./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product58_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_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product58_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/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 e8e2fe939766c7a542c760a74550866c5b83d51d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:15:18,498 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:15:18,499 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:15:18,505 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:15:18,506 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:15:18,506 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:15:18,507 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:15:18,508 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:15:18,509 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:15:18,510 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:15:18,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:15:18,511 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:15:18,511 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:15:18,512 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:15:18,512 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:15:18,513 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:15:18,513 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:15:18,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:15:18,516 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:15:18,517 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:15:18,517 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:15:18,518 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:15:18,520 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:15:18,520 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:15:18,520 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:15:18,520 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:15:18,521 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:15:18,521 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:15:18,522 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:15:18,522 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:15:18,522 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:15:18,523 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:15:18,523 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:15:18,523 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:15:18,523 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:15:18,524 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:15:18,524 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 09:15:18,535 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:15:18,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:15:18,536 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:15:18,536 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:15:18,536 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:15:18,536 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 09:15:18,536 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 09:15:18,537 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 09:15:18,537 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 09:15:18,537 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 09:15:18,537 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 09:15:18,537 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:15:18,537 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:15:18,537 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:15:18,537 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:15:18,538 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:15:18,538 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:15:18,538 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 09:15:18,538 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 09:15:18,538 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 09:15:18,538 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:15:18,538 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:15:18,539 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 09:15:18,539 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:15:18,539 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 09:15:18,539 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:15:18,539 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:15:18,539 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 09:15:18,539 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:15:18,539 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:15:18,540 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 09:15:18,540 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 09:15:18,540 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_67676f3a-dd36-41f9-a894-ab24ae017041/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 -> e8e2fe939766c7a542c760a74550866c5b83d51d [2018-11-18 09:15:18,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:15:18,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:15:18,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:15:18,576 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:15:18,576 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:15:18,576 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product58_true-unreach-call_false-termination.cil.c [2018-11-18 09:15:18,620 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/data/78d162cb8/ddecb6c5400e4fb38fe1aba8831b3136/FLAG5c4cde86d [2018-11-18 09:15:19,066 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:15:19,066 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/sv-benchmarks/c/product-lines/minepump_spec5_product58_true-unreach-call_false-termination.cil.c [2018-11-18 09:15:19,074 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/data/78d162cb8/ddecb6c5400e4fb38fe1aba8831b3136/FLAG5c4cde86d [2018-11-18 09:15:19,084 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/data/78d162cb8/ddecb6c5400e4fb38fe1aba8831b3136 [2018-11-18 09:15:19,086 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:15:19,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:15:19,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:15:19,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:15:19,091 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:15:19,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19, skipping insertion in model container [2018-11-18 09:15:19,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:15:19,131 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:15:19,323 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:15:19,331 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:15:19,431 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:15:19,447 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:15:19,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19 WrapperNode [2018-11-18 09:15:19,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:15:19,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:15:19,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:15:19,448 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:15:19,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:15:19,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:15:19,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:15:19,497 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:15:19,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... [2018-11-18 09:15:19,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:15:19,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:15:19,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:15:19,527 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:15:19,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:15:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:15:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:15:20,197 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:15:20,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:15:20 BoogieIcfgContainer [2018-11-18 09:15:20,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:15:20,198 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 09:15:20,198 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 09:15:20,200 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 09:15:20,200 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:15:20,200 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:15:19" (1/3) ... [2018-11-18 09:15:20,201 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48c3ba39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:15:20, skipping insertion in model container [2018-11-18 09:15:20,201 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:15:20,201 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:19" (2/3) ... [2018-11-18 09:15:20,202 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48c3ba39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:15:20, skipping insertion in model container [2018-11-18 09:15:20,202 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:15:20,202 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:15:20" (3/3) ... [2018-11-18 09:15:20,203 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product58_true-unreach-call_false-termination.cil.c [2018-11-18 09:15:20,238 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:15:20,238 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 09:15:20,238 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 09:15:20,238 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 09:15:20,239 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:15:20,239 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:15:20,239 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 09:15:20,239 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:15:20,239 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 09:15:20,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states. [2018-11-18 09:15:20,277 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2018-11-18 09:15:20,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:20,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:20,284 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:20,284 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:20,284 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 09:15:20,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states. [2018-11-18 09:15:20,290 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2018-11-18 09:15:20,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:20,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:20,291 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:20,292 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:20,295 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 44];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 80];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 117];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 109];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 112];#memory_int := #memory_int[#t~string64.base,5 + #t~string64.offset := 58];#memory_int := #memory_int[#t~string64.base,6 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 110];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 79];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 41];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 32];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 10];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 101#L998true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 54#L991true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 14#L1006true main_#t~ret48 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 194#L657true assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 103#L629true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 88#L159true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 130#L691-3true [2018-11-18 09:15:20,295 INFO L796 eck$LassoCheckResult]: Loop: 130#L691-3true assume true; 126#L691-1true assume !false; 27#L692true assume test_~splverifierCounter~0 < 4; 83#L693true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 190#L701true assume !(0 != test_~tmp~5); 196#L701-2true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 107#L711true assume !(0 != test_~tmp___0~1); 111#L711-2true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 58#L721true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 122#L972true assume { :end_inline_startSystem } true; 160#L729-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret10;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 134#L889true __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 25#L169true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 49#L760true assume !(0 != ~pumpRunning~0); 50#L760-2true assume !(0 != ~systemActive~0); 187#L767-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 180#L123true __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 26#L180true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 24#L180-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 104#L777true assume { :end_inline_timeShift } true; 130#L691-3true [2018-11-18 09:15:20,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:20,299 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 09:15:20,300 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:20,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:20,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:20,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:20,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:20,452 INFO L82 PathProgramCache]: Analyzing trace with hash 2063451131, now seen corresponding path program 1 times [2018-11-18 09:15:20,452 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:20,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:20,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:20,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:15:20,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:15:20,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:15:20,493 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:15:20,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:15:20,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:15:20,508 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2018-11-18 09:15:20,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:15:20,562 INFO L93 Difference]: Finished difference Result 196 states and 255 transitions. [2018-11-18 09:15:20,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:15:20,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 255 transitions. [2018-11-18 09:15:20,568 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-18 09:15:20,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 186 states and 244 transitions. [2018-11-18 09:15:20,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 186 [2018-11-18 09:15:20,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 186 [2018-11-18 09:15:20,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 186 states and 244 transitions. [2018-11-18 09:15:20,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:15:20,576 INFO L705 BuchiCegarLoop]: Abstraction has 186 states and 244 transitions. [2018-11-18 09:15:20,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states and 244 transitions. [2018-11-18 09:15:20,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2018-11-18 09:15:20,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-11-18 09:15:20,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 244 transitions. [2018-11-18 09:15:20,606 INFO L728 BuchiCegarLoop]: Abstraction has 186 states and 244 transitions. [2018-11-18 09:15:20,606 INFO L608 BuchiCegarLoop]: Abstraction has 186 states and 244 transitions. [2018-11-18 09:15:20,606 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 09:15:20,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 244 transitions. [2018-11-18 09:15:20,608 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2018-11-18 09:15:20,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:20,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:20,609 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:20,609 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:20,609 INFO L794 eck$LassoCheckResult]: Stem: 541#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 44];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 80];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 117];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 109];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 112];#memory_int := #memory_int[#t~string64.base,5 + #t~string64.offset := 58];#memory_int := #memory_int[#t~string64.base,6 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 110];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 79];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 41];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 32];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 10];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 417#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 418#L998 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 427#L991 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 432#L1006 main_#t~ret48 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 433#L657 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 452#L629 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 453#L159 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 467#L691-3 [2018-11-18 09:15:20,610 INFO L796 eck$LassoCheckResult]: Loop: 467#L691-3 assume true; 524#L691-1 assume !false; 458#L692 assume test_~splverifierCounter~0 < 4; 459#L693 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 586#L701 assume !(0 != test_~tmp~5); 543#L701-2 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 472#L711 assume !(0 != test_~tmp___0~1); 474#L711-2 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 479#L721 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet52;havoc test_#t~nondet52; 547#L729 assume 0 != test_~tmp___1~0; 519#L729-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret10;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 532#L889 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 454#L169 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 455#L760 assume !(0 != ~pumpRunning~0); 515#L760-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 496#L818 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 498#L792-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 556#L784-3 assume { :end_inline_processEnvironment__wrappee__base } true; 553#L792-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 505#L818-1 assume { :end_inline_processEnvironment } true; 506#L767-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 580#L123 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 456#L180 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 450#L180-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 451#L777 assume { :end_inline_timeShift } true; 467#L691-3 [2018-11-18 09:15:20,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:20,610 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 09:15:20,610 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:20,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:20,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:20,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:20,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:20,667 INFO L82 PathProgramCache]: Analyzing trace with hash 189417356, now seen corresponding path program 1 times [2018-11-18 09:15:20,668 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:20,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:20,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,669 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:15:20,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:20,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:15:20,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:15:20,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:15:20,696 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:15:20,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:15:20,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:15:20,697 INFO L87 Difference]: Start difference. First operand 186 states and 244 transitions. cyclomatic complexity: 60 Second operand 3 states. [2018-11-18 09:15:20,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:15:20,785 INFO L93 Difference]: Finished difference Result 259 states and 327 transitions. [2018-11-18 09:15:20,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:15:20,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 259 states and 327 transitions. [2018-11-18 09:15:20,789 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2018-11-18 09:15:20,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 259 states to 259 states and 327 transitions. [2018-11-18 09:15:20,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 259 [2018-11-18 09:15:20,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 259 [2018-11-18 09:15:20,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 259 states and 327 transitions. [2018-11-18 09:15:20,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:15:20,792 INFO L705 BuchiCegarLoop]: Abstraction has 259 states and 327 transitions. [2018-11-18 09:15:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states and 327 transitions. [2018-11-18 09:15:20,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2018-11-18 09:15:20,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2018-11-18 09:15:20,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 327 transitions. [2018-11-18 09:15:20,799 INFO L728 BuchiCegarLoop]: Abstraction has 259 states and 327 transitions. [2018-11-18 09:15:20,800 INFO L608 BuchiCegarLoop]: Abstraction has 259 states and 327 transitions. [2018-11-18 09:15:20,800 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 09:15:20,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 259 states and 327 transitions. [2018-11-18 09:15:20,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2018-11-18 09:15:20,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:20,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:20,802 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:20,802 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:20,803 INFO L794 eck$LassoCheckResult]: Stem: 991#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 44];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 80];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 117];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 109];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 112];#memory_int := #memory_int[#t~string64.base,5 + #t~string64.offset := 58];#memory_int := #memory_int[#t~string64.base,6 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 110];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 79];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 41];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 32];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 10];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 867#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 868#L998 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 879#L991 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 884#L1006 main_#t~ret48 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 885#L657 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 904#L629 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 905#L159 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 920#L691-3 [2018-11-18 09:15:20,803 INFO L796 eck$LassoCheckResult]: Loop: 920#L691-3 assume true; 975#L691-1 assume !false; 910#L692 assume test_~splverifierCounter~0 < 4; 911#L693 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 1041#L701 assume !(0 != test_~tmp~5); 993#L701-2 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 925#L711 assume !(0 != test_~tmp___0~1); 927#L711-2 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 932#L721 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet52;havoc test_#t~nondet52; 998#L729 assume 0 != test_~tmp___1~0; 970#L729-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret10;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 981#L889 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 906#L169 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 907#L760 assume !(0 != ~pumpRunning~0); 965#L760-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 948#L818 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 949#L792-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 877#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 878#L136-1 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 894#L938-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1021#L938-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 1001#L944-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 933#L796-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 935#L784-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1003#L792-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 955#L818-1 assume { :end_inline_processEnvironment } true; 956#L767-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1033#L123 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 908#L180 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 902#L180-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 903#L777 assume { :end_inline_timeShift } true; 920#L691-3 [2018-11-18 09:15:20,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:20,803 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 09:15:20,804 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:20,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:20,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:20,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:20,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:20,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1929222820, now seen corresponding path program 1 times [2018-11-18 09:15:20,840 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:20,840 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:20,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,841 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:15:20,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:20,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:15:20,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:15:20,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:15:20,886 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:15:20,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:15:20,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:15:20,887 INFO L87 Difference]: Start difference. First operand 259 states and 327 transitions. cyclomatic complexity: 70 Second operand 5 states. [2018-11-18 09:15:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:15:21,077 INFO L93 Difference]: Finished difference Result 747 states and 927 transitions. [2018-11-18 09:15:21,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:15:21,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 747 states and 927 transitions. [2018-11-18 09:15:21,080 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 479 [2018-11-18 09:15:21,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 747 states to 747 states and 927 transitions. [2018-11-18 09:15:21,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 747 [2018-11-18 09:15:21,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 747 [2018-11-18 09:15:21,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 747 states and 927 transitions. [2018-11-18 09:15:21,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:15:21,087 INFO L705 BuchiCegarLoop]: Abstraction has 747 states and 927 transitions. [2018-11-18 09:15:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states and 927 transitions. [2018-11-18 09:15:21,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 508. [2018-11-18 09:15:21,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-11-18 09:15:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 630 transitions. [2018-11-18 09:15:21,107 INFO L728 BuchiCegarLoop]: Abstraction has 508 states and 630 transitions. [2018-11-18 09:15:21,107 INFO L608 BuchiCegarLoop]: Abstraction has 508 states and 630 transitions. [2018-11-18 09:15:21,107 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 09:15:21,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 508 states and 630 transitions. [2018-11-18 09:15:21,110 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 358 [2018-11-18 09:15:21,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:21,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:21,111 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:21,111 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:21,111 INFO L794 eck$LassoCheckResult]: Stem: 2022#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(21);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(13);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 44];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 80];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 117];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 109];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 112];#memory_int := #memory_int[#t~string64.base,5 + #t~string64.offset := 58];#memory_int := #memory_int[#t~string64.base,6 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 110];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 79];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 102];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 41];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 32];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 10];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1890#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret48, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4;assume { :begin_inline_select_helpers } true; 1891#L998 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1902#L991 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1907#L1006 main_#t~ret48 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~4 := main_#t~ret48;havoc main_#t~ret48; 1908#L657 assume 0 != main_~tmp~4;assume { :begin_inline_setup } true; 1927#L629 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1928#L159 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1942#L691-3 [2018-11-18 09:15:21,112 INFO L796 eck$LassoCheckResult]: Loop: 1942#L691-3 assume true; 2004#L691-1 assume !false; 1933#L692 assume test_~splverifierCounter~0 < 4; 1934#L693 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 2080#L701 assume !(0 != test_~tmp~5); 2085#L701-2 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 1948#L711 assume !(0 != test_~tmp___0~1); 1950#L711-2 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 1957#L721 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1997#L972 assume { :end_inline_startSystem } true; 1998#L729-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret10;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 2010#L889 __utac_acc__Specification5_spec__2_#t~ret10 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret10;havoc __utac_acc__Specification5_spec__2_#t~ret10; 1929#L169 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1930#L760 assume !(0 != ~pumpRunning~0); 1992#L760-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1974#L818 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1975#L792-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret73, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1900#L131-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1901#L136-1 isHighWaterLevel_#t~ret73 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret73;havoc isHighWaterLevel_#t~ret73; 1917#L938-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 2054#L938-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 2034#L944-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 1958#L796-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 1960#L784-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2036#L792-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1981#L818-1 assume { :end_inline_processEnvironment } true; 1982#L767-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret11, __utac_acc__Specification5_spec__3_#t~ret12, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 2069#L123 __utac_acc__Specification5_spec__3_#t~ret11 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret11;havoc __utac_acc__Specification5_spec__3_#t~ret11; 1931#L180 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1932#L889-1 __utac_acc__Specification5_spec__3_#t~ret12 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret12;havoc __utac_acc__Specification5_spec__3_#t~ret12; 2014#L184 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1925#L180-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1926#L777 assume { :end_inline_timeShift } true; 1942#L691-3 [2018-11-18 09:15:21,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:21,112 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2018-11-18 09:15:21,112 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:21,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:21,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:21,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:21,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:21,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:21,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1407900928, now seen corresponding path program 1 times [2018-11-18 09:15:21,154 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:21,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:21,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:21,155 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:15:21,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:21,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:21,167 INFO L82 PathProgramCache]: Analyzing trace with hash -94486217, now seen corresponding path program 1 times [2018-11-18 09:15:21,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:21,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:21,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:21,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:21,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:21,320 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-11-18 09:16:10,304 WARN L180 SmtUtils]: Spent 48.91 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 09:16:36,563 WARN L180 SmtUtils]: Spent 26.26 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 09:16:36,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:16:36 BoogieIcfgContainer [2018-11-18 09:16:36,627 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 09:16:36,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:16:36,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:16:36,628 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:16:36,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:15:20" (3/4) ... [2018-11-18 09:16:36,631 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 09:16:36,675 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_67676f3a-dd36-41f9-a894-ab24ae017041/bin-2019/uautomizer/witness.graphml [2018-11-18 09:16:36,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:16:36,675 INFO L168 Benchmark]: Toolchain (without parser) took 77588.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 956.6 MB in the beginning and 907.4 MB in the end (delta: 49.2 MB). Peak memory consumption was 222.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:16:36,676 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:16:36,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:16:36,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:16:36,676 INFO L168 Benchmark]: Boogie Preprocessor took 29.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:16:36,676 INFO L168 Benchmark]: RCFGBuilder took 669.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.5 MB). Peak memory consumption was 79.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:16:36,677 INFO L168 Benchmark]: BuchiAutomizer took 76429.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.0 MB). Free memory was 1.0 GB in the beginning and 912.2 MB in the end (delta: 132.3 MB). Peak memory consumption was 180.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:16:36,677 INFO L168 Benchmark]: Witness Printer took 47.20 ms. Allocated memory is still 1.2 GB. Free memory was 912.2 MB in the beginning and 907.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:16:36,678 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 359.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 669.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.5 MB). Peak memory consumption was 79.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 76429.93 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 33.0 MB). Free memory was 1.0 GB in the beginning and 912.2 MB in the end (delta: 132.3 MB). Peak memory consumption was 180.7 MB. Max. memory is 11.5 GB. * Witness Printer took 47.20 ms. Allocated memory is still 1.2 GB. Free memory was 912.2 MB in the beginning and 907.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 508 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 76.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 75.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 239 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 508 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 851 SDtfs, 1244 SDslu, 917 SDs, 0 SdLazy, 137 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 691]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, ",Pump:"=0, "Off"=0, "Env(Water:%i"=38, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@489fdb2d=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47da7d38=0, "libacc.c"=0, "libacc.c"=0, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5858e29a=0, "OK"=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f667410=0, "On"=0, retValue_acc=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, "\n"=40, ",Pump:"=15, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22804a01=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f933c83=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7370a9ea=42, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27d9228f=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ba3d499=0, tmp=0, "libacc.c"=23, "Off"=0, "__utac__get_this_arg"=29, "On"=0, "Off"=8, tmp___1=0, tmp=1, "__utac__get_this_arg"=26, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=28, switchedOnBeforeTS=0, "i > 0 && i <= this->argsCount"=33, "__utac__get_this_argtype"=22, "__utac__get_this_argtype"=11, tmp=0, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "libacc.c"=0, "Pump(System:"=18, \result=0, "libacc.c"=19, "On"=17, "Pump(System:"=0, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, tmp=1, "__utac__get_this_arg"=0, "On"=14, retValue_acc=1, ") "=0, "libacc.c"=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=27, \result=1, "\n"=0, retValue_acc=0, "CRIT"=36, tmp___2=42, tmp___0=0, splverifierCounter=0, "Env(Water:%i"=0, ",Meth:"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59afe84c=0, ")"=0, "OK"=0, "CRIT"=0, tmp=1, ")"=34, ") "=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7608b34b=0, head=0, "libacc.c"=31, tmp=0, ",Meth:"=37, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=20, "i > 0 && i <= this->argsCount"=24, retValue_acc=0, "Off"=16} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 691]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] FCALL "Env(Water:%i" [L101] FCALL ",Meth:" [L105] FCALL "CRIT" [L109] FCALL "OK" [L113] FCALL ")" [L499] FCALL "i > 0 && i <= this->argsCount" [L499] FCALL "libacc.c" [L500] FCALL "__utac__get_this_arg" [L506] FCALL "i > 0 && i <= this->argsCount" [L506] FCALL "libacc.c" [L507] FCALL "__utac__get_this_arg" [L545] FCALL "i > 0 && i <= this->argsCount" [L545] FCALL "libacc.c" [L546] FCALL "__utac__get_this_argtype" [L552] FCALL "i > 0 && i <= this->argsCount" [L552] FCALL "libacc.c" [L553] FCALL "__utac__get_this_argtype" [L898] FCALL "Pump(System:" [L902] FCALL "On" [L906] FCALL "Off" [L910] FCALL ",Pump:" [L914] FCALL "On" [L918] FCALL "Off" [L922] FCALL ") " [L924] FCALL "\n" [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L153] int switchedOnBeforeTS ; [L568] int cleanupTimeShifts = 4; [L750] int pumpRunning = 0; [L751] int systemActive = 1; [L371] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L648] int retValue_acc ; [L649] int tmp ; [L653] FCALL select_helpers() [L654] FCALL select_features() [L655] CALL, EXPR valid_product() [L1002] int retValue_acc ; [L1005] retValue_acc = 1 [L1006] RET return (retValue_acc); [L655] EXPR valid_product() [L655] tmp = valid_product() [L657] COND TRUE \read(tmp) [L659] FCALL setup() [L660] CALL runTest() [L638] CALL __utac_acc__Specification5_spec__1() [L158] RET switchedOnBeforeTS = 0 [L638] __utac_acc__Specification5_spec__1() [L639] CALL test() [L682] int splverifierCounter ; [L683] int tmp ; [L684] int tmp___0 ; [L685] int tmp___1 ; [L686] int tmp___2 ; [L689] splverifierCounter = 0 Loop: [L691] COND TRUE 1 [L693] COND TRUE splverifierCounter < 4 [L699] tmp = __VERIFIER_nondet_int() [L701] COND FALSE !(\read(tmp)) [L709] tmp___0 = __VERIFIER_nondet_int() [L711] COND FALSE !(\read(tmp___0)) [L719] tmp___2 = __VERIFIER_nondet_int() [L721] COND TRUE \read(tmp___2) [L723] CALL startSystem() [L971] RET systemActive = 1 [L723] startSystem() [L736] CALL timeShift() [L758] CALL __utac_acc__Specification5_spec__2() [L167] CALL, EXPR isPumpRunning() [L885] int retValue_acc ; [L888] retValue_acc = pumpRunning [L889] RET return (retValue_acc); [L167] EXPR isPumpRunning() [L167] RET switchedOnBeforeTS = isPumpRunning() [L758] __utac_acc__Specification5_spec__2() [L760] COND FALSE !(\read(pumpRunning)) [L767] COND TRUE \read(systemActive) [L769] CALL processEnvironment() [L815] int tmp ; [L818] COND FALSE !(\read(pumpRunning)) [L833] CALL processEnvironment__wrappee__highWaterSensor() [L789] int tmp ; [L792] COND TRUE ! pumpRunning [L794] CALL, EXPR isHighWaterLevel() [L930] int retValue_acc ; [L931] int tmp ; [L932] int tmp___0 ; [L936] CALL, EXPR isHighWaterSensorDry() [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] RET return (retValue_acc); [L936] EXPR isHighWaterSensorDry() [L936] tmp = isHighWaterSensorDry() [L938] COND TRUE \read(tmp) [L939] tmp___0 = 0 [L943] retValue_acc = tmp___0 [L944] RET return (retValue_acc); [L794] EXPR isHighWaterLevel() [L794] tmp = isHighWaterLevel() [L796] COND FALSE !(\read(tmp)) [L802] RET, FCALL processEnvironment__wrappee__base() [L833] RET processEnvironment__wrappee__highWaterSensor() [L769] processEnvironment() [L775] CALL __utac_acc__Specification5_spec__3() [L173] int tmp ; [L174] int tmp___0 ; [L178] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] RET return (retValue_acc); [L178] EXPR getWaterLevel() [L178] tmp = getWaterLevel() [L180] COND TRUE tmp != 2 [L182] CALL, EXPR isPumpRunning() [L885] int retValue_acc ; [L888] retValue_acc = pumpRunning [L889] RET return (retValue_acc); [L182] EXPR isPumpRunning() [L182] tmp___0 = isPumpRunning() [L184] COND FALSE, RET !(\read(tmp___0)) [L775] RET __utac_acc__Specification5_spec__3() [L736] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...