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] RET return (retValue_acc); [L570] EXPR getWaterLevel() [L570] tmp___0 = getWaterLevel() [L572] COND FALSE, RET !(tmp___0 == 2) [L626] RET __utac_acc__Specification3_spec__1() [L873] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...